Identify the equation as either an identity or not.sin ? sec ? = cos ? csc ?
A. Not an identity
B. Identity
Answer: A
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Calculate.7 ? 42 + 1 ? 7 - 2( 2 + 3)
A. 118 B. 781 C. 109 D. 25
Find the percent using a proportion. Round your answer to the nearest tenth if necessary.95.0 yards is what percent of 9 yards?
A. 1055.6% B. 1% C. 10,556% D. 9.5%
Use words such as linear, quadratic, cubic, polynomial, degree, one variable, and two variables to describe the expression.12z2 + z
A. 12th - degree polynomial in one variable B. quadratic, not a polynomial C. quadratic (2nd - degree) polynomial in two variables D. quadratic (2nd - degree) polynomial in one variable
Solve the problem.A weather forecaster predicts that the temperature will drop 3 degrees each hour for the next 8 hours. If the temperature is 4 degrees before the temperature starts falling, what is the temperature after the drop?
A. 24° B. -7° C. -20° D. -24°