If s denotes the length of the arc of a circle of radius r subtended by a central angle ?, find the missing quantity.r = 11.7 inches, ? = 315°, s = ?
A. 64.5 in.
B. 64.4 in.
C. 64.6 in.
D. 64.3 in.
Answer: D
Mathematics
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a. 
b. 
c. 
d. 
e. 
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Classify the equation as a conditional equation, an identity, or a contradiction. Find the solution set.18(x - 1) = 2(9x + 2) - 22
A. Contradiction; ? B. Conditional; {0} C. Conditional; {-18} D. Identity; {all real numbers}
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Factor and simplify the algebraic expression.(x + 2)1/4 + (x + 2)3/4
A. (x + 2)1/2 (1 + (x + 2)3/2) B. (x + 2)1/2 (1 + (x + 2)1/4) C. (x + 2)1/2 ((x + 2)1/2 + 1) D. (x + 2)1/4 (1 + (x + 2)1/2)
Mathematics
Use a calculator to estimate the limit.
A. ? B. -? C. 0 D. does not exist
Mathematics