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2 years ago

Need help math 8th grade

Mathematics

2 answers:

mamaluj [8]2 years ago

6 0

Answer:

Step-by-step explanation:

I dont know

Andre45 [30]2 years ago

5 0

Answer:

System a will graph a pair of parallel lines.

Step-by-step explanation:

Both equations have the same slope.

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Find the Slope-intercept equation of the line which passes through (3, -4) and (-3, 8).

Andrew [12]

Answer:

y = -2x + 2

Step-by-step explanation:

8 + 4/ -6

= -2

y = -2x + b

8 = -2(-3) + b

8 = 6 + b

2 = b

check work

-4 = -2(3) + 2

-4 = -6 + 2

-4 = -4

it is correct

8 0

2 years ago

Help meeeeeeeeeeeeeeee

Reil [10]

Answer:

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7 0

2 years ago

Read 2 more answers

Help meeeeee ????????

Solnce55 [7]

3(m+2) = 5m-58

3m+6 = 5m-58

6 = 2m-58

64 = 2m

m = 32

8 0

2 years ago

Daniel dives into a swimming pool. The height of his head is represented by the function h(t) = -8t2 - 28t + 60, where t is the

8_murik_8 [283]

So, h(t) is how far is Daniel's head from the surface of the water, namely the surface itself is when the height is nill, so his head is at the surface and the height of it is just 0, thus h(t) = 0. Namely, what is "t" when h(t) is 0?

$\bf h(t)=-8t^2-28t+60\implies \stackrel{h(t)}{0}=-8t^2-28t+60
\\\\\\
0=-2t^2-7t+15\implies 2t^2+7t-15=0\implies (2t+3)(t-5)=0
\\\\\\
\begin{cases}
2t+3=0\implies 2t=-3\implies &t=-\frac{3}{2}\\\\
t-5=0\implies &\boxed{t=5}
\end{cases}$

clearly the seconds cannot be a negative unit, so is not -3/2.

6 0

2 years ago

HELP ME ASAP!!! PLEASE

Sloan [31]

B, 190.
First you find the area of the circle (pi times radius squared) however, since you are given diameter, you must find radius by dividing diameter by 2. So, your radius is 9, then you plug it into the formula and you get 254.5. After multiplying this by 0.75 because you only want to find 75 percent of the area, you get the answer of 191m

4 0

3 years ago