For the given functions f and g , find the indicated composition.f(x) = 5x + 14,g(x) = 4x - 1(f?g)(x)
A. 20x + 55
B. 20x + 9
C. 20x + 19
D. 20x + 13
Answer: B
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Solve. Use ? = 3.14159 as needed.The blades of a fan have a radius of 15 in. and they turn one revolution every 0.075 sec. Calculate the linear speed of the tip of a blade. (Round to the nearest whole number, if necessary.)
A. 628 in./sec B. 800 in./sec C. 400 in./sec D. 1257 in./sec
Solve for the variable.
+ 
= - 
A. x = 
B. x = - 14
C. x = - 4
D. x = 4
Write the first five terms of the sequence described.Geometric, with a4 = 12 and r = 
A. 54, 18, 6, 2, 
B. 108, 36, 12, 4, 
C. 162, 54, 18, 6, 2
D. 324, 108, 36, 12, 4
Solve the problem.Andrew earns a gross weekly income of $561.41. How much Social Security tax should be withheld the first week of the year? How much Medicare tax should be withheld? Social security tax is 6.2% and Medicare tax is 1.45%. Round to the nearest cent.
A. Social Security tax = $34.81 Medicare tax = $8.14 B. Social Security tax = $3.48 Medicare tax = $0.81 C. Social Security tax = $35.81 Medicare tax = $9.14 D. Social Security tax = $348.10 Medicare tax = $81.40