Expand.(
+ 1)6 + (
- 1)6
A. 416
B. 370
C. 370
D. 208
Answer: A
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Factor completely.16x2 + 40xy + 25y2
A. (4x + 5y)(4x - 5y) B. (4x + 5y)2 C. (4x - 5y)2 D. (16x + 1)(x + 25)
Use the square root method to solve the equation. y2 = 5
A. 
B. 25
C. ±
D. 2.5
Solve the problem.John (whose line of sight is 6 ft above horizontal) is trying to estimate the height of a tall oak tree. He first measures the angle of elevation from where he is standing as 35°. He walks 30 feet closer to the tree and finds that the angle of elevation has increased by 12°. Estimate the height of the tree rounded to the nearest whole number.
A. 67 ft B. 86 ft C. 90 ft D. 61 ft
Use the Trapezoidal Rule to approximate the integral using the indicated value of n. 
dx; n = 4, Round to two decimal places.
A. 1.42 B. 1.62 C. 1.12 D. 1.02