2 years ago

I'm not sure how to solve this problem. I get none of the answers

2 answers:

7 0

Area of base = 9pi
curve surface area = 3*pi*15=45pi
total area 54pi
i guess the n here represents pi the answer would just be a since its the most relevant

Svetradugi [14.3K]2 years ago

7 0

Surface are of a cone = (pi)r(r + l)
r=3, l=15 ... n is not needed
what's n anyway?

You might be interested in

What fractional part of the day do you spend sleeping if you sleep 8 hours?

fomenos

You sleep 1/3 of the day.

5 0

2 years ago

Write an equation to find the number. Solve. Twenty-four less than 4 times a number is equal to 30 more than -2 times the number

Amanda [17]

4x - 24 = -2x + 30

4x + 2x = 30 + 24
6x = 54
x = 9

answer: the number is 9

5 0

3 years ago

Read 2 more answers

2. The electrical resistance R of a wire varies inversely with the square of its diameter d. If a wire with a

Mariulka [41]

Answer:

$0.225 \Omega =225 m\Omega$

Step-by-step explanation:

We know (Ohm second law) that $R= \frac{k}{d^2}$ where k inlcudes the rest of the parameters (material, lenght). In our situation we have k= $0.4\cdot9 \Omega mm^2$ . The moment the diameter becomes 8mm R becomes