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Alenkasestr [34]
3 years ago
12

Whats the volume of the solid??

Mathematics
1 answer:
algol133 years ago
5 0

Answer:

2268\pi\ or\ 7,121.52

Step-by-step explanation:

A = \pi (\frac{D}{2})^2 = \pi (\frac{18}{2})^2 = \pi 9^2 = 81\pi

V = A * h = 81\pi * 28 = 2268 \pi = 7,121.52

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Pls help i’m so confused!!
pentagon [3]

Answer:

11 units^2

Step-by-step explanation:

We know that the area of a square is the side squared, so we can use the inverse of this formula to say the side of a square is the square root of the the area. This gives us√33 and √44 as the side lengths of the red and green squares respectively. Next, we use the pythagorean theorem to find the other side of the white right triangle, which is also a side of the blue square. So:

(√44)^2 - (√33)^2 = side^2

44 - 33 = side

side^2 = 11

side = √11

To find the area of a square, you just square the side, so we get (√11)^2 which is just 11 units^2.

3 0
3 years ago
Which set of angle measures could be the measures of the interior angles of a triangle?
satela [25.4K]

Answer:

B

Step-by-step explanation:

The sum of the 3 interior angles of a triangle = 180°

Check the sums of the given sets of angles

90° + 42° +58° = 190° ≠ 180° ← not valid

60° + 60° + 60° = 180° ← Valid

100° + 48° + 42° = 190° ← not valid

31° + 75° + 70° = 176° ← not valid

7 0
3 years ago
Read 2 more answers
Do you think stores would sell more products if they used fractions to represent the price or decimals? Explain why or why not.
Alik [6]

Answer:

they would sell less because no customer is going to spend their time converting the fraction into decimal form.

Step-by-step explanation:

idk if this is like a opinion-based question but here you go.

6 0
3 years ago
you deposit $1.000 in a saving account that earns 0.5% each month. Assuming you do not deposit or withdraw any from the account,
Mumz [18]

1 + {[(1 * 0.5) x 12] x 3}

1 + {[0.5 x 12] x 3}

1 + {6 x 3}

1 + 18

19

I'm not sure if that's a 1.000 or 1,000 so:

1,000 + {[(1,000 * .5) x 12] x 3}

1,000 + {[500 x 12] x 3}

1,000 + {6,000 x 3}

1,000 + 18,000

19,000

8 0
3 years ago
Ella has $115. She wants to purchase a cell phone for $53 and spend the rest on music. Each music album costs $9. Write and solv
lana [24]
53 + 9x < 115
THE LESS THAN SYMBOL SHOULD HAVE A LINE UNDER IT!
3 0
3 years ago
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