How do you find the area of a circle

Answers

Answer 1

Explanation:

The area of a circle can be calculated as:

[tex]\text{Area}=\pi\times r^2[/tex]

Where π is approximately 3.14 and r is the radius of the circle.

So, if we have a circle of radius equals 4 ft, the area will be equal to:

[tex]\begin{gathered} \text{Area = 3.14}\times(4ft)^2 \\ \text{Area = 3.14}\times16ft^2 \\ \text{Area}=50.24ft^2 \end{gathered}[/tex]

Answer 2

Answer: A=πr^2

Step-by-step explanation:

Find the radius

Multiply it by pie

and then square it


Related Questions

32” TV height: 16” width: _____

Answers

Answer:  the answer is 20"

Step-by-step explanation:

determine the number of solutions for:

10x-2y=-16

-5x=8-y
hurry

Answers

The equations 10x-2y=-16 and -5x=8-y have infinitely many solutions because the lines are the same.

What is a linear equation?

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

It is given that:

10x - 2y = -16

-5x = 8 - y

Or

-5x + y = 8

10/(-5) = -2/1 = -16/8

-2 = -2 = -2

The equations are the same which means the lines are coincident.

There will be infinitely many solutions.

Thus, the equations 10x-2y=-16 and -5x=8-y have infinitely many solutions because the lines are the same.

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Fill in the next two terms in the pattern. Enter your answers in the boxes. 0.16, 0.35, 0.54

Answers

ANSWER

0.73, 0.92

EXPLANATION

We want to fill the next two terms in the pattern.

The pattern given is:

0.16, 0.35, 0.54

There is a common difference in this pattern (the difference between two successive terms).

To find this, let us subtract the first term from the second:

0.35 - 0.16 = 0.19

This is the same for the third term subtracting the second term:

0.54 - 0.35 = 0.19

Therefore, the next two terms can be gotten by adding 0.19:

0.54 + 0.19 = 0.73

0.73 + 0.19 = 0.92

The next two terms are 0.73 and 0.92.

To find the next two terms, we must first identify the common difference. This can be found by subtracting two values, which would look like:

0.35 - 0.16 = 0.19

We now know our common difference is 0.19.

With knowledge of our common difference, we can apply it to this arithmetic sequence to find the next two terms:

0.54 + 0.19 = 0.73

0.73 + 0.19 = 0.92

The first five terms of this sequence are:

0.16, 0.35, 0.54, 0.73, and 0.92

where 0.73 is the 4th position and 0.92 is the 5th position.

Willow can use the greatest common factor to rewrite 36+27 as (4 + ).

Answers

Answer:

The greatest common factor of

27

and

36

is

9

.

Step-by-step explanation:

One way to find the greatest common factor (GCF) is to list all of the factors for the numbers. Factors are all of the numbers that can be multiplied to get the number listed. We'll start by finding both number's factors.

27

=

1

,

3

,

9

,

27

36

=

1

,

2

,

3

,

4

,

6

,

9

,

12

,

18

,

36

If you are confused on what factors are or need more explanation, go to www.mathisfun.com/numbers/factors=all-tool.html.

Now that we know the factors of both numbers, we want to find the largest factor that both numbers have. If we read through the list, we see that both

27

and

36

share the factors

3

and

9

.

9

is larger, so

9

would be the GCF.

I hope that this helped you. If you have any questions about this problem, message me or go to www.mathisfun.com/greatest-common-factor.html.

The greatest common factor to rewrite 36 + 27 as (4 + 3 ) is 9.

What is an expression?

An expression contains one or more terms with addition, subtraction, multiplication, and division.

We always combine the like terms in an expression when we simplify.

We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.

Example:

1 + 3x + 4y = 7 is an expression.

3 + 4 is an expression.

2 x 4 + 6 x 7 – 9 is an expression.

33 + 77 – 88 is an expression.

We have,

36 + 27

Taking out 9 commons.

9 (4 + 3)

Thus,

The greatest common factor to rewrite 36 + 27 as (4 + 3 ) is 9.

