Add or subtract. Assume all variables represent positive real numbers.9
+ 4
A. 13
B. 13
C. 9
+ 4
D. 36
Answer: C
Mathematics
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Solve the following system by any appropriate method. If there is no real number solution, so state.y2 + 3x2 = 37y2 - x2 = 1
A. (3, -
), (3, 
)
B. (4, 
), (4, -
), (-4, 
), (-4, -
)
C. (3, 
), (-3, 
)
D. (3, 
), (3, -
), (-3, 
), (-3, -
)
Mathematics
Evaluate.
A. 35
B. 280
C. 70
D. 
Mathematics
The point P on the unit circle that corresponds to a real number t is given. Find the indicated trigonometric function.
?Find cos t.
A. 
B. - 
C. - 
D. 
Mathematics
Solve the problem.Kimberly invested 
in her savings account for 7 years. When she withdrew it, she had 
. Interest was compounded continuously. What was the interest rate on the account? Round to the nearest tenth of a percent.
A. 2.3% B. 2.45% C. 2.4% D. 2.2%
Mathematics