Express the statement as an equation involving the indicated variables.The circumference C of a circle is the product of ? and its diameter d.
A. C = 2?d
B. C = ?d
C. C = 
D. C = ? + d
Answer: B
Mathematics
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Use the substitution formula to evaluate the integral.
A. 10 ln 3 B. -10 ln 3 C. 20 ln 3 D. -20 ln 3
Mathematics
The size of two matrices is given. Find the size of the product AB and the product BA, if the products exist.A is 2 × 4, B is 2 × 4.
A. AB is 2 × 4, BA is 4 × 2. B. AB is 4 × 2, BA is 2 × 4. C. AB is 2 × 2, BA is 4 × 4. D. AB is undefined, BA is undefined.
Mathematics
Find the horizontal asymptote(s), if any, of the graph of the rational function.g(x) = 
A. y = 1 B. y = -9 C. y = 7 D. no horizontal asymptote
Mathematics
Verify the identity.
= cot 
What will be an ideal response?
Mathematics