Verify the identity.sec x + tan x = 
What will be an ideal response?
sec x + tan x = 
+ 
= 
= 
? 
= 
= 
= 
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Answer the question.Which of the following describes the bias that can occur when members of a study's sample are volunteers?
A. Single-blind bias B. Participation bias C. Sample bias D. Selection bias
Given the graph of f, find any values of x at which f ' is not defined.
A. x = -2, 2 B. x = -2, 0, 2 C. x = 0 D. Defined for all values of x
Solve the problem.Stephanie receives a salary of $650 per month plus a commission of 5.5% on the first $3,000 of sales, and 7% of all sales over $3,000. Find Stephanie's gross pay for the month if her sales were $10,110.
A. $2797.70 B. $662.70 C. $1522.70 D. $1312.70
Solve.An endangered species of fish has a population that is decreasing exponentially 
The population 9 years ago was 1500. Today, only 1000 of the fish are alive. Once the population drops below 100, the situation will be irreversible. When will this happen, according to the model? (Round to the nearest whole year.)
A. 51 years from today B. 50 years from today C. 53 years from today D. 52 years from today