For the given angle of rotation and coordinates of a point in the xy-coordinate system, find the coordinates of the point in the x'y'-coordinate system.? = 60°, (-7
, 0)
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Use a power regression model for the following data to estimate 
. Round your answer to two decimal places.
x 1 3 4 7 8 y 4.67 14.34 20.94 41.18 45.49?
A. 18.79 B. 19.31 C. 80.46 D. 78.82
Mathematics
Evaluate the expression  figure 1.png)
and write the result in the form a + bi.
(a) -1 (b) 1 (c) i (d) - i (e) none of these
Mathematics
Add or subtract as indicated. Simplify, if necessary.
- 
A. - 
B. 
C. 
D. - 
Mathematics
Solve the problem.The appliance store where the Scott family shops offers a 8% discount for paying cash. The Scott family received a discount of $47. What was their total bill before the discount?
A. $587.50 B. $376.00 C. $3.76 D. $5.88
Mathematics