help with the Area of a circle

Help With The Area Of A Circle

Answers

Answer 1

Answer:

A = 201.06 units²

A = 78.54 units²

Step-by-step explanation:

Formula for area of a circle = πr²

✔️Area of the first circle:

r = ½(d) = ½(16)

r = 8

Area = π*8² = π*64

Area = 201.06 units²

✔️Area of the second circle:

r = 5

Area = π*5²

= π*25

Area = 78.54 units²


Related Questions

1. Which point is a solution to this system of equations? 3х - у = 7 and 2x + 3y = 1​

Answers

9514 1404 393

Answer:

  (x, y) = (2, -1)

Step-by-step explanation:

A graphing calculator can find a solution quickly. (see attached)

__

The first equation can give an expression for y:

  y = 3x -7

We can substitute this into the second equation:

  2x +3(3x -7) = 1

  11x -21 = 1 . . . . . . simplify

  11x = 22 . . . . . . . add 21

  x = 2 . . . . . . . divide by 2

  y = 3(2) -7 = -1 . . . . using our equation for y

The solution is (x, y) = (2, -1).

x raise to the fourth power three times

Answers

Answer:

If you mean multiply by three when you say “three times”, then 3.

If you mean 1 to the third power when you say “three times”, then 1.

Step-by-step explanation:

1 x 1 x 1 x 1=1 is 1 to the fourth power.

If you mean multiply by three when you say “three times”, then 1x3=3.

If you mean 1 to the third power when you say “three times”, then 1x1x1=1.

Can someone help me find the median first quartile second quartile third quartile and the interquartile range
for the questions
4.
5.
6.
7.

Answers

4) Q1. 24
Q3. 37.5
IQR. 13.5
M. 28

5) Q1. 54.5
Q3. 61.5
IQR. 7
M. 59

6) Q1. 73.5
Q3. 82
IQR. 6.5
M. 76

7) Q1. 107
Q2. 125
IQR. 18
M. 118

cow is tied to a tree on grazing land with a 9 -meter rope What is the longest distance around that it can cover ?​

Answers

Radius = 9m
Diameter = 18 m
Area = 254.34 squared m
Circumference = 56.52 m

I’m guessing is asking for the circumference because it says around

Gift wrappers tend to have competitions on who can wrap more presents in a day. If Benjamin wrapped 9 less presents than Christopher, who wrapped x presents, choose the expression that shows how many presents Benjamin wrapped.​

Answers

Answer:

x-9.

the expression that shows how many presents benjamin wrapped would be x-9

where does f(x) and the line y=1 intersect? ​

Answers

Line intersects at (4,1)

How to do y=5x+2 and 3x=-y+ 10

Answers

answer:
y = 5x + 2
5 is the slope 2 is the y-intercept
3x = -y + 10 turns into y = -3x + 10
-3 is the slope 10 is the y-intercept
they intersect at (1, 7)

step-by-step explanation:
I’m not sure what you are wanting me to do with these but i will give you all the information about them
y = 5x + 2 is already in slope-intercept form
5 being the slope and 2 being the y-intercept
to solve for 3x = -y + 10
-3x+y +y-3x
y = -3x + 10
the slope is -3
the y-intercept is 10
they intersect at (1, 7)

Part E: What is the interquartile range for the data in Table 3 (Number of Siblings)?
this is pass due pls help!!!!

I highlighted the table needed to complete this question:

Answers

Answer:

14.85

Step-by-step explanation:

Answer:

The correct answer is 2

Step-by-step explanation:

I already did this assignment. Its the upper quartile minus the lower quartile so it literally cannot be 14.85.

What is the exponent for 4.4.4.4=?

Answers

Answer:

the answer is four to the the power of four

Step-by-step explanation:

how, well because the main number there is four and the the amount is four so there's your answer

The exponent for 4.4.4.4 = 4^4

What is exponent?An exponent of a number is the number of times the number is multiplied to itself. For example, 10 is multiplied for n times by itself can be expressed as 10^n.For any number x raised to the power n can be expressed as x^n = x.x.x....x (n times) = x^nIn x^n, x is called base and n is called exponent otherwise index or power of x.In short,Exponentation is the shortest method for repeated multiplication.

It is given that 4.4.4.4

Here 4 is multiplied repeatedly by the number itself. So we use exponentation.

Base is 4 and exponent is 4

Therefore, the exponent for 4.4.4.4 is 4^4

Learn more about exponent here:

https://brainly.com/question/11975096

#SPJ2


Write the fraction that represents the amount of candy bar each person would get when sharing three candy bars equally among seven
people.

