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3 years ago

Write the equation of the line passing through points (2, - 2) and (1, 0) in slope intercept form

1 answer:

4 0

First find the slope
(0+2)/(1-2) = 2/-1 = -2
Y = mx + b
Y = -2x + b
Plot in any point
-2 = -2(2) + b, b = 2
Solution: y = -2x + 2

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Cristina has completed .4 of his test. The test has 40 questions total. if he completes 12 more how many more will he have left?

katrin [286]

4 + 12 = 16

40 - 16

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3 years ago

What is the range of the given function?

uysha [10]

Answer:

Step-by-step explanation:

x= -5,1,4,6 y=9,0,-7,-1

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3 years ago

Andrew solves 6x2=12x by using the quadratic formula. What values does he use for a, b, and c? a = (Put the number only in the b

zhenek [66]

Answer:

a=6, b=-12, and c=0

Step-by-step explanation:

The standard format for the quadratic formula is ax^2+bx+c (=0).

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3 years ago

If you answer this you will get brainless

Yanka [14]

Answer:

Step-by-step explanation:

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2 years ago

Read 2 more answers

A cone has a radius of 5 ft and a height of 15 ft. It is empty and is being filled with water at a constant rate of 15 15 ft 3 f

kvasek [131]

Answer:

$\frac{dr}{dt}=0.11062ft/sec$

Step-by-step explanation:

From the question we are told that:

Radius $r=5ft$

Height $H=15ft$

Rate $R=15ft/3sec =5ft/s$

Surface Radius $R_{surf}=2.2ft$

Generally the equation for Volume is mathematically given by

$V=\frac{1}{3}\pi*r^2h$

Since radius to height ratio gives

$\frac{r}{h}=\frac{5}{15}$

$\frac{r}{h}=\frac{1}{3}$

$h=3r$

Therefore

$V=\frac{1}{3}\pi*r^2(3r)$

$V=\pi r^3$

Generally the equation for Change of Volume is mathematically given by

$\frac{dv}{dt}=\pi \frac{d}{dt}(r^3)$

$\frac{dv}{dt}=\pi 3*r^2 \frac{dr}{dt}$

$\frac{dv}{dt}=\pi 3*(2.2)^2 \frac{dr}{dt}$

$\frac{dr}{dt}=\frac{5}{45.62}$

$\frac{dr}{dt}=0.11062ft/sec$

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3 years ago