Express the product as a sum containing only sines or cosines.sin(9?) sin(5?)
A. sin2(45?2)
B. 
[ cos(4?) - cos(14?)]
C. 
[cos(14?) - cos(4?)]
D. 
[sin(14?) + cos(4?)]
Answer: B
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First, create a scatter plot for the data in the table. Then, use the shape of the scatter plot given to determine if the data are best modeled by a linear function, an exponential function, a logarithmic function, or a quadratic function.
A. 
quadratic function
B. 
logarithmic function
C. 
exponential function
D. 
linear function
The scores on a 30-point multiple-choice exam are given in the following frequency table:
The median score on the exam is
A. 25. B. 26.5. C. 26. D. 25.5. E. none of these
Solve.Austin and Rachel Williams are taking a trip and plan to travel 2080 miles. Their car gets 32.8 miles per gallon. Approximate how many gallons of gasoline their car will use by rounding 32.8 to the nearest ten. Round the result to the nearest gallon.
A. 6239 gallons B. 69 gallons C. 70 gallons D. 6240 gallons
Solve the problem.When 40% of a number is added to the number, the result is 168. What is the number?
A. 140 B. 29 C. 120 D. 48