100 points with work

Mathematics

2 answers:

nirvana33 [79]3 years ago

8 0

Answer:

he said it not me

muminat3 years ago

4 0

Answer:

jacky 12 809 n-t

Step-by-step explanation:

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Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth. A rocket is launched from atop a

umka2103 [35]

When it hits the ground, then h=0
find the xintercept or in this case the tintercepts
c=76
v=135

h=-16t^2+135t+76
use quadratic formula

ax^2+bx+c=0
x= $\frac{-b+/- \sqrt{b^2-4ac} }{2a}$

a=-16
b=135
c=76

x= $\frac{-135+/- \sqrt{135^2-4(-16)(76)} }{2(-16)}$
x= $\frac{-135+/- \sqrt{18225+4864} }{-32}$
x= $\frac{-135+/- \sqrt{23089} }{-32}$
aprox
x=-0.5297 or 8.967
exclude the negative root since you can't have negative time

means that it takes 8.97 seconds to hit the ground

4 0

3 years ago

How do you solve 2r^2+2r-24=0 using the quadratic formula ?

kramer

2r2+2r−24=0

Step 1: Factor left side of equation.

2(r−3)(r+4)=0

Step 2: Set factors equal to 0.

r−3=0 or r+4=0

r = 3 or r = −4

7 0

3 years ago

Do you agree with the researchers method of predicting the population? Why or why not?

Burka [1]

Yes, I agree with the researcher's method. All the values of $a_{n}$ in the table correspond to the values of n by using their formula.