Solve.
- 3 = 12
A. {15, 9}
B. {-9, 9}
C. {-21, 9}
D. {-3, 9}
Answer: C
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Solve the system of equations by determinants. 3w + x - 3y + z = -8-w + 3x + y - 3z = 45w - x + 3y + 3z = 36 w + x - 3y - z = -12
A. w = 5, x = -4, y = 0, z = 3 B. w = 5, x = -2, y = 6, z = -3 C. w = -5, x = -6, y = 12, z = 3 D. w = -2, x = 4, y = 7, z = 1
Find the area.Find the area of a rectangle measuring 5
mi by 5
mi.
A. 22 mi2
B. 30
mi2
C. 25
mi2
D. 11 mi2
Solve the problem.A projectile is fired from a cliff 600 feet above the water at an inclination of 45° to the horizontal, with a muzzle velocity of 350 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. Find the maximum height of the projectile.
A. 3471.09 ft B. 1914.06 ft C. 1557.03 ft D. 957.03 ft
If you deposit $5000 into a fund paying 6% interest compounded quarterly, how much can you withdraw at the end of each quarter for five years?
A. $970.45 B. $291.23 C. $215.17 D. $216.23 E. none of these