3 years ago

Please help me with my algebra homework

1 answer:

7 0

Step-by-step explanation:

Here's the answer .... Hope it works .

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katrin2010 [14]

The answer go be C .7.6

6 0

3 years ago

DanielleElmas [232]

Answer: 245 feet

Step-by-step explanation:

Given: The height of the rocket after t seconds is represented by the formula:

$h=70t-5t^2$

$\dfrac{dh}{dt}=70-10t$ [Differentiate both sides w.r.t. t]

Put

$\dfrac{dh}{dt}=0\\\\\Rightarrow\ 70-10t=0\\\\\Rightarrow\ t=\dfrac{70}{10}=7$

Also, $\dfrac{d^2h}{dt^2}=-10$ i.e. height is maximum at t=7.

Maximum height = $h=70(7)-5(7)^2 = 490 - 245= 245\text{ feet}$

Hence, the maximum height the rocket reaches = 245 feet.

3 0

3 years ago

ddd [48]

Slope formula:

y2 - y1
_____
x2 - x1

5 + 16
_____
18 + 8

21
__
26

slope is 21/26

8 0

4 years ago

alexandr1967 [171]

The answer would be 6

8 0

3 years ago

DIA [1.3K]

Subtract 9 from both sides. Then you have -14=c/4. Multiply the number by 4. You now have -56=c. :)

7 0

3 years ago