Answer:
38, 26
Step-by-step explanation:
(x+78) + (x-12) +x = 180
3x + 66 =180
3x = 114
x = 38
P = 38-12=26
Answer:
(f•g)(3) = -7
Step-by-step explanation:
f(x)=-2x + 7
g(x) = x^2 – 2
(f•g)(3) = -2(x² - 2) + 7
(f•g)(3) = -2x² + 4 +7
(f•g)(3) = -2x² + 11
(f•g)(3) = -2(3)² + 11
(f•g)(3) = -2(9) + 11
(f•g)(3) = -18 + 11
(f•g)(3) = -7
Answer: -770
Step-by-step explanation:
Answer:
15
Step-by-step explanation:
Opposite sides in a parallelogram are equal.
2x - 5 = x + 10
Subtract x and add 5 on both sides.
2x - x = 10 + 5
Combine like terms.
x = 15
Answer:
x^2 + 11x + 30
Step-by-step explanation:
Area of a rectangle = length x width
Length = x + 6
Width = x + 5
Area = (x + 6)(x + 5)
Using the distributive property, we have
x x x + x x 5 + 6 x x + 6 x 5
x^2 + 5x + 6x + 30
x^2 + 11x + 30
