Determine whether the ordered pair is a solution for the equation.(5, -5); -2x + 9y = -55
A. No
B. Yes
Answer: B
Mathematics
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Write the sum without sigma notation and evaluate it.
A. 2 cos ? + 2 cos 
+ 2 cos 
+ 2 cos 
= 3 + 
B. 2 cos ? + 2 cos 
+ 2 cos 
+ 2 cos 
= -2 + 
+ 
C. 2 cos ? + 2 cos 
+ 2 cos 
+ 2 cos 
= -1 + 
D. 2 cos ? + 2 cos 
= -2 + 
Mathematics
Find the exact value of the product.cos
sin
A. 
B. - 
C. 
D. 
Mathematics
Add or subtract as indicated. Simplify, if necessary.- 
- 
A. 
B. - 
C. - 
D. - 
Mathematics
Find the expected value.A car agency has found daily demand to be as shown in the table.
Find the expected number of customers.
A. 9 B. 12 C. 10 D. 2
Mathematics