please help i need the answer

1 pound is approximately equal to 0.45359237 kilograms. Therefore, 1.5 pounds is approximately equal to 0.45359237 x 1.5 = 0.68 kg

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The percentage of correct answers=70

what i the percentage of the correct answer?

Number of correct answers=35

number of incorrect answers=15

total number of questions=number of correct answers + number of total   incorrect answers

                                            =35+15

                                              =50

Percentage of correct answers = number of correct answers×100/Total  i                                                                                                number of question

                                          =35×100/50

                                        =  3500/50

                                          =70

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Therefore, when the triangle's perimeter is 38 meters and its two sides are 18 meters and 13 meters, respectively, the opposite side of the perimeter is 7 meters.

An isolated path that surrounding, delimits, or embraces a two-dimensional shape or a single-dimension length sometimes referred to as the boundary. The perimeter of either an ellipse or circle refers itself to outermost area. The perimeter measurement has many legitimate applications. This perimeter of a form is its edge's circumference. Discover how to determine the perimeter by adding the lengths of such sides of various forms. Your can always find the perimeter of a polygon by multiplying its multiplicative inverse. The perimeter of an object is the space it around. At your house, a contained garden is one illustration. The perimeter of anything is the area encircling it. For a 50 feet x 50 feet yard, a 200 foot fence is required.

given

The distance surrounding a closed-plane figure is its perimeter, or P.

P is equal to a plus b plus c, where a, b, and c are the lengths of the three sides, and let c be the third side's undetermined length.

P = 38 m, a = 13 m, and b = 18 m are the values provided. Now, to determine the third side's length c,

P = a + b + c

38m = 13m, 18m, and c

38 m = 31 m + c

38 m minus 31 m Equals 31 m minus 31 m plus c

7 m = 0 + c

7 m = c

Therefore, when the triangle's perimeter is 38 meters and its two sides are 18 meters and 13 meters, respectively, the opposite side of the perimeter is 7 meters.

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Answer: Quotient is 3.6*10^10/5 and the standard form is 7.2*10^9

Step-by-step explanation:

Answer:

Step-by-step explanation:

3.6×10∧10÷5=0.72×10∧10

standard form=7.2×10∧9

Answer:

2) 1885 km

3) 795 h 46 m 29 s

Step-by-step explanation:

2)

C = 2πr

C = 2 × 3.14159 × 300 km

C = 1885 km

3)

(1000000 km)/ (1885 km/tour) = 530.16477 tours

1 tour = 1 h 30 m = 1.5 h

530.16477 tours = 530.16477 × 1.5 h = 795.7747155 h = 795 h 46 m 29 s

[tex]\huge\begin{array}{ccc}d=\sqrt{442}=11\sqrt2\end{array}[/tex]

The formula:

[tex]A(x_A,\ y_A),\ B(x_B,\ y_B)\\\\|AB|=\sqrt{(x_B-x_A)^2+(y_B-y_A)^2}[/tex]

SOLUTION:

We have:

[tex]A(-22,\ 20),\ B(-23,-1)[/tex]

Substitute:

[tex]|AB|=\sqrt{(-23-(-22))^2+(-1-20)^2}=\sqrt{(-1)^2+(-21)^2}\\\\=\sqrt{1+441}=\sqrt{442}=\sqrt{121\cdot2}=\sqrt{121}\cdot\sqrt2=\boxed{11\sqrt2}[/tex]

The value of x for each given right angled triangle are:

Please remember that these answers are calculated using calculator.

Remember that a triangle has the sum of angles 180°; then since we have a right angled triangle, then the sum of the non-right angles in the triangle should be equal to 90°.

We use Θ as the note for the unknown non-right angle.

1. 36° + Θ = 90°

Θ = 54°

Under the Sinus Law:

x / sin 54 = 7 / sin 90

x / 0.8 = 7 / 1

x = 5.6

2. 41° + Θ = 90°

Θ = 49°

Under the Sinus Law:

x / sin 49 = 6 / sin 90

x / 0.75 = 6 / 1

x = 4.52

3. 30° + Θ = 90°

Θ = 60°

Under the Sinus Law:

x / sin 90 = 6 / sin 60

x / 1 = 6 / (√3/2)

x = 4√3

4. 37° + Θ = 90°

Θ = 53°

Under the Sinus Law:

5 / sin 53 = x / sin 90

x = 5 / 0.79

x = 6.26

5. 33° + Θ = 90°

Θ = 57°

Under the Sinus Law:

7 / sin 90 = x / sin 57

7 / 1 = x / 0.84

x = 5.87

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Check the picture below.

