Use the identities for the cosine of a sum or a difference to write the expression as a single function of ?.cos (90° - ?)
A. -sin ?
B. -cos ?
C. cos ?
D. sin ?
Answer: D
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Write the negation of the following statement.p: Today is April 23.
A. ~p: Yesterday was not April 21. B. ~p: Today is not April 23. C. ~p: It is not true that today is April 24. D. ~p: Today is not April 24.
For the application, write a sentence answering the question.Byron rode his bicycle 7
miles on each of 3 days. What is the total distance he rode in the 3 days?
A. He rode 21
miles in 3 days.
B. He rode 21
miles in 3 days.
C. He rode 10
miles in 3 days.
D. He rode 21
miles in 3 days.
Find the sample standard deviation.5, 11, 16, 10, 5, 7, 15, 20, 16
A. 5.1 B. 25.8 C. 5.4 D. 29.0
Solve the problem.On a day of trading, the Dow Jones Industrial Average increased by 573 points to close at 1629. What was the value of the Dow when trading began that day?
A. 2102 points B. 956 points C. 2202 points D. 1056 points