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melamori03 [73]
3 years ago
11

Solve for r: B=dPIEr^2

Mathematics
1 answer:
lisabon 2012 [21]3 years ago
3 0

Answer:

C

Step-by-step explanation:

So we have the equation:

B=d\pi r^2

And we want to solve for r.

So first, isolate the r variable. Divide both sides by dπ. So:

\frac{B}{d\pi}=\frac{d\pi r^2}{d\pi}

The right side cancels:

\frac{B}{d\pi}=r^2

Take the square root of both sides:

r=\sqrt\frac{B}{d\pi}

We can rearrange the terms:

r=\sqrt\frac{B}{\pi d}

Our answer is C.

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nata0808 [166]
<h3>Given:</h3>

Fifteen more than z times 6 is 11 less than y times 2

<h3>Solution:</h3>

Fifteen more than z times 6 = 6z + 15

11 less than y times 2 = 2y - 11

<h2>Answer:</h2>

6z + 15 = 2y - 11

7 0
3 years ago
Find the midpoint M of the line segment joining the points P = (-8, 3) and Q = (-2, -7).
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Answer:

Step-by-step explanation:

Let (x,y) be midpoint of P(3,4) & Q(5,−2)

Midpoint formula for two points (a,b) and (c,d) is

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​

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7 0
2 years ago
What is 20% of 96,000 in math?
AVprozaik [17]
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just multiply 0.2 x 96,000
4 0
3 years ago
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A new automobile cost 11300 which is 100 more than 25 times a certain number what is the number​
olga_2 [115]

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3 0
3 years ago
Subtract 7a<br><br>2<br><br>-4ab+2b<br><br>2<br><br>from 3ab+7a2+2b2
LUCKY_DIMON [66]

Answer:

Step-by-step explanation:

3ab + 7a² + 2b² - (7a² - 4ab + 2b²) = 3ab + 7a² + 2b²  - 7a² + 4ab - 2b²

Now combine like term. Like terms have same variable with same power.

= <u>3ab + 4ab</u>  <u>+ 7a² - 7a²</u>  + <u>2b² - 2b²</u>

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2 years ago
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