Name the property illustrated by the statement.7(x + 6) = 7x + 7 ? 6
A. associative property of multiplication
B. identity property of multiplication
C. distributive property
D. commutative property of addition
Answer: C
Mathematics
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Write a formula for the general term (the nth term) of the arithmetic sequence. Then use the formula for an to find a20, the 20th term of the sequence.a1 = 4, d = 0.8
A. an = 4n - 3.2; a20 = 76.8 B. an = 0.8n + 4; a20 = 20 C. an = 0.8n + 3.2; a20 = 19.2 D. an = 4n + 0.8; a20 = 80.8
Mathematics
Estimate the sum or difference by first rounding each number to the nearest ten.532.432 - 224.03
A. 290 B. 320 C. 310 D. 300
Mathematics
Simplify the expression. Assume that variables represent nonzero numbers.
2
A. 
B. 
C. 
D. 
Mathematics
Multiply.3(2r + 7 + 2s)
A. 6r + 7 + 6s B. 6r + 21 + 6s C. 6r + 7 + 2s D. 6r + 21 + 2s
Mathematics