A boat heading out to sea starts out at Point A, at a horizontal distance of 853 feet from a lighthouse/the shore. From that point, the boat’s crew measures the angle of elevation to the lighthouse’s beacon-light from that point to be 7 ∘ ∘ . At some later time, the crew measures the angle of elevation from point � B to be 4 ∘ ∘ . Find the distance from point � A to point � B. Round your answer to the nearest foot if necessary.

The number of tables with a seating of 4 people is 13.

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that Beatriz is in charge of setting up a banquet hall. She has five tables that will seat six people each. If no more than 62 people.

The number of the tables will be calculated as:-

Number = 62 / 4

Number = 13

Hence, the number of tables with a seating of 4 people is 13.

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The double integral of (xy y^(-2)) over the region R is equal to 0.

What is double integral ?

The term integral in math is defined as a method of adding or summing up the parts to find the whole and it is basically used to find the volume, area and the central values of many things. Double integrals are a two-dimensional integration method.

The given expression is the integrand of a double integral over the region R defined by the constraints 0 ≤ x ≤ 2 and 0 ≤ y ≤ 2. To calculate this double integral, we would evaluate the following expression:

∬(xy y^(-2)) dA = ∬(xy y^(-2)) dx dy over the region R

We can evaluate this double integral using a change of variables, such as polar coordinates, or using rectangular coordinates.

In rectangular coordinates, we can evaluate the double integral using the following steps:

Evaluate the bounds of integration:

x: 0 to 2

y: 0 to 2

Evaluate the integral with respect to y first, keeping x fixed:

∬(xy y^(-2)) dx dy = ∫(x ∫(y y^(-2)) dy) dx, from 0 to 2

Evaluate the inner integral with respect to y:

∫(y y^(-2)) dy = -y^(-1) = -ln(y) + C, where C is an arbitrary constant

Substitute the solution for the inner integral back into the outer integral:

∫(x (-ln(y) + C)) dx = x(-ln(y)) - xC + D, where D is another arbitrary constant

Evaluate the outer integral with respect to x:

∫(x(-ln(y)) - xC + D) dx = (-x^2/2)ln(y) - (x^2/2)C + xD + E, where E is yet another arbitrary constant

Evaluate the constants of integration C, D, and E using the boundaries of integration for x and y:

-ln(2) - 0C + 0D + E = 0

-2ln(2) - 2^2/2 C + 2D + E = 0

Solving the system of equations, we find C = 2ln(2), D = 0, and E = 0

Substitute the values of C, D, and E back into the solution:

(-x^2/2)ln(y) - (x^2/2)C + xD + E = (-x^2/2)ln(y) - x^2ln(2)

Finally, evaluate the integral over the region R by substituting the bounds of integration for x and y:

(-2^2/2)ln(2) - 2^2ln(2) = -4ln(2) + 4ln(2) = 0

So, The double integral of (xy y^(-2)) over the region R is equal to 0.

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The equation in x and y whose graph is the path of the particle is y = (x - 4)2 + 5. The velocity vector at t= 4 is v(4) = i + 8j.

A vector in mathematics is a quantity that not only expresses magnitude but also motion or position of an object in relation to another point or object. Euclidean vector, geometric vector, and spatial vector are other names for it.

In mathematics, a vector's magnitude is defined as the length of a segment of a directed line, and the vector's direction is indicated by the angle at which the vector is inclined.

Given r(t) as r(t) = x(t)i + y(t)j

Thus, this means that:

x = t+ 4         y = t2 + 5      

We see that we can solve t as:            

t = x - 4, thus:

y = (x - 4)2 + 5

v(t) is given by r'(t).

r'(t) = v(t) = i + 2tj                      

at t = 4:

v(4) = i + 8j

The acceleration is given by:  r"(t).

a(t) = r"(t) = 0i + 2j

The acceleration at t = 4 is:

a(4) = 0i + 2j

Hence, the equation in x and y whose graph is the path of the particle is y = (x - 4)2 + 5. The velocity vector at t= 4 is v(4) = i + 8j.

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The pair of numbers that have a sum of 50 and will produce the largest possible product is 10 and 40, with a product of 400. This was determined by comparing the products of each pair and determining which is the largest.

a. The product of the first pair of numbers is 1 x 49 = 49, the product of the second pair of numbers is 2 x 48 = 96, and the product of the third pair of numbers is 10 x 40 = 400.

b. The pair of numbers that have a sum of 50 and will produce the largest possible product is 10 and 40.

c. To determine which pair of numbers have the largest product, we need to compare the products of each pair and determine which is the largest. In this case, the pair of 10 and 40 have the largest product of 400.The pair of numbers that have a sum of 50 and will produce the largest possible product is 10 and 40, with a product of 400. This was determined by comparing the products of each pair and determining which is the largest.

