Find the general solution for the differential equation.x
+ 2xy - x2 = 0
A. y = 
- 
+ Ce2x
B. y = 
+ 
+ Ce2x
C. y = 
- 
+ Ce-2x
D. y = 
- 
+ Ce-2x
Answer: C
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Solve the problem.Find the mass, in metric tonnes, of sand in a box that measures 14 m × 10 m × 17 m.
A. 2890 t B. 1400 t C. 2380 t D. 3332 t
Find the opposite of the polynomial.-7a3 + 7a2 + 7a - 4
A. -7a3 + 7a2 + 7a + 4 B. 7a3 - 7a2 - 7a + 4 C. 7a3 + 7a2 + 7a - 4 D. -7a3 - 7a2 - 7a - 4
Prepare a probability distribution for the experiment. Let x represent the random variable, and let P represent the probability.Two marbles are drawn from a bag in which there are 4 red marble and 2 blue marble. The number of blue marbles is counted.
A. 
B. 
C. 
D. 
Solve.A baseball pitcher throws a baseball with an initial speed of 138 feet per second at an angle of 20° to the horizontal. The ball leaves the pitcher's hand at a height of 5 feet. Find parametric equations that describe the motion of the ball as a function of time. How long is the ball in the air? When is the ball at its maximum height? What is the maximum height of the ball?
A. x = 129.68t and y = -16t2 + 47.2t + 5 2.84 sec, 1.475 sec, 4.998 feet B. x = 129.68t and y = -16t2 + 47.2t + 5 5.68 sec, 1.475 sec, 283.48 feet C. x = 129.68t and y = -16t2 + 47.2t + 5 6.105 sec, 1.475 sec, 34.81 feet D. x = 129.68t and y = -16t2 + 47.2t + 5 3.052 sec, 1.475 sec, 39.81 feet