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Jobisdone [24]
3 years ago
13

A direct variation function contains the points (-9,-3) and (-12,-4). Which equation represents the function? y= -3x, y= -x/3, y

= x/3, y= 3x
Mathematics
2 answers:
zalisa [80]3 years ago
7 0

Answer:

I think that the answer is D

disa [49]3 years ago
3 0
To find the equation, find the slope from the two points. The slope formula is (y1-y2)/(x1-x2). Plugging in the two points, you should get 3 as your slope. 

As a line, the answer would be y=3x. Therefore, y=3x represents the function described. 
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PLEASE HELP!!
pogonyaev

Answer:

Work shown below!

Step-by-step explanation:

\sqrt{-18}=\sqrt{18i^{2} }  =\sqrt{2*9i^{2} }=3i\sqrt{2}

2\sqrt{-16} =2\sqrt{16i^{2} } =4i*2=8i

4 0
3 years ago
Luke earned a grade of 88% on his multiple choice history final that had a total of
weqwewe [10]

Answer:

176

Step-by-step explanation:

88% = 88/100

88 × 2 = 176

176/200

4 0
3 years ago
Read 2 more answers
Find the equation of the line passing through the points (15,-25) and (-12,11). Write your answer in the form of y=mx+b
schepotkina [342]
(15,-25)(-12,11)
slope = (11 - (-25) / (-12 - 15) = - 36 / 27 which reduces to - 4/3

y = mx + b
slope(m) = -4/3
use either of ur points (15,-25)...x = 15 and y = -25
now we sub and find b, the y int
-25 = -4/3(15) + b
-25 = - 20 + b
-25 + 20 = b
-5 = b

so ur equation is : y = -4/3x - 5 <==
3 0
3 years ago
Attention all people! There is a girl trying to get people to press this link and she tries to control your computer and steal y
kvasek [131]

Answer:

thank you for the warning the moderators of this website really need 2 get there stuff together

Step-by-step explanation:

6 0
3 years ago
Due to employee safety negligence at a nuclear waste facility, 2000 tons of a radioactive element is spilled into the nearby pon
HACTEHA [7]

How long, to the nearest day, until it is safe to swim again will be 156 days

Let x represent number of day until it is safe to swim again

First step

=2000 *1/2^x

100=2000 *0.5^x

0.05=0.5^x

Second step

Log 0.05=xLog 0.5

Log 0.05/L0g 0.5=x

x=36 days* Log 0.05/L0g 0.5

x=36 days*43.22

x=156 days

Inconclusion How long, to the nearest day, until it is safe to swim again will be 156 days

Learn more about  radioactive element here:

brainly.com/question/13812761

6 0
3 years ago
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