The complete question is :

What are a few pairs of positive numbers whose sum is 50 and which have the largest possible product?

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The vertical profiles for pressure, density, as well as temperature with in troposphere are displayed in an x-y graph.

Pressure altitude is temperature-adjusted density altitude.

Pressure and temperature have a direct and indirect relationship with density.

Thus, the vertical profiles for pressure, density, as well as temperature with in troposphere are displayed in an x-y graph.

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The inequality equation is y ≤ -2x + 1 and the graph is plotted

Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.

In an inequality, the two expressions are not necessarily equal which is indicated by the symbols: >, <, ≤ or ≥.

Given data ,

Let the inequality equation be represented as A

Now , the value of A is

Substituting the values in the equation , we get

y ≤ -2x + 1   be equation (1)

when the inequality is solved ,

y = -2x + 1 , where the slope of the line is m = -2

Therefore , the value of A is -2x + 1 and the graph is plotted

Hence , the inequality equation is y ≤ -2x + 1

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The sample standard deviation is A. 5.9

What is Standard Deviation ?

It is a measure of how evenly distributed numbers are. It is the square root of the Variance, which is the average of the squared deviations from the Mean.

To find the sample standard deviation, first, we have to find the mean of the data, then subtract each data point from the mean, square each deviation, sum them, divide by the sample size minus 1, and then take the square root of the result.

Here's the calculation:

Mean = (1 + 5 + 12 + 16 + 15 + 12 + 19 + 5 + 10) / 9 = 11

Deviations = [-10, -6, 1, 5, 4, 1, 8, -6, -1]

Squared deviations = [100, 36, 1, 25, 16, 1, 64, 36, 1]

Sum of Squared deviations = 239

Sample Variance = Sum of Squared deviations / (Sample size - 1) = 239 / (9 - 1) = 239 / 8 = 29.875

[tex]Sample \ Standard\ Deviation=\sqrt{(Sample Variance)} \\\\Sample \ Standard\ Deviation=\sqrt{29.875}\\\\ Sample \ Standard\ Deviation= 5.9[/tex]

So, The sample standard deviation is 5.9 (rounded to one decimal place).

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Answer:

y = 8

Step-by-step explanation:

6y+2 = 8y-14

2 = 2y - 14

16 = 2y

y = 8

0.2 pizzas were consumed during the party.

What are the arithmatic calculations?

Arithmetic is the branch of mathematics that deals with basic operations such as addition, subtraction, multiplication, and division, and their properties and applications. Arithmetic calculations are mathematical operations that involve one or more numbers and result in a numerical answer.

To find the number of pizzas consumed during the party, we need to subtract the number of pizzas left at the end of the party from the number of pizzas at the beginning of the party.

At the beginning of the party, there was 1 pizza.

At the end of the party, there were 4/5 pizzas left.

So, the number of pizzas consumed during the party can be calculated as:

1 - 4/5 = 1 - 0.8 = 0.2

Therefore, 0.2 pizzas were consumed during the party.

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Answer: 7/2

Step-by-step explanation: An easy way to calculate slope with two given points is to count the rise (y) between the points (7). Then count the run (x) between the points (2). Then put the rise over the run. 7/2

5.385 is the length of each line segment according to the Pythagoras theorem and distance formula.

The basic Geometric mathematical relationship between one right triangle's three sides is termed as the Pythagorean Theorem, or simply the Pythagorean Theorem. This rule states that the areas with squares with the two parts added together equal the area of the square well with hypotenuse side. The Pythagorean Theorem says that the square that crosses the tangent of a right angled triangle opposite the right angle equals the total of the squares that span the sides of something like a right triangle. It is sometimes written as the generic geometric notation a2 + b2 = c2.

given

A2 + B2 = C2 is a Pythagorean theorem.

Let C be the point (-2,1)

A two-unit line segment AC would be required.

The length of line segment BC would be 5 units.

Incorporate the line segment length into the Pythagorean theorem by adding

2^2 + 562

= 4 + 25

= 29

≅5.385.

5.385 is the length of each line segment according to the Pythagoras theorem and distance formula.

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Answer:

no picture is added ill help you if you add it

Step-by-step explanation:

Answer:

Add a picture than I'll tell you if (b) is correct or not :)

Step-by-step explanation:

The probability of rolling a number less than 5 is 42/60

It is given by the quotient between the number of times that we got a given outcome and the total times that the experiment was performed.

