Solve the exponential equation.3x2 + 5 x = 
A. -1 , -4
B. 1 , -4
C. 1 , 4
D. -1 , 4
Answer: A
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First, use front end rounding to estimate each answer. Then find the exact answer.A strip of road 3240 feet long is paved in blocks of 18 feet. How many such blocks are there?
A. estimate: 4000 ÷ 20 = 200 blocks; exact: 3240 ÷ 18 = 180 blocks B. estimate: 4000 ÷ 16 = 250 blocks; exact: 3240 ÷ 18 = 180 blocks C. estimate: 3000 ÷ 20 = 150 blocks; exact: 3240 ÷ 18 = 180 blocks D. estimate: 3000 ÷ 15 = 200 blocks; exact: 3240 ÷ 18 = 180 blocks
Analyze the graph of the given polar curve. Include the following information: If possible, describe the shape of the graph (circle, rose curve, limacon, etc.), and state the domain, range, and maximum r-value of the graph. State whether the graph is continuous and whether it is bounded. Describe any symmetry that the graph has. Give the equations of any asymptotes or state that the graph has no asymptotes.r = 6 - 6 cos ?
What will be an ideal response?
Indicate whether the graph represents a one-to-one function.
A. No B. Yes
The figure shows the graphs of the cost and revenue functions for a company that manufactures and sells binoculars. Use the information in the figure to answer the question.
What is the profit when 998 binoculars are produced?
A. $496 B. $3496 C. $5492 D. $2492