Simplify.(3 + 5)2
A. 64
B. 14
C. 28
D. 34
Answer: A
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Collect like terms and write in descending order.3y9 + 9y8 - 6y5 + 4
A. 10y22 B. 6y22 + 4 C. 3y9 + 9y8 - 6y5 D. Can't be simplified
Factor completely. If the polynomial cannot be factored, say it is prime.9x2 - 1
A. prime B. (3x - 1)(3x + 1) C. (3x - 1)2 D. (3x + 1)2
Determine the domain and range of the function.
A. domain: (-?, 1) ? (1, ?); range: (-?, 2) ? (2, ?) B. domain: (-?, 1]; range: (-?, 2] C. domain: (-?, ?); range: (-?, 2] D. domain: (-?, ?); range: (-?, ?)
Solve the problem.A railroad bridge is built over a V-shaped canyon. If the supports are 10 feet long at each end, the center support is 250 feet long, and the supports increase in length by 2 feet with each support (from 10 feet to 250 feet), what is the total length of all the supports?
A. 31,208 ft B. 31,210 ft C. 31,212 ft D. 31,200 ft