Multiply. 2a (7a² + 4a – 6)
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Solve.A fire fighter needs to estimate the height of a burning building. She estimates the length of her shadow to be 8 feet long and the length of the building's shadow to be 48 feet long. Find the height of the building if the fire fighter is 5
feet tall.
A. 80 ft B. 32 ft C. 72 ft D. 55.995 ft
Rewrite the expression as the sine, cosine, or tangent of a double angle. Then find the exact value of the trigonometric expression without the use of a calculator.cos2 60° - sin2 60°
A. - 
B. - 
C. 
D. 
Find the x- and y-intercepts of f.f(x) = (x - 6)(x - 2)
A. x-intercepts: 6, 2; y-intercept: -8 B. x-intercepts: 6, 2; y-intercept: 12 C. x-intercepts: -6, -2; y-intercept: 12 D. x-intercepts: -6, -2; y-intercept: -8
Solve the problem.The costs of a hurricane in Kate's home state were $3.80 million. The costs of a hurricane in Jorg's home state were $8.73 million. How much more were the costs of the hurricane in Jorg's home state?
A. $4.93 million B. $4.83 million C. $6 million D. $5.93 million