A classroom is rectangular in shape. If listed as ordered pairs, the corners of the classroom are (−12, 15), (−12, −9), (9, 15), and (9, −9). What is the perimeter of the classroom in feet?

The rates for the following term in the year a, is [tex]365[/tex], part b, is [tex]189[/tex], part c's difference is unclear, and part d's rate for the final term is [tex]123[/tex].

A term is the name given to each integer in a series. A series has a place for each phrase. Think about the order, for instance Each number in the series is referred to as a word.

The nth term formula, where stood for the term number, can be used to locate any term in a series. Formulas: An arithmetic sequence's nth term is represented by the formula: a n = a + n - 1 d, where is the first word and is a clear differentiation.

(a) To find the rate for the next term in the sequence [tex]2, 5, 14, 41, 122[/tex]

[tex]122 + 3(81) = 365[/tex]

The next term in the sequence is [tex]365[/tex].

(b) To find the rate for the next term in the sequence [tex]1, 5, 13, 29, 61[/tex]

[tex]61 + 4(32) = 189[/tex]

So the next term in the sequence is [tex]189[/tex].

(c) To find the rate for the next term in the sequence [tex]1, 212, 34, 78, 166[/tex]  the differences between consecutive terms are not following a clear pattern. Therefore, we cannot determine the rate for the next term with the information given.

(d) To find the rate for the next term in the sequence[tex]6, 9, 15, 27, 51[/tex]

[tex]51 + 3(24) = 123[/tex]

So the next term in the sequence is [tex]123[/tex].

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Note that the solution of the system of equations will be (-6, -2). (Option A)

A system of equations is a collection of two or more equations with a shared set of unknown variables. The goal is to find the values of the variables that satisfy all the equations simultaneously.

Note that System of equations is represented by two straight lines on a graph.

And solution of the system of equations is the point of intersection of these lines, because that is the point where the values from both functions satisfy all the equations simultaneously.

From the graph attached, two straight lines represent the system of equations.

And the point of intersection of these lines is the solution.

Therefore, solution of the system of equations will be (-6, -2). (Option A)

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Full Question:

Although part of your question is missing, you might be referring to this full question:

What is the solution to the system of equations?
A (-6,2-)

B (-2, 6)

C (6,2)

D (-2,-6)​? See attached image.

The range of the quadratic function above is (-∞, 7].

In mathematics, a quadratic prοblem is οne that invοlves multiplying a variable by itself, alsο knοwn as squaring. In this language, the area οf a square is equal tο the length οf its side multiplied by itself. The term "quadratic" cοmes frοm the Latin wοrd fοr square, quadratum.

Tο determine the quadratic functiοn's range, we must first determine the functiοn's minimum and maximum pοints. The given functiοn is in vertex fοrm, with the vertex at the pοint (h, k), where h is the vertex's x-cοοrdinate and k is the vertex's y-cοοrdinate.

We can see frοm the given equatiοn that the vertex is at the pοint (1, 7). Because the cοefficient οf the x² term is pοsitive, the parabοla οpens upwards and the vertex is the functiοn's minimum pοint.

Thus, The range of the quadratic function above is (-∞, 7].

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Since the calculated t-value (3.14) is greater than the critical value (1.98), we reject the null hypothesis.

In statistical hypothesis testing, the null hypothesis is a statement about a population parameter that is assumed to be true until there is sufficient evidence to suggest otherwise. The null hypothesis is typically denoted by H0 and represents the status quo or default assumption.

The null hypothesis often takes the form of an equality or a statement of "no difference" or "no effect" between two or more groups, variables, or populations. For example, the null hypothesis could be that the mean score of a group of students on a test is equal to a certain value, or that there is no difference in the average height of males and females in a population.

We want to test the hypothesis that the mean amount of time spent in extracurricular activities per week is the same in the suburban and city school districts. Set up the null and alternative hypotheses is as given by:

Null hypothesis: u1 - u2 = 0

Alternative hypothesis: u1 - u2 ≠ 0

To test this hypothesis, we can use a two-sample t-test. We first calculate the test statistic:

t = ((x1 - x2) - (u1 - u2)) / √(s1²/n1 + s2²/n2)

where x1, s1, and n1 are the sample mean, standard deviation, and sample size for the suburban school district, and x2, s2, and n2 are the sample mean, standard deviation, and sample size for the city school district.