For Deepa to find his yearly balance in a single step, he must multiply his money by 1.01

Simple interest is often a predetermined percentage of the principle amount borrowed or lent paid or received over a specific time period. Borrowers are required to pay interest on interest in addition to principal since compound interest accrues and is added to the accrued interest from prior periods.

The following calculation must be done in order to determine what Deepa should multiply his current balance by in order to find his total balance in a year in one step if no money will be added to or removed from the investment. Deepa invests money in an account that pays a simple interest rate of 1% per year.

Current balance = X

Interest = 1% = 1/100 = 0.01

Interest + principal = 1.01

1.01X = Total balance in a year

Deepa must therefore multiply her money by 1.01 in order to determine it in a single step.

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As a result, we obtain the frequency and relative frequency distributions:

Data               Relative Frequency          

A                           0.5

B                           0.19

C                           0.31

The relative frequency is the ratio of the frequency to the total frequency corresponding to each entry.

Here,

Here we have a total sample as: 120

Also, the frequency corresponding to A is: 60

Corresponding to B is: 23

and corresponding to C is: 37

Hence, the Frequency table is as follows:

Data               Frequency

A                          60  

B                           23

C                           37

The relative frequency table is given by:

Data               Relative Frequency          

A                      60/120=0.5

B                       23/120=0.19  

C                       37/120=0.31

Hence, we get the frequency and relative frequency distributions:

Data               Relative Frequency          

A                           0.5

B                           0.19

C                           0.31

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Answer:

the angle of SQR = 40°

Step-by-step explanation:

in any triangle, the sum of all angles will be equal to 180°

by adding RSQ and QRS you get 140°

180°-140°=40°

The measurement of angle ∠SQR is 40 degrees

We are given that  triangle QRS the measure of angle RSQ is 117°, and the measure of angle QRS is 23°.

Since we know that in any triangle, the sum of all angles will be equal to 180°

To find the total angle of any polygon, use the formula = 180(n-2)

The "n" is number of sides a polygon have. Triangle has 3 sides.

Hence,substitute as n=3 in the formula above.

Total angle in a triangle =180(3-2)= 180(1)

= 180 degrees

∠QRS+∠RSQ+∠SQR=180°

180°-140°=40°

The angle SQR= 40°

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An equivalent expression of 3(2x + 11y) is 6x + 33y.

Expressions that are equivalent to the same thing, even when they have distinct appearances. When we enter the same value(s) for the variable, two algebraic expressions that are equivalent have the same value (s).

Given:

An expression,

3(2x + 11y).

The distributive property:

a(b + c) = ab + ac.

So,

3(2x + 11y) = 6x + 33y

Therefore, 6x + 33y is an equivalent expression.

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The distance from the base's center at that time is 18 feet.

What is function?

A relation between a collection of inputs and outputs is known as a function. A function is, to put it simply, a relationship between inputs in which each input is connected to precisely one output. Each function has a range, codomain, and domain. The usual way to refer to a function is as f(x), where x is the input.

A function is typically represented as y = f. (x).

h(x) = 16 ft x is the distance from the base when

h(x) = 16 h(x) = -IxI + 34

when a raindrop falls from the end of the roof.

16 = -IxI + 34

IxI = 34 – 16 = 18

It might land on the roof's opposite end.

The distance from the base's center at that time is 18 feet.

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The largest value of x that satisfies the inequality is approximately -1.8639.

To find the largest possible value of x that satisfies the inequality 1/(x + 2)⁶ > 1,000,000, we can start by rearranging the inequality:

1/(x + 2)⁶ > 1,000,000

Taking the reciprocal of both sides:

(x + 2)⁶ < 1/1,000,000

Now, let's take the sixth root of both sides:

x + 2 < (1/1,000,000)[tex]}^{1/6[/tex]

Calculating the right side:

x + 2 < 0.1361

Subtracting 2 from both sides:

x < 0.1361 - 2

x < -1.8639

Therefore, the largest value of x that satisfies the inequality is approximately -1.8639.

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The value of k such the the solution of differential equation of dx/dt = kx is k = ln(3).

By multiplying the original exponential function by the derivative of its power, one can differentiate an exponential.

The rule for differentiating an exponential function is  f(x)=a^u = a^t ln(t).

