Evaluate.Let a = 
. Find 9a.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the exact value of the sum.cos 
+ cos 
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.Solve the quadratic equation: x2 = 36
A. x = 36 B. x = 6 C. x = 36, -36 D. x = 6, -6
Mathematics
Solve.Mike filled his car's gas tank and noted that the odometer read 26,067.5. After the next filling, the odometer read 26,658.2. It took 16.5 gal to fill the tank. How many miles per gallon did the car get?
A. 36.8 mpg B. 36.1 mpg C. 35.1 mpg D. 35.8 mpg
Mathematics
Find the function represented by the line.
A. f(x) = -3x
B. f(x) = 3x
C. f(x) = 
x
D. f(x) = - 
x
Mathematics