Use the properties of exponents and radicals to determine the value for x that makes the equation true.
?
?
A. 
B. 5
C. 
D. 10
E. 
Answer: C
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Evaluate the double integral over the given region.
R: 5 ? x ? 7, 5 ? y ? 7
A. 
2
B. 
2
C. ln 
D. 
Solve the problem.A projectile is fired from a cliff 300 feet above the water at an inclination of 45° to the horizontal, with a muzzle velocity of 300 feet per second. The height h of the projectile above the water is given by 
where x is the horizontal distance of the projectile from the base of the cliff. How far from the base of the cliff is the height of the projectile a maximum?
A. 703.13 ft B. 1003.13 ft C. 2409.38 ft D. 1406.25 ft
Add or subtract, as indicated. Assume that all variables represent positive real numbers.8
+ 16
- 
A. -8
B. -24
C. 23
D. 9
Solve the problem.Eduardo has a balance of $3265.96 on a credit card with an annual percentage rate (APR) of 12.6%. His credit card requires a minimum monthly payment of 2% of the balance. If he transfers his balance to a credit card with an APR of 8.5% how much of his first payment would be interest and how much would be applied to reduce the principal?
A. Interest: $23.13; amount applied to principal: $42.19 B. Interest: $34.29; amount applied to principal: $31.03 C. Interest: $34.29; amount applied to principal: $36.14 D. Interest: $23.13; amount applied to principal: $47.51