Here we want to find the experimental probability of landing on a number less than 5 (these are 1, 2, 3, 4)

Outcome Frequency

1                  12

2                 13

3                   11

4                   6

These are the tables, adding these we get:

12 + 13 + 11 + 6 = 42

So in 42 out of 60 tosses we got a number less than 5, then the experimental probability is:

42/60

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Sampling randomly is considered a statistically valid reason for choosing subjects for a study as it reduces the risk of sampling bias. The correct option is a.

Sampling bias refers to a systematic error that occurs in the process of selecting subjects for a study, leading to a sample that is not representative of the population.

By selecting subjects randomly, researchers aim to eliminate any preconceived biases or preferences that may influence the selection process. This leads to a sample that is more representative of the population, providing a more accurate representation of the population's characteristics.

Furthermore, random sampling (with a large sample) has the potential to give a perfect reflection of the population, assuming that the sample size is large enough. This is because, as the sample size increases, the sample becomes more representative of the population and tends to exhibit the same characteristics and distributions as the population.

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According to the consecutive interior angles theorem, when two lines are parallel, the consecutive interior angles are supplementary to each other.

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f(x) = ax2 + bx + c, where a, b, and c are real values and a = 0, is a quadratic function. A quadratic function's domain is (,). The graph of the simplest quadratic function, f(x) = x2, is shown below. Its shape, a parabola, should be recognizable from Intermediate Algebra.

To find the time at which the ball hits the ground, we need to find the value of t when h(t) = 0.

Solving -16.1t^2 + 150 = 0 gives us:

-16.1t^2 = -150

t^2 = 9.37

t = 3.05 (rounded to the nearest hundredth)

So the ball hits the ground after 3.05 seconds.

The complete question is:-

The quadratic function h(t)=-16.1t^2 + 150 models a balls height, in feet, over time, in seconds, after it is dropped from a 15 story building.

- From what height, in feet, was the ball dropped?

-After how many seconds, rounded to the nearest hundredth, did the ball hit the ground?

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2x＝ 3 -5√x using log form, x = log(2x + 5√x) = log(3)

To convert the equation 2x = 3 - 5√x into logarithmic form, we need to isolate the radical expression on one side of the equation. We can do this by adding 5√x to both sides:

2x + 5√x = 3

Next, we'll take the square root of both sides to eliminate the radical:

√(2x + 5√x)^2 = √(3^2)

Expanding the left side and simplifying:

2x + 5√x = 3

Finally, we'll take the logarithm of both sides to get x in logarithmic form:

log(2x + 5√x) = log(3)

To solve for x, we'll need to use logarithmic properties and/or exponential functions to isolate x on one side of the equation. log(2x + 5√x) = log(3)

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The area of the base of this prism is 2. 5 square inches

It Is important to note the properties of a triangular prism, they include;

From the information given, we have that;

Base area = 1/2 base × height

Substitute the values, we get

Base area = 1/2 × 5 × 1

Multiply the values

Base area = 2. 5 square inches

Hence, the value is 2. 5 square inches

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The solution to the system of equations ordered pair is (-1, 4).

A simultaneous equation is any one or more equations that can have the same number of unknowns and be solved concurrently. The system of equations is a simultaneous equation.the solution to the system of equations {y=7x+1 , y=−3x+1

Given:

a collection of equations

Equation 1 is y = 7x + 11.

Equation 2: y = 3x + 1.

Equation 1's y value is changed to equation 2's value.

7x + 11 = -3x + 1

10x = -10

x = -1

And y = 4

Consequently, the answer is (-1, 4).

The solution to the system of equations ordered pair is (-1, 4).

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Answer:

ab means a multiplied by b, a(b+c) means add b and c together, then multiply by a, and (a+b)(c+d) means first add a and b

Step-by-step explanation:

ab means product, a(b+c) means product of a and sum of b & c and (a+b)(c+d) product of sum of a & b and c & d.

The result of multiplying two or more numbers together is the sum. The product of two or more numbers is what results from multiplication.

In mathematics, "ab" typically represents the product of two numbers, a and b.

"a(b+c)" represents the product of a and the sum of b and c, where a, b, and c are numbers.

"(a+b) (c+d)" represents the product of the sums of a and b and the sums of c and d.

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The solution to the exponential inequality in this problem is given as follows:

x < 1.72.

The exponential inequality for this problem is defined as follows:

3^(4x - 5) < 8.

The number 8 is not a base of 3, hence the way to isolate the variable x is applying the log of base 3 to both sides, as follows:

log3(3^(4x - 5)) = log3(8)

4x - 5 = log3(8)

The logarithm of base 3 of 8 can be obtained applying the change of base property, as follows:

log3(8) = log(8)/log(3)

log3(8) = 1.893.

