1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mrac [35]
3 years ago
8

What is the radius of 81π square inches​

Mathematics
1 answer:
MrRa [10]3 years ago
3 0
It is 9 inches because the formula for the area of a circle is πr2 where the r represents the radius of the circle

The pi can be canceled out =

πr2 and 81 π leaving with

R2 and 81

The r2 represents a square number. So square root 81 and you would result in 9 as your answer
You might be interested in
I don’t understand this
SashulF [63]

Answer:

9 to the 5th power

Step-by-

7 0
3 years ago
Read 2 more answers
What is an exact solution for <br><img src="https://tex.z-dn.net/?f=m%20%5Csqrt%7B14%7D%20" id="TexFormula1" title="m \sqrt{14}
AlexFokin [52]

Answer: Choice B)  \sqrt{14}

We have some value m and we're squaring it to get m^2

To undo this and isolate m, we apply the square root to both sides

m^2 = 14\\\\\sqrt{m^2} = \sqrt{14}\\\\|m| = \sqrt{14}\\\\m = \sqrt{14} \text{ or } m = -\sqrt{14}

There are two solutions here. This is similar to how there are two solutions in something like x^2 = 25 (those two solutions being x = 5 and x = -5). Squaring any negative number leads to a positive result because

negative times negative = positive.

8 0
3 years ago
Lara created a 15-pound platter of three different types of cookies for a banquet. The peanut butter cookies sell for $2 per pou
Bond [772]

Answer:

peanut butter cookies:8

sugar cookies:2

chocolate chip cookies:5

ratio: 4:1:2.5

Step-by-step explanation:

x=peanut butter cookies

y=sugar cookies

a=chocolate chip cookies

40=2x+3y+3.6a

15=x+y+a

x=a+3

15=(a+3)+y+a

y=12-2a

40=2(a+3)+3(12-2a)+3.6a

a=5

x=8

y=2

5 0
3 years ago
Select the favorable Outcomes for rolling double sixes
ira [324]
We want double sixes. This means that we want both the first roll and the second roll to be 6.

The given point is given as (r1 , r2) where:
r1 is output from first roll
r2 is output from second roll

Since we want both outputs to be 6, therefore, the answer would be: (6,6)
4 0
3 years ago
7925 divided by 72. It keeps coming out wrong as I do it so I need help
emmainna [20.7K]

Answer:

110 R 5

Step-by-step explanation:

plz plz plz give brainlyest

4 0
2 years ago
Read 2 more answers
Other questions:
  • MO bisects angle LMN, angel LMO = 6x-20.angle NMO= 2x+32 find angle LMN?
    13·1 answer
  • Identify the roots of the quadratic function.
    14·2 answers
  • Isaak is writing an explicit formula to represent the sequence.
    15·2 answers
  • Can anyone tell me how to solve x+62234*345x+546? Thanks! I will be doing brainliest answer too.
    10·1 answer
  • Round 149,640 to the nearest thousand.
    14·2 answers
  • The unit rate for peaches is $2.00 per pound. The unit rate for grapes is $2.50 per
    15·2 answers
  • Drew has 4 pieces rope 1 meter long each. He cuts each rope into fifths. How long will each of the fifths be in centimeters?
    6·1 answer
  • 1 + 1 - 1 = ?<br> For fun- <br> .........
    8·2 answers
  • Just need help on 29
    7·1 answer
  • PLEASE HELP ASAP WILL GIVE BRAINLIST!!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!