Factor the Polynomial completely x^2 + 18
1 answer:
x² + 18 = (x - 3√2i)(x + 3√2i)
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Equation
A = (b1 + b2)*h /2
Givens
b1 = 5 feet
b2 = 7 feet
h = 3 feet
Sub and solve
Area = (5 + 7)*3/2
Area = 12*3/2
Area = 36/2
Area = 18 Square feet.
Answer:
D
Step-by-step explanation:
every 2 sides of a triangle has to be bigger than the 3rd side
