Write the number in scientific notation.A computer compiles a program in 0.00000747 seconds.
A. 7.47 × 10-8
B. 7.47 × 10-6
C. 7.47 × 105
D. 7.47 × 10-7
Answer: B
Mathematics
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Solve for the specified variable.5x + 
= 
for z
A. z = 
B. z = 
C. z = 
D. z = 
Mathematics
Solve.(2x + 2)2 = 16
A. 1, 3 B. 1, -3 C. 0, 1 D. 9, -9
Mathematics
Determine whether the given lines are parallel, perpendicular, or neither.7x + 9y = -15y = - 
x - 17
A. Perpendicular B. Parallel C. Neither
Mathematics
Solve the problem.The annual population density of a species of insect after n years is modeled by a sequence. Suppose that the initial density of insects is 608 with r = 0.8. Write a recursive sequence that describes this data, where an denotes the insect density during year n.
A. an = 0.8 + an-1 , a1 = 608
B. an = 0.8 an-1 , a1 = 608
C. an = 
, a1 = 608
D. an = 0.8 an+1 , a1 = 304
Mathematics