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nevsk [136]
3 years ago
6

A ball is dropped from the top of a building. The distance, y, in meters above the ground for the ball after t seconds can be mo

deled by the equation u=-9.8t^2+100.

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
7 0
The y-intercept of the equation is 100. It means that the ball is being dipped from 100 meters. An x-intercept would be when the ball would reach the ground. I believe after 98 seconds it would reach the ground but I’m not sure.
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Answers anyone please?
kolezko [41]
I think that the answers are 4, 4 and 25 respectively
6 0
2 years ago
Read 2 more answers
What should be multiplied with -25/36 to get -5/9​
Ierofanga [76]

Answer:

\frac{4}{5}

Step-by-step explanation:

\frac{-\frac{5}{9}}{-\frac{25}{36}}=\\\\-\frac{5}{9}*(-\frac{36}{25})=\\\\\frac{4}{5}

6 0
2 years ago
You start out with $20 and then spend money in a store where every item is $3. Y = -3x + 20.
hodyreva [135]

D

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Which of the following is best described as a three-dimensional solid consisting of a base that can be any polygon a point not i
Harman [31]

Answer:

Option D

Pyramid

Step-by-step explanation:

The clause that gave away the answer is "<em>three-dimensional solid consisting of a base that can be any polygon"</em>

<em></em>

Scanning through the options, we can see that the only option that fits the description is the pyramid.

The pyramid is the only three-dimensional shape amongst the options that can take any polygon as a base.

<em>The other options get screened out here.</em>

A cube must have a square base.

A triangular prism must have a triangular base

A rectangular prism must have a rectangular base

Thus, option D: The Pyramid is the correct answer.

3 0
3 years ago
What is the definition of perfect cube and can you give an example
PilotLPTM [1.2K]
A perfect cube is a natural number in the form
{a}^{3}  = a \times a \times a
therefore
{1}^{3}  = 1 \\  {2}^{3}  = 8 \\  {3}^{3}  = 27 \\  {4}^{3}  = 64 \\  {5}^{3 }  = 125 \\ . \\ . \\ .\\ .
and also you can define it as any natural number who's third root is also a natural number for examble
\sqrt[3]{1000}  = 10
so you can say that the tenth perfect cube is 1000
6 0
2 years ago
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