Factor. Check by multiplying.4 + 4z
A. 4(1 + 4z)
B. 4(0 + z)
C. 4(4 + z)
D. 4(1 + z)
Answer: D
Mathematics
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Solve.Find the sum of the first 43 terms of the arithmetic sequence: 2, 4, 6, 8, . . .
A. 1935 B. 88 C. 1902 D. 1892
Mathematics
Solve the equation. Check your solution.- 
(x + 6) + 
(x + 4) = x - 2
A. 
B. 
C. 
D. 
Mathematics
Set up the percent proportion, and write "unknown" for the value that is not given. Recall that the percent proportion is 
= 
. Do not try to solve for any unknowns.What is 131% of 50?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics
Find the indicated coefficient or term.The 7th term in the expansion of (4x + 2y)10
A. 1,720,320x6y4 B. 860,160x6y4 C. 3,440,640x4y6 D. 1,720,320x4y7
Mathematics