Answers

Answer:

I think the answer is 1 2

5

#11. The space occupied by a wooden block is 4cm × 2cm × 2cm=_____cm 3 Which is equivalent to_______mililiters​

Answers

Answer:

Solution given;

The space occupied by a wooden block is 4cm × 2cm × 2cm=_16__cm 3 Which is equivalent to____16___mililiters

Step-by-step explanation:

we have

1cm³=1millilitre.

Find the missing number in this function table.

Answers

Answer:

25

Step-by-step explanation:

2(13)-1=25

Answer:

25

Step-by-step explanation:

Using the equation given, 2x-1, you can plug in x, which is given in the table, and solve.

13 is given for x so you plug 13 into 2x-1;

2(13)-126-125

you can then check your answer to make sure you did it correctly by plugging in another x number (such as 4) and checking to see if you get the same number as the one given.

How many solutions does the equation 6z − 3z − 7 = −2 + 3 have?

Two
None
Infinitely many
One

Answers

There could only be one aolition

there can only be 1 solution to the equation

Double checking but is this A

Answers

Answer:

si

Step-by-step explanation:

si


pleaseehehhehe bellopppp

Answers

It’s A your welcome

Answer:

A is right

Step-by-step explanation:

What properties and conventions do I need to understand (and be able to apply) in order to simplify and evaluate algebraic expressions?

Answers

Answer:

So there are alot of various properties that could be used to solve different kinds of algebraic expressions. To solve a simple algebraic equation, most of the times u need to know the, addition, subtractions properties as well as division and multiplication division property.

Hope this helps!

Olivia's team played 8 games of basketball. During those 8 games her team's score was: 70, 67, 79, 66, 64, 80, 64 and 75. Find the median.

Round to the nearest TENTH.

Answers

Answer:

70

Step-by-step explanation:

First put it to least to greatest- 64, 64, 66, 67, 70, 75, 80

Then find the median which is the number in the middle

Round it so it gives us are answer of 70

40 PTS ! The length of the rectangle is 2 ft more than its width. The area of the rectangle is 80 square feet. Find the width of the rectangle.

Answers

Answer:

The length of a rectangle is 2 feet more than it's width. How do you find the dimensions of the rectangle if its area is 63 square feet?

Step-by-step explanation:

x(x+2) = 63

x^2 + 2x = 63

x^2 + 2x - 63 = 0

Quadratic formula with numbers plugged in: (-2 +or- sqrt(4 - 4* 1 * -63))/2 becomes

-2 +or- sqrt(256)/2 so (-2 +or- 16)/2 therefore -18/2 or 14/2. Discard negative result.

x = 7. 63/7=9. Sides are 7ft and 9ft.

Answer:

8 ft

Step-by-step explanation:

Given

The length l = w + 2The area  lw = 80

Substitute l and solve the following for w:

w(w + 2) = 80w² + 2w = 81w² + 2w + 1 = 81(w + 1)² = 9²w + 1 = 9w = 8

The width is 8 ft

HELP I NEED TO DO THIS NOW NO LINKS THEY WOULD BE REPORTED JUST TELL ME WHAT I NEED TO PUT

Answers

gonna assume it’s 3x so, 1-3, 2-6, 4-12, 5-15

Two bonds are available on the market as follows: Bond 1: Face value $250, 5 years to maturity at a simple interest rate of 5%. Bond 2: Face value $350, 3 years to maturity at a simple interest rate of r. Given that both bonds yield the same interest at maturity, calculate r. Round your answer to the nearest hundredth of a percent. Do NOT round until you have calculated your final answer.

Answers

Answer:

5.95%

Step-by-step explanation:

Bond 1:

I = 250(.05)5

I = $62.50

Bond 2:

62.5 = 350(3)r

62.5 = 1050r

r = 62.5/1050

r = 5.95%

Answer:

5.95%

Step-by-step explanation:

please help, I’ll give brainliest to anyone who gets it’s right:) if you send a link, I’ll report sorry! :(

The figures below show the populations of 25 cities randomly selected from the 200 largest
cities in each of two countries. Based on these samples, about how much larger is the
median population of China's 200 largest cities than the median population of India's 200
largest cities?

Answers

Answer:

600 000

Step-by-step explanation:

took the same test nav

Can anyone help? I’ll give Brainly.. thank you

Answers

Answer: 50

Explanation;

A large corporation sent out four groups of people to conduct observational studies on the average wait time at four different restaurants in its restaurant group. The restaurants have approximately the same ratings in terms of quality and popularity.

In their reports to the company board, each of the four groups described different methods used to conduct their studies, as shown in the table. Which group’s method will give the most accurate, unbiased results?

