Find the area of the isosceles trapezoid shown below. Round your answer to the nearest hundredth.
30.30 sq. in.
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Use a computer algebra system (CAS) to solve the given initial value problem.y' = 
, y(0) = 4
A. y = 8 tan-1 x - 4x
B. y = 4 ln
- 4x + 4
C. y = 5 tan-1 x - x + 4
D. y = 8 tan-1 x - 4x + 4
Find all cube roots of the complex number. Leave answers in trigonometric form.-3
+ 3i
A. 
cis 50°, 
cis 170°, 
cis 290°
B. 
cis 70°, 
cis 190°, 
cis 310°
C. 
cis 70°, 
cis 190°, 
cis 310°
D. 
cis 50°, 
cis 170°, 
cis 270°
Solve the problem.A projectile is fired with an initial velocity of 600 feet per second at an angle of 45° with the horizontal. In how many seconds will the projectile strike the ground? (Round your answer to the nearest tenth of a second.)
A. 23.1 sec B. 31.3 sec C. 26.5 sec D. 34.6 sec
Find an equation for the line with the given properties.Vertical line; containing the point (3, -9)
A. y = -9 B. x = 3 C. x = -9 D. y = 3