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3 years ago

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the area of one circle is 9 times as great as the area of another. If the radius of smaller circle is 3, find the radius of larg

er circle.

1 answer:

Lunna [17]3 years ago

4 0

Make the larger circle A and the smaller circle B or any other letters so you can find it less confusing. hope this helps

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Simplify.Your answer should contain only positive exponents.

zhannawk [14.2K]

Step-by-step explanation:

1) $r^3r^3$

$\mathrm{Apply\:exponent\:rule}:\quad \:a^b\cdot \:a^c=a^{b+c}$

$=r^{3+3}$

$=r^6$

2) $3k^3k^3$

$\mathrm{Apply\:exponent\:rule}:\quad \:a^b\cdot \:a^c=a^{b+c}$

$=3k^{3+3}$

$=3k^6$

3) $\left(3b^2\right)^3$

$\mathrm{Apply\:exponent\:rule}:\quad \left(a\cdot \:b\right)^n=a^nb^n$

$=3^3\left(b^2\right)^3$

$=27\left(b^2\right)^3$

$=27b^6$

4) $\left(2m^3\right)^3$

$\mathrm{Apply\:exponent\:rule}:\quad \left(a\cdot \:b\right)^n=a^nb^n$

$=2^3\left(m^3\right)^3$

$=8\left(m^3\right)^3$

$=8m^{3\cdot \:3}$

$=8m^9$

5) $\frac{3r^3}{r^2}$

$\mathrm{Apply\:exponent\:rule}:\quad \frac{x^a}{x^b}=x^{a-b}$

$=3r^{3-2}$

$=3r^1$

$=3r$

3 0

3 years ago

32 FL. oz =_____c helpp

BigorU [14]

Answer:

4 cups

Step-by-step explanation:

There are 8 fl. oz in a cup. 32 divided by 8 is 4. Hope it helps!

4 0

3 years ago

Santiago has p peppermints. Mitchell has 63 fewer peppermints than Santiago. Write an expression that shows how many peppermints

Ksju [112]

P-63 ...........................

4 0

3 years ago

In a fruit cocktail, for every 20 ml of orange juice you need 10 ml of apple juice and 15 ml of coconut milk. What proportion of

tresset_1 [31]

Since you have to mix all of it together, the whole cocktail is 20+10+15=45.
And the portion that is coconut milk is 15ml. So that means there is 15 out of 45 or 15/45 coconut milk in the cocktail. Then the simpelest form is 1/3.

6 0

3 years ago

Read 2 more answers

2 number cubes are rolled what is the probability that the sum if the numbers rolled is either a 4 or a 10

goldenfox [79]

With 2 cubes, there are 3 ways to roll a sum of 4... 1 and 3, 3 and 1, 2 and 2.
with 2 cubes, there are 3 ways to roll a sum of 10....6 and 4, 4 and 6, 5 and 5.

total possible outcomes = (6 * 6 ) = 36

probability of this happening is 6/36 reduces to 1/6

4 0

4 years ago