Find z1z2. Write the answer in polar form with the argument between 0° and 360°.z1 = 5(cos 35° + i sin 35°), z2 = 2(cos 40° + i sin 40°)
A. 10(cos 50.9° + i sin 50.9°)
B. 10(cos 75° + i sin 75°)
C. 7(cos 50.9° + i sin 50.9°)
D. 7(cos 75° + i sin 75°)
Answer: B
Mathematics
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Simplify the algebraic expression by combining like terms.3(y + 10) - 6
A. 13y - 6 B. 3y + 24 C. 3y + 12 D. 3y + 4
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Solve the problem.A circular pond is being installed in the corner of a yard, as shown. The installer needs to know the value of x in feet. Find x to the nearest tenth of a foot. 
?15 ft
A. 4.6 ft B. 4 ft C. 3.7 ft D. 4.4 ft
Mathematics
Write the slope-intercept form of the equation for the line passing through the given pair of points.
and 
A. y = 2x
B. y = 2x - 
C. y = 4x + 10
D. y = 2x + 1
Mathematics
Complete.7
gal = qt
A. 28 B. 58 C. 29 D. 14
Mathematics