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Alex777 [14]
3 years ago
15

A right cylinder has a radius of 5 and a height of 9. What is its surface area?​

Mathematics
1 answer:
harkovskaia [24]3 years ago
5 0

Answer:

B. 140π units²

Step-by-step explanation:

Surface area of a cylinder:

2πrh + 2πr²

2π(5)(9) + 2π(5²)

90π + 50π

140π

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Suppose a deep sea driver dives from the surface to 248 feet below the surface. He then dives down 10 more feet. Use integers yo
Akimi4 [234]

Answer:

Initial dive: - 248 (below the surface which represents '0')

Second dive: -10

Present depth -248 + -10 = -258 feet below the surface

Step-by-step explanation:

We can use negative integers to represent real-world scenarios such as in elevation and descent, bank account balances and temperatures.  In this case, because a diver is descending below the surface of the water, the surface of the water represents the '0' and going down into the water would be negative integers.  So, his initial dive is 248 down, or negative 248 (-248), he then dives down an additional 10 feet, or negative 10 (-10).  Since the second dive is in addition to his initial dive, we add the two integers together:

-248 + -10 = -258 feet

5 0
3 years ago
in triangle TVY the measure of angle T is 20 The measure of angle V is 25 The measure of angle W Is 135 what is combined measure
Akimi4 [234]

Answer:

The answer is 180°

Step-by-step explanation:

Replace the variables in with your angle measurements and add them up. Triangles should end up with a 180° all combined.

6 0
3 years ago
I need help please ?!!
melomori [17]

the answer is b because the answer for both of them is -39. you might also want to look into the sign rules in algebra bb :)

3 0
3 years ago
An elevator descends at a constant speed. What is the
Firlakuza [10]

Answer:

-42.75 meters

Step-by-step explanation:

4 0
4 years ago
Complete the steps for x. <br> 5/6x- 1/5x =19 <br> 5/6x- 1/5x =19 <br> ?/30x=19
dybincka [34]

Answer:

x = 30

Step-by-step explanation:

5/6x- 1/5x =19

Get a common denominator of 30

5/6x * 5/5  - 1/5x * 6/6 = 19

25/30x - 6/30x = 19

19/30x = 19

Multiply each side by 30/19

19/30x * 30/19  = 30/19 * 19

x = 30

8 0
3 years ago
Read 2 more answers
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