Multiply.(9m + 11)2
A. 81m2 + 121
B. 9m2 + 121
C. 81m2 + 198m + 121
D. 9m2 + 198m + 121
Answer: C
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Find the exact value of the expression.cos 40° cos 20° - sin 40° sin 20°
A. 
B. 
C. 
D. 
Make the indicated temperature conversion. Round answers to one decimal place if necessary.Convert 72°C to Fahrenheit.
A. 97.6°F B. 61°F C. 25.4°F D. 161.6°F
Complete the table. Then determine the x-intercept and y-intercept for the graph of the equation.y = 3x + 21 
A. 
x-intercept: 21; y-intercept: -7
B. 
x-intercept: -7; y-intercept: -21
C. 
x-intercept: -7; y-intercept: 21
D. 
x-intercept: 7; y-intercept: 21
Solve the problem by using addition, subtraction, multiplication, or division as needed.Charles is planning a bicycle trip. If he bikes an average of 57 miles a day, find the maximum distance he can cover in 14 days.
A. 171 miles B. 71 miles C. 798 miles D. 788 miles