Simplify the series of additions and subtractions.
- 
+ 
- 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Choose the expression with exactly the same value as the given expression.sin(-21°)
A. cos(69°) B. sin(21°) C. -cos(69°) D. cos(-69°)
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Provide an appropriate response.
Using the given frequency distribution table for the 2-hour intervals of the temperatures for June 24, determine the average temperature which occurred during the 24-hour period. 
A. 82o B. 77o C. 92o D. 79.3o
Mathematics
Identify the group of terms as like or unlike.5b, 13, 6a
A. Unlike B. Like
Mathematics
Solve the problem.A certain mathematics test consists of 20 questions. Goldie decides to answer the questions without reading them. In how many ways can Goldie fill in the answer sheet if the possible answers are true and false?
A. 190 B. 400 C. 40 D. 1,048,576
Mathematics