Express in terms of i.
A. -2i
B. 2
C. -2
D. 2i
Answer: D
Mathematics
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Factor the sum or difference of two cubes.x3 - 27
A. (x + 3)(x2 - 3x + 9) B. (x + 27)(x2 - 1) C. (x - 3)(x2 + 9) D. (x - 3)(x2 + 3x + 9)
Mathematics
Factor completely. If the polynomial cannot be factored, say it is prime.3x2 - 21x + 30
A. 3(x - 10)(x + 1) B. 3(x - 2)(x - 5) C. (x - 2)(3x - 15) D. prime
Mathematics
Provide an appropriate response.If the y-intercept of the graph of the linear function f(x) = 3x + b lies below the x-axis, then what can you say about b?
A. b > 0 B. b ? 0 C. b = 0 D. b < 0
Mathematics
Use an integer to express the number.This year corn production increased 18,000 pounds from last year on Steve's farm.
A. 18,000 B. -18,000
Mathematics