Answers

Answer:

It's midwest

Step-by-step explanation:

Midwest's groups will give the most accurate, unbiased results, and the correct option is B.

To solve this question, we analyze each sample, and find which of them will give the most accurate results.

Northeast: Only 3 hours a day, which can either have a very low or very high wait time, not being a correct representation, so there are bias factors.West Coast: One full day, which also can be a day with a lot of demand, leading to high wait time, or a day with low demand leading do low demand time, so there are also bias factors.South: Phone survey is not very accurate, people may not remember, for example.Midwest: Consider lots of periods over the course of the week, thus surveying both periods of low and of high demand, to get a good estimate for the average time, not having bias factors.

Thus, the Midwest's groups will give the most accurate, unbiased results, and the correct option is B.

A similar example is given here:  https://brainly.com/question/16609573

NEED HELP ASAP! brainlist... A rectangular feild has a perimeter of 100 feet. Its length is 20 feet longers than its width. What are the dimensions of the feild?

answers:
15 ft by 35 ft
20ft by 30ft
35ft by 55ft
40ft by 60ft​

Answers

Answer:

15 ft by 35 ft

Step-by-step explanation:

15 + 15 + 35 +35

=100 ft

Answer:

Perimeter = 2 × (length + width) -------(1)

Let width be w

Given length is 20ft longer than width, L = 20 + w

substitute L and w in (1)

perimeter = 2× ( 20 + w + w)

100 = 2 ×(20 + 2w)

50 = 20 + 2w

30 = 2w

w= 15feet

L = 20 + w = 20 + 15 = 35feet

option 1)  15 ft by 35ft

Look at the two patterns below: Pattern A: Starts from 4 and follows the rule "add 9" Pattern B: Starts from 4 and follows the rule "add 5" Select the statement that is true. (4 points) Group of answer choices The first five terms in Pattern A are 4, 13, 22, 31, 40. The first five terms in Pattern B are 0, 4, 9, 14, 19. The terms in Pattern A are 2 times the corresponding terms in Pattern B. The terms in Pattern B are one fifth the corresponding terms in Pattern A.

Answers

Answer:b

Step-by-step explanation:

The terms in Pattern B are one third the corresponding terms in Pattern A.

The right triangle on the right is a scaled copy of the right triangle on the left. Identify
the scale factor. Express your answer in simplest form

Answers

Answer:

scale factor = [tex]\frac{34}{39}[/tex]

Step-by-step explanation:

The scale factor is the ratio of corresponding sides, image to original.

scale factor = [tex]\frac{34}{39}[/tex]


An angle measures 10° more than the measure of its complementary angle. What is the
measure of each angle?

Answers

Answer:

50 and 40

Step-by-step explanation:

Complimentary angles must add up to equal 90 degrees. Therefore, you must find two numbers that add to 90 and have a difference of 10. Try different number values until this is true. One must be 50 and the other 40 degrees.

A circus acrobat is shot out of a cannon with an initial upward speed of 50 . The equation for the acrobat's pathway can be modeled by the equation h = - 16t ^ 2 + 50t + 4 .
a.Find the maximum height of the acrobat.

b.How long will it take to reach the ground?

Answers

Answer:

Step-by-step explanation:

h = - 16t ^ 2 + 50t + 4

maximum height  take the first derivative of h (calculus if you are taking it)

h' = -32t + 50          set this equal to zero

0 = -32t +50

t = 50/32

t = 1.5625      now plug t = 1.5625  into the height equation

h = - 16(1.5625) ^ 2 + 50(1.5623) + 4

h = 43.0625 ft

you can also find the maximum height by graphing the function and locating the peak value  (much easier)

how long to reach the ground  h = zero

0 = - 16(t) ^ 2 + 50(t) + 4

use the quadratic equation to solve this or graph the function h(t) and find the roots (much easier) and you will find that

t = -0.078 and 3.203 seconds

    obviously the negative root makes no sense unless he time travelled so

t = 3.203 seconds

The area of a circle is pi square centimeters. What is the diameter? Please help!!!!

Answers

Answer:

Radius of the circle = 1 centimeter.

Step-by-step explanation:

Expression that represents the area of a circle,

Area = πr²

Here, r = Radius of the circle

Area of the circle given = π square centimeters

πr² = π

r² = 1

r = 1

Therefore, radius of the circle is 1 centimeter.

Plz help me well mark brainliest if correct!!...

Answers

9514 1404 393

Answer:

  B)  fifth grade boys

Step-by-step explanation:

55 tickets is halfway between the lines marked 50 tickets and 60 tickets. The bar that comes closest to that value is the right-most green bar, representing ...

  fifth-grade boys

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