Solve the problem.A circle has a circumference of 60? meters. Find the radius, r, of the circle. (C = 2?r)
A. 15 m
B. 60 m
C. 30 m
D. 10 m
Answer: C
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Provide an appropriate response.Determine which technique would be the best initial step to verify each of the four identities below. Each of the identities involves a different technique as the initial step. 
= 
1 - 
= cos2 ? 
= 2 cot ? - 5 csc2 ? + tan2 ? - cot2 ? = sec2 ?Which of the following is not one of the four techniques required? I. Rewrite the
expression in terms of sines and cosines. II. Multiply the numerator and denominator of a quotient by the conjugate of the denominator. III. Use a Pythagorean identity. IV. Separate a quotient into one or more quotients. V. Use factoring techniques. A. technique V B. technique II C. technique III D. technique IV
Simplify the rational expression. Find all numbers that must be excluded from the domain of the simplified rational expression.
A. x + 6, x ? 6
B. 
, x ? 6
C. x - 6, x ? 6
D. 
, x ? -6
Write the number in words.While working as a stockbroker, Francois sold securities worth 
last year.
A. Six million, four hundred thousand, nine hundred dollars B. Six million, four thousand, nine dollars C. Six million, four thousand, nine hundred dollars D. Six million, four hundred thousand, nine dollars
Verify the identity.
= 
What will be an ideal response?