Multiply or divide as indicated. Write the answer in lowest terms.
? 
A. 
B. 
C. 
D. 
Answer: C
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Graph the parabola or ellipse. Include the directrix that corresponds to the focus at the origin.r = 
A. 
B. 
C. 
D. 
Provide an appropriate response.
(i) List the sequence of hexagonal numbers. that corresponds to the sequence of dot patterns above. These are called (ii) What is the ninth hexagonal number?(III) Determine a formula for the nth pentagonal number pn.
A. (i) 1, 7, 22, 50, .... (ii) Ninth hexagonal number: 170 (iii) hn = (n + 1)(2n - 1) B. (i) 1, 6, 15, 28, .... (ii) Ninth hexagonal number: 41 (iii) hn = 5n - 4 C. (i) 1, 6, 15, 28, .... (ii) Ninth hexagonal number: 153 (iii) hn = n(2n - 1) D. (i) 1, 7, 22, 50, .... (ii) Ninth hexagonal number: 144 (iii) hn = 2n(n - 1)
Provide an appropriate response.If f(x) = 
, then find 
and simplify.
What will be an ideal response?
Find the exact value of the expression.
A. -2
B. - 
C. -
D. - 