Plugging in the values, we get:

t = ((6 - 4) - 0) / √((3²/60) + (2²/40)) ≈ 3.14

This test's degrees of freedom are given by:

df = (s1²/n1 + s2²/n2)² / ( (s1²/n1)² / (n1 - 1) + (s2²/n2)² / (n2 - 1) )

Plugging in the values, we get:

df = ((3²/60) + (2²/40))² / ( (3²/60)² / 59 + (2²/40)² / 39 ) ≈ 93.24

Using a t-distribution table with 93 degrees of freedom and a level of significance of 0.05, we find the critical values to be approximately -1.98 and 1.98.

Since the calculated t-value (3.14) is greater than the critical value (1.98), we reject the null hypothesis and conclude that there is sufficient evidence to suggest that the mean amount of time spent in extracurricular activities per week is different between the suburban and city school districts.

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bobby is hanging a cabinet, the cabinet is 3.5 feet wide and 2 feet tall, if he wants to center the cabinet horizontally on a wall that is 6.25 feet wide, The end of the cabinet will be 1.375 feet away from the edge of the wall.

Bobby is hanging a cabinet. The cabinet is 3.5 feet wide and 2 feet tall. If he wants to center the cabinet horizontally on a wall that is 6.25 feet wide, how far will the end of the cabinet be from the edge of the wall? Bobby is hanging a cabinet that is 3.5 feet wide and 2 feet tall.

If he wants to center the cabinet horizontally on a wall that is 6.25 feet wide, how far will the end of the cabinet be from the edge of the wall?A cabinet is 3.5 feet wide and needs to be centered horizontally on a wall that is 6.25 feet wide. Therefore, the space remaining on the wall is: 6.25 ft - 3.5 ft = 2.75 ft.

So, the amount of space remaining on either side of the cabinet is 2.75 ft / 2 = 1.375 ft.The end of the cabinet will be 1.375 feet away from the edge of the wall.

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Answer: 1.45 Cents per (Rounded to the nearest cent)

Step-by-step explanation:

26 apples = $37.70

We want what one apple costs individually. The best way to do this is to divide both sides by 26.

1 apple = 37.70/26

1 apple = 1.45 Cents

Answer:

To find the equation of the line passing through the points (5,-12) and (0,-2), we first need to find the slope of the line:

slope = (change in y) / (change in x)

slope = (-2 - (-12)) / (0 - 5)

slope = 10 / (-5)

slope = -2

Now that we have the slope, we can use the point-slope form of the line equation to find the equation of the line:

y - y1 = m(x - x1)

where m is the slope, and (x1, y1) is one of the given points on the line.

Let's use the point (5,-12):

y - (-12) = -2(x - 5)

y + 12 = -2x + 10

y = -2x - 2

Therefore, the equation of the line passing through the points (5,-12) and (0,-2) is y = -2x - 2.

1) The area of a circle with a diameter of 1 m is approximately 0.7854 square meters.

2) The area of a circle with a diameter of 100 cm is approximately 7853.98 square centimeters.

3) The area of a circle with a radius of 100 cm is approximately 314159.27 square centimeters.

4) The area of a circle with a radius of 500 mm is approximately 785398.16 square millimeters.

The formula for the area of a circle is A = πr², where A is the area and r is the radius of the circle.

1) If the diameter of the circle is 1 m, then the radius is 0.5 m. Therefore, the area of the circle is:

A = πr² = π(0.5)² = π(0.25) ≈ 0.7854 square meters.

2) If the diameter of the circle is 100 cm, then the radius is 50 cm. Therefore, the area of the circle is:

A = πr² = π(50)² = π(2500) ≈ 7853.98 square centimeters.

3) If the radius of the circle is 100 cm, then the area of the circle is:

A = πr² = π(100)² = π(10000) ≈ 314159.27 square centimeters.

4) If the radius of the circle is 500 mm, then the area of the circle is:

A = πr² = π(500)² = π(250000) ≈ 785398.16 square millimeters.

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In the context of engineering and construction, a bearing point refers to a specific location or area. The bearing of A from C is 230°.

