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Pavlova-9 [17]
3 years ago
6

Does anyone know how to do this question ??

Mathematics
1 answer:
Viktor [21]3 years ago
4 0
Y^2-9^2

(y-9)(y+9)

To see if its right:

y*y+y*9-9*y-9*9
y^2+9y-9y-81
y^2-9^2
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SHOW YOUR WORK!!! Marking best answer as brainliest :))
Wewaii [24]

Answer:

-25

Step-by-step explanation:

You must first pick two points.  I picked the points of (4, 400) and (8, 300).  You can pick different points and still get the right answer.

Subtract the y's and the x's.  Divide the difference of y by the difference of x.

400 - 300 = 100

4 - 8 = -4

100/-4 = -25

The slope, or rate of change, is -25.

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4 years ago
X2y, for x = 3 and y = 6
DENIUS [597]

Answer:

12

Step-by-step explanation:

6 0
2 years ago
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5x 2 1/8<br> Can you explain please
Lady bird [3.3K]

Answer:It is in the DMAS rule

Step-by-step explanation:5*21/8

=5*2

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3 years ago
A 5-gallon jug of cleaning solution contains 6% bleach. How much pure water should be added to it to dilute to 4% bleach?
mihalych1998 [28]
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if we use "x" gallons of water, well pure water has no bleach, so is 0% bleach, and it has a (0/100) * x or 0x gallons of bleach.

the mixture will be say "y" gallons, and is 4% bleach, so (4/100) * y is 0.04y gallons in the mixture of bleach.

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3 years ago
What is the acceleration of an object in air that has a velocity of Om/s?
pochemuha

Answer:

9.8m/s^2

Step-by-step explanation:

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