Find the specified vector or scalar.u = 12i - 3j, v = -3i + 8j; Find u + v.

A. 9i + 5j
B. 8i + 5j 
C. -15i + 5j
D. 15i + 8j 


Answer: A

Mathematics

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Solve.Wind resistance or atmospheric drag tends to slow down moving objects. Atmospheric drag varies jointly as an object's surface area A and velocity v. If a car traveling at a speed of 40 mph with a surface area of 37 ft2 experiences a drag of 192.4 N (Newtons), how fast must a car with 40 ft2 of surface area travel in order to experience a drag force of 291.2 N?

A. 61 mph B. 56 mph C. 58 mph D. 53 mph

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Plot the ordered pairs on the rectangular coordinate system provided.A(6, -4), B(-5, 5)

What will be an ideal response?

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Solve.x2 - 36y2 = 49x + 6y = 3

A.
B. No real number solution exist.
C.
D.

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Find the coordinates of the y-intercept for the given equation.x + 5y = 2

A. (10, 0)
B.
C. (0, 10)
D. (5, 10)

Mathematics