Problem 11
<h3>Answer: -4x^2 - 6 (choice 3)</h3>
Work Shown:
P = 4x^2-x+1
Q = -6x^2+x-4
P+Q = sum of P and Q
P+Q = (4x^2-x+1)+(-6x^2+x-4)
P+Q = (4x^2-6x^2)+(-x+x)+(1-4)
P+Q = -2x^2+0x-3
P+Q = -2x^2 - 3
2*(P+Q) = twice the sum of P and Q
2*(P+Q) = 2*(-2x^2 - 3)
2*(P+Q) = 2(-2x^2) + 2(-3)
2*(P+Q) = -4x^2 - 6
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Problem 12
<h3>Answer: 6x^3 + 4x^2 - 34 (choice 1)</h3>
Work Shown:
y = 3x^3 + x^2 - 5
z = x^2 - 12
2(y+z) = 2(3x^3 + x^2 - 5 + x^2-12)
2(y+z) = 2(3x^3 + 2x^2 - 17)
2(y+z) = 2(3x^3) + 2(2x^2) + 2(-17)
2(y+z) = 6x^3 + 4x^2 - 34
A supplementary angle measures 180 degrees, therefore 180-65 is equal to 115 degrees
Answer:
C) 56
Step-by-step explanation:
These angles are supplementary (they add up to 180):
3x + 31 + 2x - 6 = 180
5x + 25 = 180
5x = 180 - 25
5x = 155
x = 31
<FEG:
2x - 6
2(31) - 6
62 - 6
56
Answer:
the answer to 5×5 is 25
Step-by-step explanation:
your welcome
y=mx+b
3x+4y=8
move 3x to the other side
sign changes from +3x to -3x
3x-3x+4y=-3x+8
4y=-3x+8
divide both sides by 4 to get y by itself
4y/4=-3x/4+8/4
y=-3x/4+2
y=-3/4x+2
answer:
-3/4x+2