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LESSON 3
Rotations
Instruction
-S
44
2. What image is the translation of the shown triangle given by the translation rule (x, y) → (x-
3, y + 3)?
op
Activity
-S
$
Review
x
Assessment
(1 point)

Answers

It means move the x three units to the right and the y three units up

which statement best describes the association between the energy and light output of these light bulbs?

Answers

Answer: there is no apparent association between the energy and light output

According to the graph, it observed that at some points, as the energy increases the light out put also increases.

Also, as the energy increases the light out put also decreases

This made me conclude that, there is no apparent association between the energy and light output

Therefore, the best statement that describes the association between the energy and light output is statement J

Solve for the value of q

Answers

Answer:

180 - 90 = 90

5q + 5 + (4q - 5) = 90

9q = 90

q = 10

What number should be placed in the box to help complete the division calculation?

long division setup showing an incomplete calculation. 15 is in the divisor, 6396 is in the dividend, and 4 hundreds and 2 tens is written in the quotient. 6000 is subtracted from 6396 to give 396. An unknown value represented by a box is being subtracted from 396.

Answers

Answer:

300

Step-by-step explanation:

I got it correct

if x=5 work out the value of 2x squared

Answers

5^2=25
2(25)=50
x = 50

2x^2 can be modeled as:

2((x)(x))
2((5)(5))
2(25)
50

Given the inequality 6x ≤ 18, determine the value of x.

S:{26}
S:{14}
S:{7}
S:{3}

Answers

S:{3}
To find the answer divide 6 by 6 and 18 by 6

The value of x in the given inequality 6x ≤ 18, is S:3 out of all the given options.

The correct answer is S:3.

To solve for x, we divide both sides of the inequality by 6. When dividing by a negative number, we flip the direction of the inequality sign. This gives us x ≤ 3.

Therefore, the possible values of x are 3, 2, 1, 0, and so on. The answer can not be 26, 14, or 7, because those values would make x greater than 3.

Here is the solution in steps:

6x ≤ 18

6x/6 ≤ 18/6 (divide both sides by 6)

x ≤ 3

Therefore, the value of x is 3.

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a spherical ball fits snugly inside a cylindrical jar, so that the ball touches the top and bottom of the jar, and the sides of the jar. the volume of the cylinder is $432 \pi.$ what is the volume of the sphere?

Answers

The volume of the sphere that snugly fits into the cylinder of volume 432π cube units is 288 cube units.

It is given that

The fall snugly fits inside the cylindrical jarThe ball touches the top and bottom of the cylindrical jar

Therefore, from the image attached we can infer that

the diameter of the sphere and the cylinder is the same
hence, they have the same radius.the height of the cylinder is the same as the diameter of the sphere, i.e twice the radius

Let the radius of the cylinder and the sphere be r units

Let the height of the cylinder be h units.

Hence h = 2r units

We know that the volume of the Sphere is 4/3πr³

The volume of a cylinder is πr²h

= πr² X 2r

= 2πr³ units cube

According to the problem,

2πr³ = 432π

Multiplying L.H.S with 2/3 gives us

4/3πr³ = 2/3 X 432π

or, 4/3πr³ = 288π

or, the volume of the sphere is 288π cube units

288π cube units

Correct Question

A spherical ball fits snugly inside a cylindrical jar so that the ball touches the top and bottom of the jar and the sides of the jar. the volume of the cylinder is 432π what is the volume of the sphere?

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Mark has $14 to buy lunch for himself and his sister. He wants to buy at least 1 sandwich
and 1 drink. Sandwiches cost $5, and drinks cost $2. Write three inequalities to represent
the three constraints on the number of sandwiches and drinks Mark could buy.

Answers

Answer:7

Step-by-step explanation:5x3

5+x=7

2+5=x

Answer: hey could buy one of each and share with his sister

14-5=9

9-2=7

Determine whether each function is linear or nonlinear. y-t=n 12 11 13x+​

Answers

The function y-t = n(12 - 11 + 13x) is linear according to the y-intercept form.

What is linear equation?

