Multiply.(3xy2 + xy)2
A. 6x2y4 + 6x2y3 + x2y2
B. 9x2y4 + 9x2y3 + x2y2
C. 9x2y4 + 6x2y3 + x2y2
D. 9x2y4 + x2y2
Answer: C
Mathematics
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using a Reimann sum with n = 4 .
What will be an ideal response?
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A board foot is the volume of a piece of wood 1 foot by 1 foot by 1 inch. A deck is designed as shown below. One inch by six inch boards are to be used for the surface of the deck. How many board feet are required for this part of the job?
Mathematics
Write as the sum and/or difference of logarithms. Express powers as factors. log7
A. 
log7p + 
log7q - 
log717
B. 
log7p ? 
log7q ÷ 
log717
C. 
log7pq - 
log717
D. 
log7p + 
log7q - log717
Mathematics
Use the echelon method to solve the system of two equations in two unknowns.-7x + 5y = 14 3x + 3y = -6
A. (-2, 1) B. (-3, 1) C. (-2, 0) D. No solution
Mathematics