Answer:-12r+20=-4(3r-5)
Step-by-step explanation:
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X^2 + 8x + 7 = 0
x^2 + 7x + x + 7 = 0
x(x + 7) + 1(x + 7) = 0
(x + 7) (x + 1) = 0
x = -7 or x = -1
Answer:
Option B: Only (-2, 9)
Step-by-step explanation:
Given the linear equation, y = -2x + 5:
We'll plug in the given options to see which of the ordered pairs will satisfy the equation:
Substitute option A: (2, -9) into the equation:
y = -2x + 5
-9 = -2(2) + 5
-9 = -4 + 5
-9 = 1 (False statement). Therefore, (2, -9) is not a solution.
Substitute option B: (-2, 9) into the equation:
y = -2x + 5
9 = -2(-2) + 5
9 = 4 + 5
9 = 9 (True statement). Therefore, the ordered pair, (-2, 9) is a solution.
The other two options are irrelevant at this point since we've proven that option B is the correct answer.
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Answer:
y=4x-1
Step-by-step explanation:
the lines can be written in their slope intercept form which is y=mx+b
m= slope=4
b=the intercept point=-1
so we have:
y=4x-1
Answer:
-18
Step-by-step explanation:
This is rather simple is it not?
To find the difference between the numbers, we simply have to subtract one from another. 
, which can be simplified into 
because subtracting a negative from a negative is simply done by adding the second negative as a positive to the first negative. Therfore = -18 which is your answer.
-18 is how much each number is subtracted to get the next.
