The area of a circle is 161 in. What is the radius?​

Answers

Answer 1

Answer:

Approximately 7.16 in

Step-by-step explanation:

Hi there!

Area of a circle equation: [tex]A=\pi r^2[/tex] where r is the radius

Plug in the given area 161 in.²

[tex]161=\pi r^2[/tex]

Divide both sides by π to isolate r²

[tex]\frac{161}{\pi} =\frac{\pi r^2}{\pi} \\\frac{161}{\pi} =r^2[/tex]

Take the square root of both sides to isolate r

[tex]=r^2\\\sqrt{\frac{161}{\pi}} =r\\7.16=r[/tex]

Therefore, the radius of the circle is approximately 7.16 in.

I hope this helps!


Related Questions

The area of a parallelogram can be found by the
equation area = (b)(h)
Find the height of a parallelogram that has an area of
10 2 in2 and a base of Ži in.
SET
The height of the parallelogram is
inches.
I NEED THE ANSWE ASAP

Answers

The height = (7/2)

You take the answer and divide it by the base to get the height.
Same thing for base. You divide the answer by the height to get base.

Answer:

14

Step-by-step explanation:

just did it (don't search up mr hands)

Glenn bought a game system and 3 video games for $375. Jim bought a game
system and 4 video games at the same store for $410.
• Each game system costs the same.
• Each video game costs the same.
What is the cost, in dollars, of one game system?
Enter your answer in the box.
$

Answers

Answer:

mcas ikr- $270 per game system (35 per game)

Step-by-step explanation:

solves system

The probability for event A is 0.4, the probability for event B is 0.2, and the probability of events A and B is 0.1.

Why are the events not independent?

The sum of P(A) and P(B) is greater than P(A and B).
The product of P(A) and P(B) is greater than P(A and B).
The product of P(A) and P(B) is not equal to P(A and B).
The sum of P(A) and P(B) is not equal to P(A and B)

Answers

Answer:

the correct answer is the product of PA) and P(B) is not equal to P(A and B)

A designer builds a model of a sports car. The finished model is exactly the same shape as the original, but smaller. The scale factor is 2:15

Answers

Answer:

[tex]Ratio = 2 : 15[/tex]

Step-by-step explanation:

Given

[tex]k = 2 : 15[/tex] --- scale factor

Required [missing from the question]:

The ratio of width of the model to the original

From the question, we understand that the scale factor is: 2 : 15

The ratio of the width of the model to the original equals the given scale factor i.e.

[tex]Ratio = 2 : 15[/tex]

estimate a 15% tip for a 19.80 meal.

Answers

the tip would equal $ 2.97.

19.80 x 0.15 = 2.97

Answer:

$3.00

Step-by-step explanation:

The tip would equal to $2.97 so the answer is $3.00 that is your estimate

4 divided by 1/3=___

Answers

Answer:

12

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

Write an equation of the line that contains
point (3,-1) and is parallel to the equation
y+3x=2.

Answers

y-(-1)=3(x-3)->y+1=3x-9->y=3x-10 so y=3x-10 is your new line

What is -5+56<1 please and thank you

Answers

False hope that was it that’s what I got

find the cosine ratio of angle Θ.

Answers

Answer:

8/17

Step-by-step explanation:

Cosine is adjacent over hypotenuse (CAH as in SOH CAH TOA) so the ratio would be 8/17

8/17
I think the person above is right

please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!

Answers

78.87. I got the same answer as the first person, kudos to you :)

which is the solution to the inequality y - 27 - 13

Answers

Answer:

-40

Step-by-step explanation:

y−27−13

=y+−27+−13

Combine Like Terms:

=y+−27+−13

=(y)+(−27+−13)

=y + −40

Identify a, b and c in the quadratic equation.

-x2 + 31x + 7 = 0

Answers

Answer:

a is -1

b is 31

c is 7

Step-by-step explanation:

-x^2+31x+1=0

ax^2+bx+c=0

Please help me with this one??

Answers

Answer:

Y =-25x +225

Step-by-step explanation:

First you can count the gradient first. Use then you can count y intercept

ASAP WILL GIVE BRAILIEST!!!

Answers

Answer:

Step-by-step explanation:

6^10 can also be written as

b.6^8.6^2

6^8+2

610

d.(6^10)^1

6^10*1

6^10

Answer:

B and d are correct because does are the only two that equal 6^10 ( or 60466176 )

Step-by-step explanation:

Question 9 The spinner pictured is spun 100 times and lands in sector A 40 times. What is the experimental probability of the spinner landing on the sector labeled A? NEED ANSWER ASAP FOR A TEST

Answers

40/100 because I just took the test

what is the value of (-35) divided by (5/7)?

Answers

Answer:

-49

Step-by-step explanation:

Reduce the expression, if possible, by cancelling the common factors.

Brainliest for correct answer! :)

Answers

Answer:

Mode: 44 (mode is biggest number)

Mean: 30 (the average between numbers)

Step-by-step explanation:

Calculating the Mean

44 + 43 = 87

25 + 8 = 33

87 + 33 = 120

120 + 30 = 150

150/5 = 30

PLEASE PLEASE HELP I REALLY NEED THIS!! THANK YOU
Simplify the scale factor and write it as a proper fraction, improper fraction, or whole number.