A first-degree polynomial is a statement that a constant is equal to a first-degree polynomial, or the sum of a group of terms that are each the product of a constant and the first power of a variable.

The formula for a linear equation with n variables is a0 + a1x1 +... + anxn = c, where x1,..., and xn are variables, the coefficients a0,..., and an are constants, and c is a constant.

When there are multiple variables, the equation might be linear for some of the variables but not for others. The equation x + y = 3 is therefore linear in both x and y, as opposed to x + y2 = 0, which is linear in x but not in y.

We have been asked to find if the equation y-t = n(12 - 11 + 13x) is linear or nonlinear.

W know that a equation is linear if its in the y-intercept form

y = mx + b

Lets simplify the equation and we get

y-t = n(12 - 11 + 13x)

y - t = 12n - 11n + 13nx

y = n + 13nx + t

y = 13nx + (t + n)

This equation is in y-intercept form where

y = y

m = 13n

x = x

b = (t + n)

Thus, The function  y-t = n(12 - 11 + 13x) is linear according to the y-intercept form.

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if b = Bryce’s present age, write an expression for his age ten years from now

10-b
10b
10+b
b-10

Answers

The answer is 10b because it make more sense.

Answer:

10+b

Step-by-step explanation:

b-10=however old he was 10 years ago

10b = 10 times his current age

10-b doesn't really have anything to do with his age

10+b= 10 years plus however old he is.

Linel is shown on the coordinate plane below.Which statement is true about Line I?The slope is less than 0 and the y-intercept is less than zero.The slope is greater than 0 and the y-intercept is less than zero.O The slope is greater than 0 and the y-intercept is greater than zero.O The slope is less than 0 and the y-intercept is greater than zero.

Answers

we know that

about the line P

1) the slope is positive, so is greater than zero

2) the y-intercept is negative

therefore

the answer is the second option

PLEASE HURRY! 40 POINTS!
Charlize earns an annual mean gross pay of $87,655.00. What percent of her total salary will she have left over if her student loan payments are $325.00 per month for 144 months? Round to the nearest tenth. (1 point)
96.5%
95.6%
96.6%
95.7%

Answers

Charlize will be left over with  95.6% of her total salary if her student loan payments are $325.00 per month for 144 months .

in the question ,

it is given that

Total salary of Charlize = $87655 .

since the pay is annual the student loan payment will also be for 12 months.

amount Charlize pays per month as student loan = $325

So , the amount Charlize spent on loan payment = $325×12

                                                                                  = $3900

Amount left with Charlize after deduction = $87655 - $3900

                                                                     = $ 83755

So the percent of  amount left with Charlize after deduction

= (amount left)/(total salary) × 100

Substituting the values

we get

percent of amount left with Charlize after loan deduction =(83755/87655)*100

= 0.955507*100

= 95.5507

rounding off to the nearest tenth

≈ 95.6 %

Therefore , Charlize will be left over with  95.6% of her total salary if her student loan payments are $325.00 per month for 144 months .

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Donte is told that for a particular math problem, the value of y is always 8 times the value of x. Donte writes the equation y=8x to show the relationship between x and y. What is the constant of proportionality?

Answers

Answer:

32768

Step-by-step explanation:

8x8x8x8x8

Answer:8

Step-by-step explanation:

Help with this geometry question I’ll give Brainliest

Answers

By drawing two equivalent right triangles, we will get:

m∠HIF = 58°

How to get the measure of angle HIF?

Let's look at the given image.

If we draw a vertical line that comes down from H, then we will form a little right triangle.

And if we draw another line that goes up from I we will get another right triangle, such that these two form a rectangle togheter.

Notice that these two triangles will be equivalent, just inverted.

Then the measure of HIF (the angle at vertex I of the left right triangle) will be equal to IHG (the angle at vertex H of the right triangle).

From that we conclude that:

m∠HIF = 58°

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a layer of dirt must be spread over a circular area 3 feet in diameter. how deep a layer will be obtained using 45 cubic feet of dirt?

Answers

By solving a linear equation, we can see that the deep of the layer will be 6.37 ft.

How deep will be the layer?