The given function is:

x(t) = 3^t

Using the differential rule for the exponential function we have:

d/ dt (3^t) = 3^t ln(3)

Substituting the value of x(t) in the equation with 3^t ln(3) we have:

3^t ln(3) = k 3^t

Since 3^t is a non-zero expression the value of k corresponding to the given value is:

ln(3) = k

Hence, the value of k such the the solution of differential equation of dx/dt = kx is k = ln(3).

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The inverse of the cosecant function is the secant function so option A is correct.

In mathematics, the inverse of a function "f" is another function "g" such that when "f" is applied to an input "x", the result is "x". And when "g" is applied to the result, the original input "x" is recovered. This relationship can be expressed as: f(g(x)) = x and g(f(x)) = x.

The cosecant function is defined as the reciprocal of the sine function, so csc(x) = 1/sin(x). The inverse of the cosecant function is the secant function, which is defined as the reciprocal of the cosine function, so sec(x) = 1/cos(x).

In other words, when the cosecant function is applied to an angle "x", the result is 1/sin(x), and when the secant function is applied to the result, the original angle "x" is recovered. This relationship can be expressed as: sec(csc(x)) = x and csc(sec(x)) = x.

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Answer: (-3,6)

Step-by-step explanation:

The point is 3 spaces to the left in the second quadrant on the x-axis which is negative

Then it is 6 spaces up on the y-axis which is positive

Step 1: limx→0[f(x)+g(x)] .Rule or Limit Law used: Sum Rule for Limits.

Step 2: limx→0f(x)+limx→0g(x) .Rule or Limit Law used: Limit of a Sum Rule.

Step 1: limx→0[f(x)+g(x)]

This first step is using the sum Rule for Limits. This rule states that the limit of the sum of two functions is equal to the sum of the limits of the individual functions. So in this case, the limit of the sum of f(x) and g(x) is equal to the sum of the limits of f(x) and g(x) individually.

Step 2: limx→0f(x)+limx→0g(x)

This second step uses the Limit of a Sum Rule. This rule states that the limit of the sum of two functions is equal to the sum of the individual limits of the functions. So in this case, the limit of the sum of f(x) and g(x) is equal to the sum of the individual limits of f(x) and g(x). This is the same result as in the first step, but using a different rule.

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The value of x is 6

The possible error could your friend have made to get x​ = -2 is Your friend should have added 5x and 4x to get a sum of 9​x, but instead got a sum of 8x. Option C

Algebraic expressions are described as expressions that are composed of variable, terms, coefficients, factors and constants.

These expressions are also made up of mathematical or arithmetic operations. These operations include;

From the information given, we have the equation;

5x + 4x - 68 = 34 - 8x

collect like terms

5x + 4x + 8x = 34 + 68

Add or subtract the like terms

17x = 102

Divide both sides by the coefficient of the variable, we get;

17x/17 = 102/17

x = 6

Hence, the value is 6

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A mathematical statement that establishes the equality of two mathematical expressions is the definition of an equation in algebra.

The definition of an equation in algebra is a mathematical statement that proves two mathematical expressions are equal. Mathematical equations with two expressions on either side of the "equal to" sign are referred to as simple equations.

Let the distance he walks till turning back be 'd',

The total distance while returning back = d + 3.25 miles

Time per unit mile = 8 minutes,

Total distance he walks after already completing 3.25 miles

= 2d+3.25 miles

Therefore, total time for this distance [tex]$=(2 \mathrm{~d}+3.25) * 8=16 \mathrm{~d}+26$[/tex] minutes,

Given that it will take 50 minutes to get to the car after traveling 3.25 miles south,

Let the equation be

[tex]$$\begin{aligned}& 16 d+26=50 \\& 16 d=24 \\& d=\frac{24}{16}=1.5 \text { miles; }\end{aligned}$$[/tex]

Therefore, the required answer exists be 1.5 miles.

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[tex]Let \: the \: two \: points \: be \: \underline{\underline{A( x_{1} ,y_{1})}} \: and \: \underline{\underline{B \: ( x_{2}, y_{2})}}[/tex]

Then ,

[tex]\boxed{d(AB) = \sqrt{ {( x_{2} - x_{1}) }^{2} + {( y_{2} - y_{1}) }^{2} } }\\ [/tex]

where , d(AB) is the distance between the two points A and B.

hope helpful! :)

Answer:

the Distance Between the two points a and b

Step-by-step explanation:

Distance between two points is the length of the line segment that connects the two points in a plane. The formula to find the distance between the two points is usually given by d=√((x2 – x1)² + (y2 – y1)²). This formula is used to find the distance between any two points on a coordinate plane or x-y plane.

