Convert to rectangular coordinates.
A. (-2, -2
)
B. (2, -2
)
C. (-2, 2
)
D. (2, 2
)
Answer: C
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Evaluate the expression according to the replacement value given.5x2 + 7x; replace x with 4.
A. 108 B. 68 C. 52 D. 48
Solve the problem.A plane flying a straight course observes a mountain at a bearing of 30.1° to the right of its course. At that time the plane is 
from the mountain. A short time later, the bearing to the mountain becomes 40.1°. How far is the plane from the mountain when the second bearing is taken (to the nearest tenth of a km)?
A. 14.6 km B. 7.8 km C. 5.2 km D. 12.8 km
Solve the problem.Let the demand and supply functions be represented by D(p) and S(p), where p is the price in dollars. Find the equilibrium price and equilibrium quantity for the given functions.D(p) = 124,160 - 280pS(p) = 690p
A. $410; 9360 B. $179; 74,040 C. $128; 88,320 D. $410; 88,320
Solve the equation.6x + 2 = 26
A. x = 2 B. x = 22 C. x = 18 D. x = 4