Factor. Check by multiplying.21x4y + 15xy3
A. xy(21x3 + 15y2)
B. 3y(7x4 + 5xy2)
C. 3xy(7x3 + 5y2)
D. 3x(7x3y + 5y3)
Answer: C
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Provide an appropriate response.The profit function for a product is given by P(x) = 28x + x2 - 960. Determine for what values of x the profit is positive.
Fill in the blank(s) with the appropriate word(s).
Provide an appropriate response.A surveyor starts at point A on a triangular piece of land and determines angle A and the two sides AB and AC as shown. Find angle C to the nearest 0.1°.
A. 85.3° B. 25.2° C. 1554.8° D. 69.8°
Use the product rule to simplify the expression. Assume that the variables can be any real number.
A. 3xy
B. -7xy
C. -7xy
D. 7xy
Graph the linear equation and determine its slope, if it exists.2x - 5y = 20
A. slope = - 
B. slope = - 
C. slope = 
D. slope = 