For a cylinder of radius R and deep D, the volume is:

V = pi*R^2*D

Where pi = 3.14

In this case, we know that the diameter is 3 ft, so the radius is:

R = 3ft/2 = 1.5ft

And the volume of dirt used is 45 cubic feet, then the deep D must be a solution of the following linear equation:

45 ft^3 = 3.14*(1.5ft)^2*D

Solving this for D, we get:

(45 ft^3)/(3.14*(1.5ft)^2) = D

6.37 ft = D

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Quality Ts produces T-shirts for a $30 design fee plus a $6 charge per shirt printed.

Answers

The function rule for this scenario can be written in slope-intercept form as: y = 6x + 30.

How to Write a Function Rule?

A function rule can be written in slope-intercept form using the unit rate or slope (m), and the starting value/initial value or y-intercept (b). The values of m and b, when determined, are simply plugged into the equation, y = mx + b.

We are given that the design fee that is charged by the cloth designer is a fixed fee of $30. This means that the starting value or y-intercept (m) is 30.

From the problem, we are also given that the additional charge per shirt printed is $6, this also implies that the slope or unit rate (m) of the function is 6.

To write a function rule in slope-intercept form, substitute m = 6 and b = 30 into y = mx + b:

y = 6x + 30.

The function rule for the cost of t-shirt produced based on the number of shirts is expressed as: y = 6x + 30.

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WXYZ is a kite. Angle WXY has a measure of 133 degrees and angle ZYX has a measure of 34 degrees. Find the measure of angle ZWY.

Answers

[tex]\underset{in~degrees}{\textit{sum of all interior angles}}\\\\ S = 180(n-2) ~~ \begin{cases} n=\stackrel{number~of}{sides}\\[-0.5em] \hrulefill\\ n = 4 \end{cases}\implies S=180(4-2)\implies S=360[/tex]

Check the picture below.

Which window with the following dimensions is too small to allow a 48-inch piece of glass to fit through it?
28 x 45 inches
36 x 27 inches
40 x 40 inches
40 × 42 inches

Answers

The dimensions 36 x 27 inches are too small to allow a 48-inch piece of glass to fit through it.

What is meant by dimensions?An object's dimension is a topological measure of the size of its covering properties. It is the number of coordinates required to specify a point on the object.A dimension is a measurement that includes things like length, width, and height. When you talk about an object's or place's dimensions, you're referring to its size and proportions. Dimensions are the powers to which basic units or quantities are raised in order to represent a specific physical quantity. <br> e.g., : In the gravitational constant formula, the length, mass, and time dimensions are 3, -1, and -2, respectively. The dimensional formula is defined as the physical quantity expressed in terms of its basic unit with proper dimensions. Dimensional force, for example. F = [M L T-2] It's because the Force unit is Newton, or kg*m/s2.

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Use the following diagram to solve for x. Round to the nearest tenth if necessary.
x + 8
20
2x-5
22.5

Answers

Conditional probability is the likelihood that any event A will occur in the presence of another event B that is related to A. The possibility of an event or outcome happening contingent on the occurrence of a prior event or outcome is known as conditional probability.

What Sets Conditional Probability Apart from Regular Probability?

The probability of one event happening is examined in probability. The relationship between two occurrences that could happen is examined through conditional probability.

Based on the likelihood that the first event will occur, the probability of the second event happening is examined. The likelihood of the preceding event is multiplied by the probability of the subsequent, or conditional, occurrence to determine the conditional probability.

Conditional probability examines the likelihood of a single event.

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A mixture of juices in a punch had 1.1 L of pineapple juice for every 0.4 L of orange juice. Sarah wanted the punch to taste more orangey, so she added 0.3 L of orange juice but no pineapple juice. Now the ratio of juices was 1.1 L of pineapple juice for every 0.5 L of orange juice. How many litres of punch did Sarah have now

Answers

The litres of punch with Sarah is 4.8 L.

The mixture of juices in the punch had 1.1 L of pineapple juice for every 0.4 L of orange juice.

The ratio of the amount of pineapple juice to the orange juice is 1.1:0.4.

