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Greeley [361]
3 years ago
6

What 4a+7b+5a-b please sorry

Mathematics
2 answers:
Vanyuwa [196]3 years ago
8 0

Answer:

Step-by-step explanation:

Its 46

nataly862011 [7]3 years ago
6 0

46

happy valentines day!

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weqwewe [10]

Answer:

t = 0.293 s and 14.52 s

Step-by-step explanation:

The heights of the ball in feet is given by the equation as follows :

S = -2.7t^2+40t+6.5

Where t is the number of seconds after the ball was thrown.

We need to find is the ball 18 ft above the moon's surface.

Put S = 18 ft

-2.7t^2+40t+6.5=18\\\\-2.7t^2+40t=18-6.5\\\\-2.7t^2+40t-11.5=0

It is a quadratic equation. Its solution is given by :

t=\dfrac{-40+\sqrt{40^{2\ }-4\left(-2.7\right)\left(-11.5\right)}}{2\left(-2.7\right)},\dfrac{-40-\sqrt{40^{2\ }-4\left(-2.7\right)\left(-11.5\right)}}{2\left(-2.7\right)}\\\\t=0.293\ s,14.52\ s

So, the ball is at first 0.293 s and then 14.52 s above the Moon's surface.

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3 years ago
How do i rearrange mx+n=px+q to get x?
Mice21 [21]

Answer:here's ur answer

Step-by-step explanation:

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4 x 4/12=<br> Sheeeeeeeeeeeeeeeesh
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