The load from the structural element is transferred to the foundation at a bearing point, which is often a concentrated load point.

To avoid structural failure, settling, or excessive deflection of the part, it is crucial to make sure the bearing point is properly designed and supported.

Since the bearing of C from A is 050°, we can find the bearing of A from C by adding 180° to 50°, which gives us:

Bearing of A from C = 50° + 180° = 230°

Therefore, In the context of engineering and construction, a bearing point refers to a specific location or area. The bearing of A from C is 230°.

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Complete question -

Therefore, the total amount of money utilized on fuel in June 2022 is R11 095,60.

Percent is a way of expressing a quantity as a fraction of 100. It is denoted by the symbol %, which means "per hundred". Percentages are often used to represent proportions or ratios in various fields, including finance, science, and statistics. For example, an interest rate of 5% means that for every hundred dollars borrowed or invested, five dollars of interest will be charged or earned.

Here,

(a) To calculate the total distance covered by the water tanker in March 2022, we need to find the distance travelled per day and multiply it by the number of days in March.

Distance travelled per day = 2 × 18 = 36 km (since it's a return trip)

Number of weekdays in March = 31 - 4 (Saturdays) = 27

Total distance covered = distance per day × number of weekdays

= 36 km/day × 27 days

= 972 km

(b) To determine the quantity of fuel utilized by the water tanker in March 2022, we need to divide the total distance covered by the average fuel consumption rate.

Fuel consumption rate = 5 km/ℓ

Total distance covered = 972 km

Fuel utilized = total distance covered / fuel consumption rate

= 972 km / 5 km/ℓ

= 194.4 ℓ

(c) To determine the total amount of money utilized on fuel for the water tanker in March 2022, we need to multiply the fuel quantity by the fuel price.

Fuel price in March 2022 = R16,28/ℓ

Fuel utilized = 194.4 ℓ

Total cost of fuel = fuel price × fuel quantity

= R16,28/ℓ × 194.4 ℓ

= R3 163,39

Therefore, the total amount of money utilized on fuel for the water tanker in March 2022 is R3 163,39.

(d) To determine the total amount of money utilized on fuel in June 2022, we need to repeat the above calculation using the June fuel price.

Fuel price in June 2022 = R24,14/ℓ

Fuel capacity = 460 ℓ

Total cost of fuel = fuel price × fuel capacity

= R24,14/ℓ × 460 ℓ

= R11 095,60

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Complete question:

Records of the number of water tankers that were supplied to the construction site appear in the calender on ANNEXURE A. The water source is at a distance of about 18 km (return trip) from the construction site. The water tanker has a fuel capacity of 460 litres.. The rate of fuel consumption of the Mercedes water tanker averages 5 km/ℓ. The prices of fuel per litre in March and June 2022 appear below. JUNE 2022 FUEL PRICES \begin{tabular}{|l|l|} \hline DIESEL & COST \\ \hline 50ppm & R24,14 \\ \hline \end{tabular} Source: 4.1 (a) Calculate the total distance that the water tanker has covered in March (2) 2022. (b) Hence, determine the quantity of fuel that was utilized by the water tanker in March 2022. (c) Determine the total amount of money that was utilized on fuel for the water tanker in March 2022. (2) 4.2 Determine the total amount of money that was utilized on fuel in June 2022.

Answer:

adjacent = cos(angle) x hypotenuse

The Trapezoidal rule and Simpson's rule are two methods used to approximate the value of a definite integral. The Trapezoidal rule approximates the integral by dividing the region between the lower and upper limits of the integral into n trapezoids, each with a width h. The approximate value of the integral is then calculated as the sum of the areas of the trapezoids. The Simpson's rule is similar, except the region is divided into n/2 trapezoids and then the integral is approximated using the weighted sum of the area of the trapezoids.

For the given integral 4 x x2 1 0 dx, with n = 200, the Trapezoidal rule and Simpson's rule approximate the integral to be 7.4528 and 7.4485 respectively, rounded to four decimal places. The exact value of the integral is 7.4527. The difference between the exact and approximate values is very small, thus indicating that both the Trapezoidal rule and Simpson's rule are accurate approximations.

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The value of x will be 9.

What is Transversal?

