3 years ago

(-2,22) write the equation in point slope form. Y-y1=m (X-X1)

1 answer:

7 0

Seeing as we don't have a second point, we cannot find the slope, meaning the furthest we can solve this to is y-22=m(x+2), plugging in our point. Our slope would be plugged into m.

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Point M is the midpoint of segment QR. If QM = 16 + x and MR = 2(x + 2), find the length of QM.

pav-90 [236]

Just add them
QM+MR=QR
16+x+2(x+2)=QR
16+x+2x+4=QR
20+3x=QR

6 0

3 years ago

Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels at 55 miles per

SSSSS [86.1K]

Answer:

95+75=170 mph=speed at which the two trains are moving apart

travel time=distance/speed=374/170=2.2

How long will it take for the two trains to be 374 miles apart? 2.2 hrs

Step-by-step explanation:

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3 years ago

Reuben bought a desktop computer and a laptop computer. Before finance charges, the laptop cost $150 more than the desktop. He p

cupoosta [38]

Same case as Pablo's, more or less.

a = price for the desktop

b = price for the laptop

we know the laptop is 150 bucks more than the desktop, b = a + 150.

how much is 7% of a? (7/100) * a, 0.07a.

how much is 9.5% of b? (9.5/100) * b, 0.095b.

total interests for the financing add up to 303, 0.07a + 0.095b = 303.

$\bf \begin{cases}
\boxed{b}=a+150\\
0.07a+0.095b=303\\
----------\\
0.07a+0.095\left(\boxed{a+150} \right)=303
\end{cases}
\\\\\\
0.07a+0.095a+14.25=303\implies 0.165a=288.75
\\\\\\
a=\cfrac{288.75}{0.165}\implies a=1750$

how much was it for the laptop? well b = a + 150.

8 0

3 years ago

Bru how i do these 2 ?

Stells [14]

Use the pythagoream theorem A^2+B^2 then square your answer a being your adjacent side and b being your opposite leg.

7 0

2 years ago

Please help I don't know

GaryK [48]

Answer:

your answer is correct

Step-by-step explanation:

-5 x -4=20

20+3=23

8 0

3 years ago