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