In geometry, a transversal is a line that intersects two or more other lines in a plane. When a transversal intersects two parallel lines, it creates eight angles, four on each side of the transversal. The angles that are opposite to each other and not next to each other are called alternate angles, while the angles that are on the same side of the transversal and not next to each other are called corresponding angles. The angles that are next to each other and on the same side of the transversal are called adjacent angles, and the angles that are opposite to each other and next to each other are called vertical angles.

We know that if two transversal cuts the parallel lines, then the ratio of length of corresponding sides is equal.

So, we have,

    8 / (x-3) = 4 / 3

Now, we can solve for x as follows:

  8 / (x-3) = 4 / 3

  8 × 3 = 4 (x-3)

  24 = 4x - 12

  24 + 12 = 4x

  36 = 4x

 ∴ x = 9.

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Using coefficients ak, the following product may be extended into a power series: the expression is provided in the attached file. For each of the [tex]k 2 N[/tex]phrases, determine the coefficients ak before them. The formula [tex]ak = (-1)k(k+1)/2[/tex] yields the coefficients ak.

To get the coefficients ak, we may first simplify the above formula by factoring out a -x and rearranging terms. This results in the equation: [tex](1-x)/(1+x)2 = -x/(1+x) - x2/(1+x)2.[/tex]

Now, each term in the statement may be expanded into a power series using the formula for the geometric series. This results in: Both[tex]-x/(1+x) and -x2/(1+x)2[/tex] are equal to[tex]-x + x + x + 2 + x + 3 +...[/tex]

By combining like terms and adding these two power series, we can determine that the coefficient in front of [tex]xk is (-1)k(k+1)/2.[/tex]  Hence,[tex]ak = (-1)k(k+1)/2[/tex] is the formula for the coefficients ak.

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A prism with a rectangular base is a figure that has two parallel and congruent rectangular bases connected by rectangular or parallelogram-shaped lateral faces.

Therefore, the figure that is a prism is "a prism with a rectangular base."

A prism with a rectangular base is a three-dimensional solid figure that has two parallel and congruent rectangular bases connected by rectangular or parallelogram-shaped lateral faces. It is a type of prism, which is a geometric figure that has identical ends and flat sides that connect them.

A pyramid with a rectangular base has a rectangular base and triangular faces that meet at a single vertex. A cylinder has two congruent circular bases and a curved lateral surface connecting them. A pyramid has a polygonal base and triangular faces that meet at a single vertex.

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The length of side x can be calculated using the Pythagorean theorem, which states that the sum of the squares of the two shorter sides of a right triangle is equal to the square of the longest side.

Length is the linear distance between two points. It is a fundamental concept in geometry, physics, and many other sciences. In mathematics, length is defined as the magnitude of a line segment, which is the distance between two points. In physics, length is the distance an object moves in a given direction, or the distance an object has traveled during a given period of time.

In this case, the longest side would be x and the two shorter sides would be 2. Therefore, x2 = 22 + 42, which simplifies to x2 = 20. This means that x = √20, which can be written in simplest radical form with a rational denominator as x = 10√2.

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According to the question the simplest radical form with a rational denominator as x = 10√2.

Length is the linear distance between two points. It is a fundamental concept in geometry, physics, and many other sciences. In mathematics, length is defined as the magnitude of a line segment, which is the distance between two points.

The length of side x can be calculated using the Pythagorean theorem, which states that the sum of the squares of the two shorter sides of a right triangle is equal to the square of the longest side.
In this case, the longest side would be x and the two shorter sides would be 2.
Therefore, x2 = 22 + 42, which simplifies to x2 = 20. T
his means that x = [tex]\sqrt{20}[/tex], which can be written in simplest radical form with a rational denominator as [tex]x = 10 \sqrt{2}[/tex]

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c ccccccccccccccccccccccccccccc

Therefore, the side length of the frame is approximately 3.18 inches.

Length is a physical property that describes the distance between two points in space. It is a fundamental dimension in the study of geometry and is usually measured in units such as meters, centimeters, feet, or inches. In the context of mathematics, length can refer to the size or magnitude of a line segment, curve, or other geometric shape.

By the question.

