Factor completely, or state that the polynomial is prime.x4 - 16
A. prime
B. (x2 + 4)(x2 + 4)
C. (x2 - 4)(x2 - 4)
D. (x2 + 4)(x + 2)(x - 2)
Answer: D
Mathematics
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Find the derivative of the function at P0 in the direction of u.f(x, y) = ln(10x + 5y), P0(7, 9), u = 6i + 8j
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Graph f(t) = cot t in 
2?, 2?, ?/
by 
4, 4, 
using dot mode. Use the graph to identify the range and period of f.
A. - ? < cot t < ?; 2? B. - 1 ? cot t ? 1; ? C. - 1 ? cot t ? 1; 2? D. - ? < cot t < ?: ?
Mathematics
Solve the problem.The length of a rectangular storage room is 3 feet longer than its width. If the area of the room is 130 square feet, find its dimensions.
A. w = 11 ft, l = 14 ft B. w = 9 ft, l = 12 ft C. w = 10 ft, l = 13 ft D. w = 9 ft, l = 14 ft
Mathematics
Solve the equation.3x + 4 = 0
A. 
B. 
C. 
D. 
Mathematics