Perform the indicated operation. Write the result in the form a + bi.(6 + 4i) - (-2 + i)
A. 4 + 5i
B. 8 + 3i
C. 8 - 3i
D. -8 - 3i
Answer: B
Mathematics
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If possible, factor the polynomial completely. If a polynomial cannot be factored, state that it is prime.8x2y2 + 10xy2 - 25y2
A. (4x + 5y)(2x - 5y) B. y2(2x + 5)(4x - 5) C. y2(x + 5)(8x - 5) D. (2x + 5y)(4x - 5y)
Mathematics
Solve the problem.What is the y-intercept of y = sec x?
A. 0
B. 
C. 1
D. none
Mathematics
Determine whether the sequence is arithmetic. If so, find the common difference. ? ?128, 64, 32, 16, 8, ... ?
A. Arithmetic sequence, d = -120 B. Arithmetic sequence, d = -8 C. Arithmetic sequence, d = 8 D. Arithmetic sequence, d = 24 E. Not an arithmetic sequence
Mathematics
Find the requested angle.The complement of 79°.
A. 191° B. 11° C. 281° D. 101°
Mathematics