Use Fundamental Identities and/or the Complementary Angle Theorem to find the exact value of the expression. Do not use a calculator.tan 20° - 

A. 1
B. 0
C. 20
D. undefined

Answer: B

Mathematics

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Classify by type (cardinal, ordinal, or nominal) the number that appears in the sentence.Monti ordered catalog item number 96325.

A. Cardinal B. Ordinal C. Nominal

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Find the ordinary interest or exact interest as specified. Round to the nearest cent.Robert Hall opened a maid service company. To pay for startup costs, he borrowed $76,000 from a bank at 8% for 1 year. Find the ordinary interest.

A. $6080 B. $82,080 C. $6840 D. $608

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Mathematics

Solve for the indicated variable.a + b = s + r, for s

A. s =  + b 
B. s = r(a + b)
C. s = a + b - r 
D. s =  

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Mathematics

Find an equation of a parabola satisfying the given conditions.Focus at (4, 0), directrix x = -4

A. y2 = -16x
B. y = x2
C. x = y2
D. -16y = x2

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Mathematics