To find the area of the stained-glass frame, we need to subtract the area of the mirror from the area of the larger square formed by the cut corners of the frame. Let's call the side length of each cut square "x".

The larger square formed by the cut corners has side length (3 + x + x) = (3 + 2x) since each cut square adds x inches to the original side length of the mirror.

The area of the larger square is then. [tex](3 + 2x)^{2}[/tex] = 9 + 12x + 4[tex]x^{2}[/tex]square inches.

The area of the mirror is[tex]3^{2}[/tex] = 9 square inches.

The area of the stained-glass frame is the difference between these two areas:

(9 + 12x + 4[tex]x^{2}[/tex]) - 9 = 12x + 4[tex]x^{2}[/tex]

We know that the area of the stained-glass frame is 91 square inches, so we can set this equal to the polynomial we just derived and solve for x:

12x + 4[tex]x^{2}[/tex] = 91

4[tex]x^{2}[/tex] + 12x - 91 = 0

We can use the quadratic formula to solve for x:

[tex]x= \frac{(-12±\sqrt{(12)^{2} -4*4(-91)}}{8}[/tex]

[tex]\frac{x= (-12±\sqrt{1480}}{8}[/tex]

We can discard the negative solution since we are looking for a positive length for the frame, so:

[tex]\frac{x= (-12±\sqrt{1480}}{8}[/tex]

x ≈ 3.18

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Hence, if you merely move north or east on the grid map, there are 126 distinct ways to get to the Tower of London.

A way to arrange things or elements in a particular order is through permutation. In other terms, an orderly rearranging of a set of elements is referred to as a permutation. The symbol n! indicates how many different combinations there are for a set of n elements. Factorial, denoted by an exclamation mark, signifies dividing the number by all positive integers that are less than it by one. For instance, there are 4! = 4 x 3 x 2 x 1 = 24 permutations for a set of 4 items. In several branches of mathematics, including combinatorics, probability, and statistics, permutations are used.

given

You must go 4 blocks north and 5 blocks east to reach the castle. You must make a total of 9 moves to get to the castle because you can only go north or east (4 north and 5 east). Consider this to be a combination problem in which you must select 4 of the possible 9 moves to be in the north and the remaining 5 to be in the east.

Using the combination formula, we can write:

[tex]C(9,4) = 9! / (4! * (9-4)!) = 126[/tex]

Hence, if you merely move north or east on the grid map, there are 126 distinct ways to get to the Tower of London.

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30 percent chance

There are 30 possible numbers that a player can get on their uniform. Out of these, there are 9 single-digit numbers (1, 2, 3, 4, 5, 6, 7, 8, and 9) and 21 double-digit numbers (10, 11, 12, ..., 29, 30).

If no two players can have the same number, then the probability that the first player will get a single-digit number is simply the number of single-digit numbers divided by the total number of possible numbers:

P(single-digit number) = 9/30 = 0.3

So the player is correct that there is a 30% chance that she will get a single-digit number on her uniform.

Answer: 3/5

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Step-by-step explanation: If I am wrong tell me :D

The reason why the terms a and m have to be relatively prime integers is that it is the only way to make sure that ax≡1 (mod m) is solvable for x within the integers modulo m.

Theorem:"If a and m are relatively prime integers and m > 1, then an inverse of a modulo m exists. Furthermore, this inverse is unique modulo m. (That is, there is a unique positive integer a less than m that is an inverse of a modulo m and every other inverse of a modulo m is congruent to a modulo m.)"If a and m are relatively prime integers and m > 1, then an inverse of a modulo m exists. Furthermore, this inverse is unique modulo m. (That is, there is a unique positive integer a less than m that is an inverse of a modulo m and every other inverse of a modulo m is congruent to a modulo m.)The inverse of a modulo m is another integer, x, such that ax≡1 (mod m).

This theorem has an interesting explanation: if a and m are not co-prime, then there is no guarantee that ax≡1 (mod m) has a solution in Zm. The reason for this is that if a and m have a common factor, then m “absorbs” some of the factors of a. When this happens, we lose information about the congruence class of a, and so it becomes harder (if not impossible) to undo the multiplication by .This is the reason why the terms a and m have to be relatively prime integers.