Hence the inequality is solved as follows:

4x - 5 < 1.895

4x < 6.896

x < 6.896/4

x < 1.72.

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Answer:

Below

Step-by-step explanation:

68 x 157 = 10 676      to the nearest 100 would be 10700 ....the '7' next to the 6 in the 100s place dictates that you round the 6 UP to 7

Answer: x = 104

Step-by-step explanation:

The diagonals of a square are both congruent and perpendicular.

Because a square is a regular quadrilateral with four equal sides and four equal angles, it is a quadrilateral. A rectangle with two adjacent sides of equal length can also be used to describe it. A chess board, dice, tiles, napkins, etc. are a few examples.

The perpendicular bisectors of a square's diagonals are one another. Each diagonal is divided into two congruent parts as a result, and their intersection creates four right angles. As a result, if a diagonal is given, its length, one segment's length is equal to half of the diagonal's overall length. They are also divided at a 90-degree angle, making them perpendicular, and they are similar in length. 

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Answer:

1

Step-by-step explanation:

You can think of this problem this way:

[tex]0.4*2.5=\frac{2}{5}*\frac{5}{2}=\frac{10}{10}=1[/tex]

Answer: 1

Step-by-step explanation:

there are two decimal places in total, keep that in mind

multiply everything by 10 to make whole numbers and multiply

4x25=100 because 4x5=20 and 4x20=4x10x2=80 and 20+80=100

remember those two decimals we counted, take that number, and move the decimal place over that many in your answer. 100 becomes 1

why not just use a calculator lol, you have internet access

Domain : { x ∈ R : x ≥ 7 }

Range: { f ∈ R : f ≥ 9 }

Given function is:

f(x) =

Firstly find the domain of the given function.

Domain is set of all real x's values where given function is defined.

In other words, we exclude all the x's values from all real values where function is undefined.

In case of square root function, inside the square root given expression must be greater or equal to zero.

So,

x - 7 ≥ 0

Solve for x

x ≥ 7

So, domain is all real x when x ≥ 7.

Now find the Range of this function.

Range is set of all output values.

So, lowest value of out put is 9 when x is 7

and maximum value of the function is infinite.

So, Range is all real f's values when f ≥ 9.

Answer:

Step-by-step explanation:

Assuming the oatmeal raisin and sugar cookies have an equal probability, it is less likely that a chocolate chip cookie will be picked since the other two cookies have a 37.5% chance of being picked. Despite this, it is still both likely and unlikely since it is only a small difference.

To conclude, it depends on what your teacher or textbook think. If they think a 12.5% difference between the other two cookies means that chocolate chip is unlikely, then it's unlikely. In my opinion, it is not equally but near equally likely and unlikely.

Answer:

276.46 in^3

Step-by-step explanation:

See the attached worksheet.  The pencil balloon if formed by a cylinder and cone.  Use the volume formulas for each of these shapes to calculate that shape's contribution to the total volume, and then add them.

The volume of the cylinder portion is 263.9 in^3.

The volume of the cone portion is 12.56 in^3

The sum is 276.46 in^3, which matches the first answer option.

Answer:

276.46 cubic inches

Step-by-step explanation:

Volume of the cylindrical part = πr²h, r= radius, h = height

Volume of a cone  (1/3) πr²h,  r= radius, h = height

For given dimensions

cylinder h = 21, cylinder r = 2

Volume of cylindrical part of balloon = π · 2² · 21 = 4 · 21 · π = 84π cubic inches

Volume of conical part of balloon = (1/3) π · 2² · 3 = 4π

Total volume = 84π + 4π = 88π = 276.46 cubic inches

The volume of the cylinder 1 = 25.12 cubic centimeters.

The volume of the cylinder 2 = 100.48 cubic centimeters.

The volume of the cylinder 3 = 226.08 cubic centimeters.

A cylinder is a 3D solid form made up of two bases that are parallel and identical and are connected by a curving surface. These bases resemble spherical disks. The axis of the cylinder form is a line drawn through the center or connecting the centers of two circular bases.

Given:

3 cylinders have a height of 8 cm cylinder one has a radius of 1 cm cylinder 2 has the radius of 2 cm cylinder 3 has a radius of 3 cm.

The volume of the cylinder 1,

= πr²h

= (3.14)(1)(8)

= 25.12 cubic centimeters.

The volume of the cylinder 2,

= πr²h

= (3.14)(4)(8)

= 100.48 cubic centimeters.

The volume of the cylinder 3,

= πr²h

= (3.14)(9)(8)

= 226.08 cubic centimeters.

Therefore, the volume of each cylinder is given above.

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