Provide an appropriate response.
One end of a shaft 40 mm in diameter is milled as shown in the given figure. Find the radius of the smaller circle. 
A. 10 mm
B. 5 mm
C. 23.67 mm
D. 20 mm
Answer: A
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Solve the problem.Suppose that the revenue from selling x radios is r(x) = 70x - 
dollars. Use the function r '(x) to estimate the increase in revenue that will result from increasing production from 125 radios to 126 radios per week.
A. $45.00 B. $95.00 C. $57.50 D. $44.80
In 
, the lengths of the sides are a = 8, b = 10, and c = 12. To the nearest degree, find m
.
A. 75° B. 79° C. 83° D. 87°
An algebraic expression is given. Use the expression to answer the following questions. a) How many terms are there in the algebraic expression? b) What is the numerical coefficient of the first term? c) What is the constant term? d) Does the algebraic expression contain like terms? If so, what are the like terms?4y + 1 + 3x
A. a) 3 b) 3 c) 1 d) no B. a) 3 b) 4 c) 1 d) yes, 4y and 3x C. a) 2 b) 4 c) 1 d) no D. a) 3 b) 4 c) 1 d) no
Write the English phrase as an algebraic expression. Let x represent the number. Simplify the expression, if possible.The quotient of 61 and a number
A. 61x
B. 
C. 61 - x
D. 