Perform the indicated operations.(-3x2 + 2) - (-x3 + 6x2 + 10)
A. x3 + 3x2 + 12
B. -2x3 + 6x2 - 8
C. x3 - 9x2 - 8
D. -2x3 + 8x2 - 10
Answer: C
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Solve the problem.Robin is having her yard landscaped. She obtained an estimate from two landscaping companies. Company A gave an estimate of $210 for materials and equipment rental plus $60 per hour for labor. Company B gave and estimate of $270 for materials and equipment rental plus $45 per hour for labor. Create a cost equation for each company where y is the total cost of the landscaping and x is the number of hours of labor. Determine how many hours of labor will be required for the two companies to cost the same.
A. 8 hr B. 3 hr C. 7 hr D. 4 hr
A lighthouse on an island is located at the origin of a coordinate system. East points to the positive x-axis, and north points to the the positive y-axis. Find the bearing of a ship located at the given point. Round the angle measure to the nearest degree where necessary.(5, -5)
A. N 45° E B. S 45° W C. N 45° W D. S 45° E
Plot a scatter diagram.
A.
B.
C.
D.
Find the integral.
A. 3 ln + C
B. ln + C
C. ln
+ C
D. ln (3x + 1) + C