Determine if the following is an identity.tan2x = sec2x - sin2x - cos2x
A. Not an identity
B. Identity
Answer: B
Mathematics
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Solve the problem.If the price charged for a candy bar is p(x) cents, then x thousand candy bars will be sold in a certain city, where p(x) = 100 - 
. How many candy bars must be sold to maximize revenue?
A. 1800 thousand candy bars B. 3600 thousand candy bars C. 1800 candy bars D. 3600 candy bars
Mathematics
Write the set in set-builder notation.{7}
A. {x | x is a natural number} B. {x | x is the natural number 7} C. {x} D. {x is a constant}
Mathematics
Find the missing expression.
- 
= 
A. -5x + 2 B. 5x - 4 C. 5x + 4 D. -5x - 2
Mathematics
Write the place value of the underlined numeral.
,908
A. Tens B. Thousands C. Units D. Hundreds
Mathematics