Find the exact value under the given conditions.sin ? = 
, 0 < ? < 
; cos ? = 
, 0 < ? < 
Find cos (? + ?).
A. - 
B. 
C. 
D. 
Answer: B
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Provide an appropriate response.Which of the following will not contribute to maintaining a balanced federal budget?
A. Reducing discretionary spending B. Large tax increases C. Increasing Social Security benefits D. Balancing yearly receipts and outlays
Provide an appropriate response.Simplify: |-8|
Fill in the blank(s) with the appropriate word(s).
Answer the question.In a school survey, students showed these preferences for instructional materials. Answer the question.
About how many students would you expect to prefer computers in a school of 850 students?
A. About 306 students B. About 36 students C. About 170 students D. About 153 students
What type of research is designed to discover causal relationships between various factors?
A. correlational B. hypothetical C. experimental D. theoretical