Answers

Answer:

12 right 6 up (12,6) and 3:1 or 3

Step-by-step explanation:

What is the m_ACB?
O 10°
B.
0 50°
(4x)
O 90°
O 180°
(7x-20)
С

Answers

Answer:

180

Step-by-step explanation:

90 + 4x + 7x - 20 equals to 180

Answer:

B. 50

Step-by-step explanation:

what is the solution of 1

Answers

There is no picture

help!! What is 78,400,000 expressed in scientific notation?
A. 78.4 x 10
B. 7.84 x 10
C. 78.4 x 10
D. 784 x 10

Answers

It's b the number multiplied by 10 must be less than 10

Find the indicated limit, if it exists.

Answers

Answer:

[tex]\displaystyle \lim_{x \to -8} f(x) = 1[/tex]

General Formulas and Concepts:

Calculus

Limits

Limit Rule [Constant]:                                                                                             [tex]\displaystyle \lim_{x \to c} b = b[/tex]

Limit Rule [Variable Direct Substitution]:                                                             [tex]\displaystyle \lim_{x \to c} x = c[/tex]

Limit Property [Addition/Subtraction]:                                                                   [tex]\displaystyle \lim_{x \to c} [f(x) \pm g(x)] = \lim_{x \to c} f(x) \pm \lim_{x \to c} g(x)[/tex]

Step-by-step explanation:

*Note:

When you graph the function, the left-hand and right-hand limit does equal the same.

Step 1: Define

[tex]\displaystyle f(x) = \left \{ {{x + 9, x < -8} \atop {-7 - x, x \geq -8}} \right.[/tex]

Step 2: Find Limit

Substitute in function [Limit]:                                                                        [tex]\displaystyle \lim_{x \to -8} f(x) = \lim_{x \to -8} (-7 - x)[/tex]Evaluate limit [Limit Rule - Variable Direct Substitution]:                           [tex]\displaystyle \lim_{x \to -8} f(x) = -7 - (-8)[/tex]Simplify:                                                                                                         [tex]\displaystyle \lim_{x \to -8} f(x) = 1[/tex]

Topic: AP Calculus AB/BC (Calculus I/I + II)

Unit: Limits

fid the log of 0.0007356​

Answers

Answer: 2.1333582794

Step-by-step explanation:

The base 10 logarithm of 0.007356 is -2.1333582794

log₁₀(0.007356) = -2.1333582794

Find the measure of the missing angle.
A
43°
Help ASAP plz

Answers

Answer:

47

Step-by-step explanation:

The missing angle is complementary to the angle shown and together they from 90.

Your missing angle is 90 - 43

price of a
the
of a microwave
Loven was marked down
from $187.50 to $150.00.
what
was the percent
decrease in price.

Answers

Answer:

20%

Step-by-step explanation:

$187.50 - 20% = $150.00

Answer each question and round your answer to the nearest whole number

Answers

Answer:

New width = 12 in.

Step-by-step explanation:

Original height = 2 in.

Original width = 3 in.

New height = 8 in.

New width = x = ?

The shape of the original painting and the shape of the new painting are similar, therefore, the ratio of their corresponding linear measurement will be equal.

Thus:

New height/original height = new width/original width

8/2 = x/3

Cross multiply

2x = 3*8

2x = 24

2x/2 = 24/2

x = 12

New width = 12 in.

Niveen makes muffins and sells them for $0.65 each. To make 12 muffins, she must spend $5.25 on muffin mix, $0.75 on vegetable oil, and $0.87 on eggs. The smallest batch of muffins Niveen can make is 12 muffins.

what would result in Niveen earning a profit?

Answers

Answer:

selling 36 muffins at a discount rate of 10% off the original price

Step-by-step explanation:

To print tickets, a printer charges a $30 setup fee plus $1.05 per ticket. Write an algebraic expression for the cost of t tickets. What is the cost of 300 tickets?

an explanation 2 plz thx

Answers

Answer:

Solution given:

we have

setup price =$30

as rate for 1 print tickets =$1.05/tickets

so

for t

t=$30+$1.05*t

is a required expression.

the

cost of 300 tickets:

300 tickets =$30+$1.05*300=$345

$345is the cost of 300 tickets.

The function y=15,000(1.10)xmodels the cost of annual tuition at a local college, x years after 2000. How much will tuition be in 2025?

Answers

Answer: [tex]162,520.588[/tex]

Step-by-step explanation:

Given

The function [tex]y=15,000(1.1)^x[/tex] models the cost of tuition fees after year 2000

In year 2025 that is 25 years after 2000, fees can be given as

[tex]\Rightarrow y=15,000(1.1)^{25}\\\Rightarrow y=15,000\times 10.834\\\Rightarrow y=162,520.588[/tex]

Thus, the fees in year 2025 is [tex]162,520.588[/tex].

-2x + 3y = 18. x = -y + 1

Answers

Answer:

D. X=-3, y=4

Step-by-step explanation:

-2x+3y=18 equation 1

x=-y+1 equation 2

-2(-y+1)+3y=18 replace x value of equation 2 into equation 1

2y-2+3y=18

5y=20

y=4

solve for x by replacing y value into either equation.

x=-y+1

x=-4+1

x=-3

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