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r-ruslan [8.4K]
3 years ago
5

I need help with this math question :(

Mathematics
1 answer:
Ray Of Light [21]3 years ago
8 0

Answer:

k = 5,

y = 5x

Step-by-step explanation:

If y is proportional to x,

y ∝ x

Then the equation will be

y = kx

Her k = proportionality constant.

Now we choose a point from the given table.

Let the point is (2, 10).

By putting the values of x and y in the equation,

10 = 2×k

k = \frac{10}{2}

k = 5

This will be true for any point we choose from the table.

And the equation will be y = 5x

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Answer:

2

Step-by-step explanation:

The height formula given is:

h = -16t^2 + 70

That means the object will be initially (t=0) at the height 70 feet, from where it will be dropped.

If we want to know the time when the object will be at height 6 feet, we just need to use h=6 in the equation, and then calculate the value of t:

6 = -16t^2 + 70

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So, it will take 2 seconds for the object to be 6 feet above the valley floor.

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3 years ago
Simplify the following expression. 1/4 (24-16x)<br> a. 6+4x<br> b. 6+4<br> c. 6-4x<br> d. 6-4
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Answer is 6-4x

 <span>1/4 evaluates to 1/4
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<span>Multiply x and 16
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1/4 *24=6


<span>1/4*(24-16*x) evaluates to 6-4x</span>
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