Write the complex number in rectangular form.5
A. 
- 
i
B. - 
+ 
i
C. 
- 
i
D. - 
+ 
i
Answer: A
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Convert the mass or weight as indicated. Round the answer to two decimal places if necessary.520 grams to ounces
A. 14,742 oz B. 18.34 oz C. 15,376.4 oz D. 17.59 oz
Solve the problem.A ball is thrown vertically upward with an initial velocity of 192 feet per second. The distance in feet of the ball from the ground after t seconds is 
For what intervals of time is the ball less than 512 above the ground (after it is tossed until it returns to the ground)?
A. {x ? 4 sec < x < 8 sec} B. {x ? 0 sec < x < 3.5 sec and 8.5 sec > x > 12 sec} C. {x ? 0 sec < x < 5.5 sec and 6.5 sec > x > 12 sec} D. {x ? 0 sec < x < 4 sec and 8 sec > x > 12 sec}
Find the indicated cross product.v = -6i + 2j, w = 2i - 4kFind w × v.
A. 4i - 8j + 8k B. 8j + 12k C. 8i + 24j + 4k D. -24i - 8j + 4k
Solve.An airplane is flying at an altitude of 3200 ft toward an island. The straight line distance from the airplane to the island is d feet. Express ?, the angle of depression, as an inverse sine function.
A. ? = sin-1 
B. ? = sin-1 
C. ? = sin-1 
D. ? = sin-1 