The initial amount of pineapple juice is 1.1x.

The initial amount of orange juice is 0.4x.

The amount of orange juice added to the punch is 0.3 L.

The new ratio of the amount of pineapple juice to the orange juice is 1.1:0.5.

The final amount of pineapple juice is 1.1x.

The final amount of orange juice is 0.4x + 0.3.

(1.1x)/(0.4x + 0.3) = 1.1/0.5

0.5x = 0.4x + 0.3

0.1x = 0.3

x = 3

The amount of punch Sarah has now is the total amount of pineapple and orange juice.

The amount of punch is given below :

A = 1.1x + (0.4x + 0.3)

A = 1.5x + 0.3

A = 1.5(3) + 0.3

A = 4.5 + 0.3

A = 4.8

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The size of a cell is typically found by capturing an image under a microscope then
using software to measure its diameter. Two cells are measured using this method:
Cell H: 3.52 x 10-3 centimeters
Cell K: 9.1 x 10-4 centimeters
How many times larger is the diameter of cell H than the diameter of cell K? Write
your answer in standard notation, rounding to the nearest tenth.

Answers

The diametric size of cell H is 3.86 times larger the diametric size of cell K.

How is a ratio determined?
Majority of the explanations for ratio and proportion use fractions. A ratio is a fraction that is expressed as a:b, but a proportion says that two ratios are equal. In this case, a and b can be any two integers. A ratio is a comparison or condensed version of two quantities of the same type. We may determine how many times one quantity is equal to another using this relationship. The ratio can be defined as the number that can be used to represent one quantity as a percentage of another.

Given, the diametric size of cell H, say y = 3.52×10⁻³ cm
The diametric size of cell K, say x =  9.1×10⁻⁴ cm = 0.91×10⁻³ cm
The ratio of the diametric size of H to K, y/x = 3.52×10⁻³/0.91×10⁻³ = 3.86
Thus, y = 3.86x, the diametric size of cell H is 3.86 times the diametric size of cell K.

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you are analyzing data from a study comparing the effect of 3 different antihypertensive medications (red, blue, and purple) on mean arterial blood pressure. subjects were randomized to treatment, but after randomization those who got the red pill are significantly older, and age is correlated with mean arterial blood pressure. what test will allow you to analyze the differences in blood pressure between groups, after adjusting for age

Answers

The test that will allow you to analyze the differences in blood pressure between groups, after adjusting for age is the one way ANOVA test.

What is the test about?

One-way analysis of variance is a statistical approach that can be used to determine if the means of two samples are substantially different or not. One-way ANOVA ("analysis of variance") examines the means of two or more independent groups to see if there is statistical evidence that the related population means differ significantly.

One-way ANOVA is commonly employed when there is a single independent variable, or factor, and the purpose is to determine whether fluctuations or various amounts of that factor have a measurable effect on a dependent variable. This van be used to illustrate the relationship.

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Use the figure below and the given information for Questions #5, #6 and #7

Answers

ANSWER

18.1

EXPLANATION

AC is the shortest leg of triangle CAD. The hypotenuse is AD = 30 and AC is the opposite leg to the given angle, m∠ADC = 37°.

We can find the length of side AC using the sine of the given angle,

[tex]\begin{gathered} \sin 37\degree=\frac{AC}{AD} \\ \\ \sin 37\degree=\frac{AC}{30} \end{gathered}[/tex]

Solving for AC,

[tex]AC=30\sin 37\degree=18.1[/tex]

Hence, the length of AC is 18.1.

somebody please help me


3) Circle each expression that is equivalent to 16

× 29 29 sixteens
16 × (30 - 1)
(15-1) × 29
X (10 × 29) - (6 × 29)​

Answers

The answer is 61 because it is the correct one

solve each equation using an array 3542 x 8 =

Answers

The Solution:

We are required to Use the array strategy to multiply the numbers given below:

[tex]3542\times8[/tex]

Therefore, the correct answer is 28,336

2 1/3 x 2/4 show our work

Answers

21/3*2/4=42/12
=3,5(reduce fractions)
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