Add or subtract as indicated. Express the answer as a single polynomial in standard form.7(1 - y3) - 5(1 + y + y2 + y3)
A. 12y3 - 5y2 - 5y + 2
B. -12y3 - 5 - ay2 - 5y + 2
C. -12y3 + 5y2 - 5y - 2
D. -12y3 - 5y2 - 5y + 2
Answer: D
Mathematics
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Express the integrand as a sum of partial fractions and evaluate the integral.
dx
A. 2 ln
+ 4 ln
- 3 ln
+ C
B. 2 ln
- 3 ln
+ 4 ln
+ C
C. ln
- ln
+ ln
+ C
D. -3 ln
+ 4 ln
+ C
Mathematics
Graph the polar equation.r = - 
+ cos ?
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.If a rock falls from a height of 70 meters above the ground, the height H (in meters) after x seconds can be approximated using the formula H = 70 - 4.9x2. What is the height of the rock after 2 seconds?
A. 60.2 m B. 260.4 m C. -26.04 m D. 50.4 m
Mathematics
Provide an appropriate response.Write fourteen and seven hundred forty-seven thousandths using numbers.
A. 14.747 B. 14,747 C. 0.14747 D. 14.0747
Mathematics