The two possible answer is  3(5.5a - 2.4b + 12) that Laine could have written for expression 16.5a - 77.2b + 36 .

Laine could just just used another common number to write it down as,

LCM(165, 36, 72) = 3960

Prime factorization of the numbers:

165 = 3 × 5 × 11

36 = 2 × 2 × 3 × 3

72 = 2 × 2 × 2 × 3 × 3

LCM(165, 36, 72)

= 2 × 2 × 2 × 3 × 3 × 5 × 11

= 3960

GCD(165, 36, 72) = 3

So we get three as a common multiple of them so after removing 3 common from them we can write 16.5a - 7.2b + 36 as

3(5.5a - 2.4b + 12)  

Hence, The two possible answer is  3(5.5a - 2.4b + 12) that Laine could have written for expression 16.5a - 77.2b + 36.

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The five-number summary for the given data include the following:

In Mathematics, a box-and-whisker plot can be defined as a type of chart that can be used to graphically or visually represent the five-number summary of a data set with respect to locality, skewness, and spread.

Based on the information provided above, the five-number summary for the given data set include the following:

By critically observing the box-and-whisker plots or boxplot (see attachment), we can logically deduce that it has a median of 309 with an interquartile range (IQR) as follows;

Interquartile range (IQR) = Q₃ - Q₁

Interquartile range (IQR) = 335.25 - 310.5

Interquartile range (IQR) = 24.75

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Complete Question:

Determine the five-number summary for the given data. Prices in dollars of smartphones:

311, 309, 312, 314, 399, 312

The boat is approximately 515 feet away from the lighthouse.

To find the distance from the boat to the lighthouse, we can use trigonometry. The angle of depression from the person to the boat is 28°, and the height of the lighthouse is 200 feet. Let's call the distance from the boat to the lighthouse x. Using the tangent function, we have

Solving for x, we have x = 200 / tan 28°. Approximating this value using a calculator, we have x ≈ 514.7 feet. Rounding to the nearest foot, the boat is approximately 515 feet away from the lighthouse.

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Answer:

1.725

Step-by-step explanation:

1/4 or .25 multiplied by the total of 6.9

The slope is:

Work/explanation:

To find the slope, I use the slope formula

[tex]\sf{m=\dfrac{y_2-y_1}{x_2-x_1}}[/tex]

where m = slope.

Plug in the data

[tex]\sf{m=\dfrac{-2-4}{14-(-1)}[/tex]

Simplify

[tex]\sf{m=\dfrac{-6}{14+1}}[/tex]

Simplify the denominator

[tex]\sf{m=-\dfrac{6}{15}}[/tex]

Finally, reduce the fraction to its lowest terms.

[tex]\sf{m=-\dfrac{2}{5}}[/tex]

The formula for the sum of cubes of the first n natural numbers is:

(1^3 + 2^3 + 3^3 + ... + n^3) = (1 + 2 + 3 + ... + n)^2

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The tip of the pendulum travels 22.33 inches in a singles swing.

A pendulum is a weight suspended from a pivot so that it can swing back and forth under the influence of gravity. Pendulums are commonly used as timekeepers in clocks, but they also have other applications, such as in seismology, where they can be used to detect earthquakes.

Each swing does an angle of 40° in each direction, so we have a total angle of 80°.

Then, we want to get the length of an arc defined by an angle of 80° on a circle with a radius of 16 in, this is:

L = (80°/360°) * 3.14 * (2 * 16 in)

   = 22.33 in.

The distance that the tip of the pendulum travels on each swing is 22.33 inches.

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The tip of the pendulum travels approximately 28.3 inches in a single swing through an angle of 40 degrees.

To calculate how far the tip of the pendulum travels in a single swing through an angle of 40 degrees, we will use the formula:

Distance = 2 * PI * Length * (angle / 360)

Where PI is approximately 3.14 and Length refers to the length of the pendulum.

In this case, the length of the pendulum is 16 inches. Therefore, we can substitute these values into the formula:

Distance = 2 * 3.14 * 16 * (40 / 360)

Distance = 2 * 3.14 * 16 * 0.111

Distance = 28.3 inches

Therefore, the tip of the pendulum travels approximately 28.3 inches in a single swing through an angle of 40 degrees.

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Answer:

Below

Step-by-step explanation:

Interest = p r t    p = principle = 300   r = decimal interest = .14    t = years = 4

 Interest = 300 * .15 * 4 = 180 dollars