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ANEK [815]
3 years ago
7

Can someone please help me with 9 and 10!!! Thank you so much!!!

Mathematics
1 answer:
Dmitrij [34]3 years ago
5 0
9 Is −4x3 and 10 is −5a2
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What are the roots of the polynomial equation x^2-x72=0
Tom [10]
I hope this helps you



x^2-x-72=0


x -9


x +8



(x-9)(x+8)=0



x=9



x= -8
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3 years ago
In △ABC the points M and N belong to the sides
tangare [24]

Try this solution, it consists of two parts (MN=8).

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sashaice [31]
The Y intercept is five
5 0
3 years ago
Can someone please help me
DedPeter [7]

Answer:

6

Step-by-step explanation:

Perimeter = 2l + 2w

48 = 2(18) + 2(w)

48 = 36 + 2w

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1 year ago
A trampolinist steps off from 15 feet above ground to a trampoline 13 feet below. The function h (t) = -16 t 2 + 15, where t rep
kondor19780726 [428]

Answer:

Trampolinist will land on the trampoline after 0.9 seconds.

Step-by-step explanation:

The function h(t) = -16t² + 15 represents the relation between height 'h' above the ground and the time 't' of the trampolinist.

We have to find the time when trampolinist lands on the ground.

That means we have to find the value of 't' when h(t) = 15 - 13 = 2

[Since trampoline is 2 feet above the ground]

When we plug in the value h(t) = 2

2 = -16t² + 15

2 + 16t² = -16t² + 16t² + 15

16t² + 2 = 15

16t² + 2 - 2 = 15 - 2

16t² = 13

\frac{16t^{2}}{16}=\frac{13}{16}

t^{2}=\frac{13}{16}

t = \sqrt{\frac{13}{16}}

t ≈ 0.9 seconds

Therefore, trampolinist will land on the trampoline at 0.9 seconds.

5 0
3 years ago
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