Let a?, a?, a?, . . , an, . . . be an arithmetic sequence with a? = 9 and a? = –72. Find r.
What will be an ideal response?
–2
Mathematics
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Find the exact circumference of the circle.
A. 1.8?2 ft B. 1.8? ft C. 3.6?2 ft D. 3.6? ft
Mathematics
Use the properties of logarithms to simplify the expression.ln cos ? - ln 
A. ln 4
B. ln 
C. ln 
D. ln cos ?
Mathematics
Evaluate f(x) at the given value of x by hand. f(x) = 
; x = 3
A. 
B. 
C. - 
D. 
Mathematics
Multiply the real numbers. Write any improper fraction as a whole or mixed number where appropriate.4(-7)
A. -28 B. -32 C. 28 D. 32
Mathematics