Write a signed number for the statement.21° above zero
A. -21
B. 21
Answer: B
Mathematics
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Find the indicated probability. Round your answer to 6 decimal places when necessary.If you are dealt two cards successively (with replacement of the first) from a standard 52-card deck, find the probability of getting a heart on the first card and a diamond on the second.
A. 
B. 
C. 
D. 
Mathematics
Show that the equation is not an identity by listing the value(s) of the variable from among 0, 
, 
, and - 
for which the equation is false.sin ? + cos ? = 1
A. 
and - 
B. 
and 0
C. 
, 
, and 0
D. 
, 
, and - 
Mathematics
Find the sum of the first five terms of the sequence with the following general term. ? 9k0
Fill in the blank(s) with the appropriate word(s).
Mathematics
Use the order of operations agreement to simplify the given expression.
2 ? 
A. - 
B. - 
C. 
D. 
Mathematics