Use the commutative law of multiplication to write an equivalent expression.3a + b
A. b + 3a
B. a + 3b
C. 3(a + b)
D. a3 + b
Answer: D
Mathematics
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Perform the indicated division and find a simplified expression.A patio has an area of 2m3 + 13m2 + 8m - 45. Find the length if the width is 2m + 9.
A. m3 + 2m2 - 5m B. m2 - 2m + 5 C. m2 + 2m - 5 D. m2 + 11m - 5
Mathematics
Factor completely.25z4 - 10z2 - 8
A. (5z2 + 2)(5z2 - 4) B. (5z4 + 2)(5z - 4) C. (5z2 + 4)(5z2 - 2) D. (5z4 + 4)(5z - 2)
Mathematics
Perform the indicated operation(s). Simplify if possible.
- 
A. 
B. 2
C. 
D. 
Mathematics
Write the augmented matrix for the system. Do not solve the system. 7x + 3z - 2 = 0 2y + 6z - 20 = 0 3x + 9y + 2z - 12 = 0
A. 
B. 
C. 
D. 
Mathematics