Evaluate the expression when x = 2, y = 1, and z = 4.5z2
A. 30
B. 21
C. 80
D. 40
Answer: C
Mathematics
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Solve the system by elimination.9x2 + y2 = 819x2 - y2 = 81
A. (0, 3), (0, -3) B. (3, 0), (-3, 0) C. (0, 9), (0, -9) D. (9, 0), (-9, 0)
Mathematics
Decide whether or not the ordered pair is a solution of the system.(-2, 2)x + y = 0x - y = -4
A. Yes B. No
Mathematics
Consider the function 
at 
.
?
Use the second Taylor polynomial to approximate 
. Round the answer to six decimal places, if necessary.
?
__________
?
Find a bound for the error in the approximation. Round the answer to five decimal places, if necessary.
?
__________
What will be an ideal response?
Mathematics
In the figure, m
= 90° and m
= 29°. If c = 17.4, find b to the nearest tenth of unit..
A. 15.2 B. 16.3 C. 8.4 D. 19.9
Mathematics