Write the expression in the standard form a + bi.(7 + 8i) - (-8 + i)
A. 15 + 7i
B. 15 - 7i
C. -15 - 7i
D. -1 + 9i
Answer: A
Mathematics
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A. 27x3 - 64 B. (3x - 4)9 C. 27x3 - 108x2 + 144x - 64 D. 3x - 4
Mathematics
Provide an appropriate response.Is it true that the product of two binomials (-8x + 3)(-8x - 3) is equal to 
A. True B. False
Mathematics
Write the expression in lowest terms.
A. -1 B. 1 C. -8 D. Cannot reduce
Mathematics
Solve the problem.A flare fired from the bottom of a gorge is visible only when the flare is above the rim. If it is fired with an initial velocity of 128 ft/sec, and the gorge is 192 ft deep, during what interval can the flare be seen? (h = -16t2 + vot + ho.)
A. 2 < t < 6 B. 6 < t < 10 C. 4 < t < 8 D. 0 < t < 2
Mathematics