Find the magnitude or direction angle of the given vector as indicated.v = 7[(cos 135°)i + (sin 135°)j]; Find the direction angle ?.
A. 135°
B. 225°
C. 45°
D. 30°
Answer: A
Mathematics
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Find the area of the specified region.Inside the circle r = -4 cos ? and outside the circle r = 2
A. 
(4? - 3
)
B. 
?
C. 
(2? + 3
)
D. 2?
Mathematics
Solve the problem.Assume that a population is growing initially at a rate of 10%. If P0 = 0.3, use the logistic growth model to compute the value of P2.
A. 0.29 B. 0.34 C. 0.27 D. 0.47
Mathematics
Find the center of mass (in cm) of the particles with the given masses located at the given points on the x-axis.17 g at (4.9, 0), 23 g at (-9.8, 0), 31 g at (2.5, 0), 44 g at (-8.2, 0)
A. -3.7 cm B. 40 cm C. 0.91 cm D. -11 cm
Mathematics
Decide if the given number is a solution to the given equation.p + 2 = 17; 15
A. No B. Yes
Mathematics