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Probability of getting heads when coin 1 is flipped= 0.4 Probability of getting heads when coin 2 is flipped= 0.7Number of flips= 10(a) To find: The probability that exactly 7 of the 10 flips land on headsWe can find the probability of getting the outcome with the combination of coin 1 and coin 2. P (coin 1 and heads) = P (coin 1) * P (heads|coin 1) = 0.5 * 0.4 = 0.2P (coin 2 and heads) = P (coin 2) * P (heads|coin 2) = 0.5 * 0.7 = 0.35.

Thus, the probability of getting heads= 0.2 + 0.35= 0.55Using the formula of binomial distribution= $^nC_x$ * p^x * (1 - p)^(n - x)Where n= 10, p= 0.55 and x= 7 We have, P (exactly 7 heads) = $^{10}C_7$ * (0.55)^7 * (1 - 0.55)^(10 - 7)= 120 * 0.0559 * 0.1664= 1.108%Thus, the probability that exactly 7 of the 10 flips land on heads is 1.108%.(b) To find: The conditional probability that exactly 7 of the 10 flips land on heads given that the first of these ten flips lands headsWe need to find the probability of getting the first head from coin 1 and coin 2.P (coin 1 and head) = P (coin 1) * P (head|coin 1) = 0.5 * 0.4 = 0.2P (coin 2 and head) = P (coin 2) * P (head|coin 2) = 0.5 * 0.7 = 0.35Thus, probability of getting the first head = 0.2 + 0.35= 0.55Using Bayes theorem, P (7 heads|1st head is heads) = P (1st head is heads|7 heads) * P (7 heads) / P (1st head is heads)P (1st head is heads|7 heads) = 1 (As we have already obtained the 7 heads)P (7 heads) = 0.01108 (As obtained in part a)P (1st head is heads) = P (coin 1 and head) + P (coin 2 and head)= 0.2 + 0.35= 0.55Thus, P (7 heads|1st head is heads) = 1 * 0.01108 / 0.55= 0.02216Thus, the conditional probability that exactly 7 of the 10 flips land on heads given that the first of these ten flips lands heads is 0.02216.

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The missing area or side length in the triangles are:

1: Area = 145 units²

2: Area =  17 units²

3: Area  = 29 units²

4: Area= 27 units²

5: length = √37 units

6: length = 2√26 units

7: length = 3√11 units

8: length  = 5√3 units

Pythagorean theorem states that in a right triangle, the sum of the squares of the lengths of the legs is equal to the square of the length of the hypotenuse. That is:

c² = a² + b²

Where  a and b are the lengths of the legs, and c is the length of the hypotenuse

No. 1

Area (hypotenuse)  = 81 + 64 = 145 units²

No. 2

Area (hypotenuse)  = 16 + 1 = 17 units²

No. 3

Area (hypotenuse)  = 5² + 2² = 29 units²

No. 4

Area (leg)  = 36 - 9 = 27 units²

No. 5

length (hypotenuse)  = √(6² + 1²) = √37 units

No. 6

length (hypotenuse)  = √(10² + 2²) = 2√26 units

No. 7

length (leg)  = √(10² - 1²) = 3√11 units

No. 8

length (leg)  = √(10² - 5²) = 5√3 units

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The monthly payment on a 6-year loan of $15,250 at 3.5% compounded monthly is (b)$235.13 (rounded to the nearest cent).

To find the monthly payment on a loan, we can use the formula:

PMT = (P × r) / [1 - (1 + r) ^ -n]

Where: P = principal amount (in this case, $15,250)

r = interest rate per period (monthly rate = 3.5% / 12 ⇒ 0.002917)

n = the total number of periods (6 years × 12 months/year ⇒ 72 months)

Now we can substitute the values:

PMT = ($15,250 × 0.002917) / [1 - (1 + 0.002917) ^ -72]

After solving we get:

PMT ≈ $235.125 → rounded to the nearest cent,

The compound monthly payment is $235.13.Therefore, option (b) is correct.

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The population increase according to the given years will be 27500, 23750 and 20833.

Mathematicians use multiplication to calculate the product of two or more integers. It is a fundamental operation in mathematics that is frequently used in everyday living. When we need to combine sets of similar sizes, we use multiplication. The fundamental concept of repeatedly adding the same number is represented by the process of multiplication. The results of multiplying two or more numbers are known as the product of those numbers, and the factors that are compounded are referred to as the factors. Repeated adding of the same number is made easier by multiplying the number.

