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harkovskaia [24]
2 years ago
5

Please help me!

Mathematics
1 answer:
Anon25 [30]2 years ago
8 0

Answer:

a

Step-by-step explanation:

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Alain throws a stone off a bridge into a river below. The stone's height (in meters above the water), xxx seconds after Alain th
Naya [18.7K]
For this case we have the following function:
 h (x) = - 5x ^ 2 + 10x + 15

 By the time the stone is thrown, x = 0.
 We must evaluate this value of x in the function.
 We have then:
 h (0) = - 5 (0) ^ 2 + 10 (0) +15

h (0) = 0 + 0 + 15

h (0) = 15 meters
 Answer:
 The height of the stone at the time is thrown is given by:
 h (0) = 15 meters
4 0
3 years ago
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What is the volume of the cylinder use pie = 3.14 and round to the nearest tenth if needed
shepuryov [24]
Volume of a cylinder = π · radius(r)² · height(h)

Since you didn't provide the radius or the height, I am unable to provide a solution to this problem but hopefully you can solve it on your own now that you have the formula.
7 0
3 years ago
What value of x makes the equation true ? 4(2x-4)=16
otez555 [7]
4(2x-4) = 16
4*2x - 4*4 = 16
8x - 16 = 16
8x = 16 + 16
8x = 32 / : 8
x = 4

7 0
3 years ago
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Help pls need answer
blagie [28]

Answer:

a

Step-by-step explanation:

idk

4 0
3 years ago
Find the area of the region shaded in green. Use 3.14 to approximate pi.
8090 [49]

Answer:

254 cm² (to 3 s.f.)

Step-by-step explanation:

Area of shaded region

= area of large circle -area of smaller circle

\boxed{area \: of \: circle = \pi {r}^{2} }

Radius of large circle= 15cm

Radius of smaller circle= 12cm

Area of shaded region

= π(15²) -π(12²)

= 225π -144π

= 81π

= 81(3.14)

= 254.34

= 254 cm² (3 s.f.)

3 0
3 years ago
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