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3 years ago

If f(r)= 3.14 r^2 what is f(3)

Mathematics

1 answer:

KIM [24]3 years ago

6 0

Answer:

f(3) = 28.26

Step-by-step explanation:

Substitute r = 3 into f(r) , that is

f(3) = 3.14 × 3² = 3.14 × 9 = 28.26

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At least 3 units away from negative 1 (plot point)

asambeis [7]

Answer:

Positive 2 or Negative 4

Step-by-step explanation:

If this is on a number line

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2 years ago

Read 2 more answers

What is the solution to the equation below? Round your answer to two

noname [10]

Answer:

D. x=5

The answer is x=4.50 then it is rounded off to 5. So, the answer is 5.

Step-by-step explanation:

Find the domain of the inequality: $2x-1\geq 0$

Rearrange terms to the left side of the equation: $2x\geq 1$

Divide both sides of the inequality by the coefficient of the variable:

=> $x\geq \frac{1}{2}$

The domain of the inequality is: $x\geq \frac{1}{2}$

Convert logarithm to exponential form: $2^{3}=2x-1$

Calculate the power: $8=2x-1$

Rearrange terms to the left side of the equation: $-2x= -8-1$

Calculate: $-2x=-9$

Divide both sides of the equation by the coefficient of the variable: $x=\frac{-9}{-2}$

=> $x=\frac{9}{2}$

=> $x=4.5\\$

Round the number: $x=4.50$

Answer: $x=4.50$

=> $x=5$

Read to know more about log equation:

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5 0

2 years ago

Betty has several of the standard six-sided dice that are common in many board games. If Betty rolls one of these dice, what is

diamong [38]

Since she is rolling 1 six sided dice the chances of her rolling a 3 are 1:6 because, she is trying to land on 3 not 3 numbers.

7 0

2 years ago

Simplify. [3 • (3 – 9)] + 9

Marat540 [252]

Answer:

(9-27)+9

=-18+9

=-9 is the answer

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2 years ago

How will the volume of the pyramid change if each side is multiplied by a factor of .5

kupik [55]

It will expand. Or it will grow.

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3 years ago