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777dan777 [17]
3 years ago
14

What is s in -5(s - 30) = -10?

Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
5 0

Answer:

s = 32

Step-by-step explanation:

First distribute the -5:

-5s + 150 = -10

Add 10 to both sides

-5s = 160

Divide by -5 on both sides

s = 32

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Maria's height while jumping on a a trampoline can be modeled by the equation h=-16t^2+18t+5. Where t=time in seconds and h=heig
Vadim26 [7]

Answer:

10.06 ft

Step-by-step explanation:

Maria's maximum height will occur when her velocity reaches zero (0). This means that she has stopped ascending and is about to begin descent.

The equation for the height reached by Maria on the trampoline is given as:

h=-16t^2+18t+5

To find her maximum height, we first have to find the time it will take her to get to that height and corresponding velocity (zero).

Her velocity can be found by differentiating her height i.e. dh/dt:

v = \frac{dh}{dt} = -32t + 18

Therefore, when v = 0:

0 = -32t+ 18\\\\=> 32t= 18\\\\t = 18 / 32 = 0.5625 secs

It takes her 0.5625 seconds to get to her maximum height.

Therefore, her height at that time (0.5625 seconds) is:

h=-16(0.5625)^2+18(0.5625)+5\\\\h = -16 * (0.3164) + 10.125+5\\\\h = -5.0624 + 15.125\\\\h = 10.06 ft

Therefore, her maximum height is 10.06 ft.

3 0
3 years ago
Gergio ran 5 kilometers in 30min. If he ran at this same pace how many did he run each min
Leokris [45]

Answer:

6 minutes per kilometer

7 0
2 years ago
Find and simplify the difference quotient of the​ form, <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bf%28x%2Bh%29-f%28x%29%7D%7Bh
Anastasy [175]

With f(x)=-10x+9, we have

f(x+h) = -10(x+h) + 9 = -10x + 9 - 10h

Then the difference quotient is

\dfrac{f(x+h)-f(x)}h = \dfrac{(-10x+9-10h)-(-10x+9)}h = \dfrac{-10h}h = -10

since <em>h</em> ≠ 0.

7 0
2 years ago
PLEASE HELP 15 POINTS<br> Find m RS<br> S<br> (6x-28)<br> (4x+ 20)
dimaraw [331]

Answer:

arc RS = 116°

Step-by-step explanation:

Since the 2 chords are congruent then their minor arcs are congruent, that is

SR = TU, substitute values

6x - 28 = 4x + 20 ( subtract 4x from both sides )

2x - 28 = 20 ( add 28 to both sides )

2x = 48 ( divide both sides by 2 )

x = 24

Then

arc RS = 6x - 28 = 6(24) - 28 = 144 - 28 = 116°

8 0
3 years ago
A farmer paid $500 per month for deliveries over 10 months. For the other 2 months of the year, he paid $600 per
kati45 [8]

Answer:

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Step-by-step explanation:

5 0
2 years ago
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