Write the expression in word form.7 ? 7 ? 7
A. three times seven
B. seven plus three
C. seven squared
D. seven cubed
Answer: D
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Find the limit of the sequence if it converges; otherwise indicate divergence.an = 1 + (-1)n + (-1)n(n+1)
A. 0 B. 1 C. 3 D. Diverges
Write the system of equations associated with the augmented matrix. Do not solve.
A. 6x - 2y + 8z = 8 -4x - 4y = 4 8x + 2z = -5 B. 6x - 2y + 8z = 8 -4x - 4y = 4 8x + 2y = -5 C. 6x - 2y + 8z = 8 -4x + -4z = 4 8x + 2y = -5 D. 6x - 2y + 8z = 8 -4x - 4y + 4z = 0 8x + 2y - 5z = 0
Factor. Assume that variables in exponents represent natural numbers.64x3a + 8y3b
A. (4xa + 2yb)(16xa - 8xayb + 4tb) B. (4x + 2y)(16x2a - 8xayb + 4t2b) C. (4xa - 2yb)(16x2a + 8xayb + 4t2b) D. (4xa + 2yb)(16x2a - 8xayb + 4t2b)
Find the exact value of the expression.sin 10° cos 50° + cos 10° sin 50°
A. 
B. 
C. 
D. 