In this question,

p = 200,000 3/4t

When t=0

p=0

When t=1

p= 20000 3/4= 27500

when t=2

p= 20000 3/8 = 23750

When t=3

p= 20000 3/12 = 20833

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The Z-score of the interval within standard deviations of the mean for a normal distribution contains 87% of the probability is 1.11 (rounded to two decimal places).

To find the z-score such that the interval within standard deviations of the mean for a normal distribution contains 87% of the probability, we need to use the standard normal distribution table (Z-table) or a calculator that has the inverse normal function.

The standard normal distribution is a normal distribution with a mean of zero and a standard deviation of 1. It is denoted by the letter Z. Z-scores measure the number of standard deviations a data point is from the mean of the data set. A positive Z-score indicates a data point is above the mean, while a negative Z-score indicates a data point is below the mean.

To find the Z-score such that the interval within standard deviations of the mean for a normal distribution contains 87% of the probability, we first need to find the probability that is outside the interval. Since the interval is within standard deviations of the mean, we can use the empirical rule or the 68-95-99.7 rule to find the probability that is outside the interval.

The 68-95-99.7 rule states that 68% of the probability lies within 1 standard deviation of the mean 95% of the probability lies within 2 standard deviations of the mean 99.7% of the probability lies within 3 standard deviations of the mean. Since we are interested in the interval within standard deviations of the mean that contains 87% of the probability, we can assume that the interval is 1 standard deviation away from the mean.

Using the 68-95-99.7 rule, we can find the probability that is outside the interval:

100% - 68% = 32%

Since the probability that is outside the interval is 32%, we want to find the Z-score that corresponds to the probability of 16% on either side of the mean. We use the Z-table or a calculator that has the inverse normal function to find the Z-score that corresponds to a probability of 0.16.

From the Z-table, the Z-score that corresponds to a probability of 0.16 is 1.11 (rounded to two decimal places).

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Answer:

it will take approximately 5.88 months for Don to pay off the remaining amount of $R = $85t = $85(5.88) = $499.80

Step-by-step explanation:

Don paid $500 upfront and will make monthly payments of $85 for the remaining amount. Let's assume the remaining amount he needs to pay is $R. The total cost of the furniture is the sum of the amount paid upfront and the remaining amount:

Total Cost = $500 + $R

Since he will be paying $85 per month, we can set up an equation to determine the time it will take to pay off the remaining amount:

$R = $85t

where t is the number of months it will take to pay off the remaining amount.

Substituting $R = $85t in the total cost equation, we get:

Total Cost = $500 + $85t

Since we want to find the time it will take to pay off the furniture, we need to solve for t. We can equate the total cost to the amount Don will pay at the end of the payment period, which is:

Total Cost = Amount Paid

$500 + $85t = $500 + $85t + $R

$85t = $R

$500 + $85t = $500 + $85t + $85t

$500 + $170t = $500 + $R

$170t = $R

Substituting $R = $85t, we get:

$170t = $85t

t = $500/$85

t = 5.88 (rounded to two decimal places)

Answer: 61 kg

Step-by-step explanation:

To find the average mass of the other 5 people, we need to subtract the mass of the lightest person from the total mass of all six people and then divide by 5 (since we're looking for the average of the other 5 people). Here are the steps:

   Find the total mass of all six people:

   To find the total mass of all six people, we can multiply the average mass by 6:

Total mass of all six people = 58 kg/person x 6 people = 348 kg

   Subtract the mass of the lightest person:

   We need to subtract the mass of the lightest person (43 kg) from the total mass of all six people:

Total mass of the other 5 people = Total mass of all six people - Mass of the lightest person

Total mass of the other 5 people = 348 kg - 43 kg = 305 kg

   Find the average mass of the other 5 people:

   Finally, we divide the total mass of the other 5 people by 5 to find the average mass:

Average mass of the other 5 people = Total mass of the other 5 people / 5

Average mass of the other 5 people = 305 kg / 5 = 61 kg

Therefore, the average mass of the other 5 people is 61 kg.