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Xelga [282]
3 years ago
15

A cylinder has radius 3 meters. Its volume is 141.3 cubic meters. Find its height to the nearest tenth

Mathematics
1 answer:
Misha Larkins [42]3 years ago
3 0

Answer:

Height = 5meters

Step-by-step explanation:

Using the formula h= v over 3.14r^2 = 141.3 over 3.14 times 3^2 gives us 4.99747 meters.

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Solve for x.<br> x = [?]<br> 4x - 2<br> 3x + 14
Ilya [14]

Answer:

X = 7

Step-by-step explanation:

I really don’t know

6 0
3 years ago
In the figure below find the angles, QOS, QRS, and the angle OQR<br><br>Pls help​
lapo4ka [179]
Answer:
QOS = 150°
QRS = 75°
OQR = 83°

Explanation
7 0
3 years ago
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A Speedboat increases in speed uniformly from 20m/s to 30m/s for 12.2 s. What is the acceleration of the speedboat?
Aloiza [94]

Answer:

0.82 m/s^2

Step-by-step explanation:

Given data

initial velocity=20m/s

Final velocity= 30m/s

Time = 12.2s

Applying the formula

a= v-u/t

a= 30-20/12.2

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6 0
2 years ago
What is 4X -3+ 2X plus one minus X +8
garri49 [273]

Answer:

5x + 6

Step-by-step explanation:

4x - 3 + 2x + 1 - x + 8

= 4x + 2x - x -3 + 1 +8

= 5x + 6

5 0
3 years ago
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Find the area of the shaded region. Use 3.14 for at as necessary. PLEASE HELP ASAP!!
ollegr [7]

9514 1404 393

Answer:

  A. 53.5cm^2

Step-by-step explanation:

The area of the circle is ...

  A = πr²

  A = 3.14(5 cm)² = 78.5 cm²

The area of the triangle is ...

  A = 1/2bh

  A = 1/2(10 cm)(5 cm) = 25 cm²

The shaded area is the difference between the circle area and the triangle area:

  shaded = 78.5 cm² -25 cm² = 53.5 cm²

_____

<em>Additional comment</em>

As with many multiple-choice questions, you can simply pick the answer that is not outlandish. The circle will fit into a square that is 10 cm on a side, so its total area is less than 100 cm² (eliminates choice B).

The shaded area is definitely more than 1/4 of that 100 cm² square, so choices C and D are eliminated, too. The only choice that is not unreasonable is choice A.

7 0
3 years ago
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