Add or subtract. Express the answer as a mixed number.13 - 7

A. 4
B. 6
C. 5
D. 5


Answer: C

Mathematics

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Graph the linear inequality.x - y > -5

A.

B.

C.

D.

Mathematics

Find the indicated root of the given quadratic equation by finding x3 from Newton's method (choose x0 to be the midpoint of the given interval).7x2 - 5x - 3 = 0 (between 1 and 2)

A. 1.1058005 B. 1.1034699 C. 1.1028790 D. 1.1028847

Mathematics

150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with mean ? = 65 and standard deviation ? = 10.Approximately how many students had test scores with standardized values between -0.675 and 1?

A. 37 B. 75 C. 140 D. 88 E. none of these

Mathematics

Solve the problem.The velocity of a body of mass m falling from rest under the action of gravity is given by the equation  where k is a constant that depends on the body's aerodynamic properties and the density of the air, g is the gravitational constant, and t is the number of seconds into the fall. Find the limiting velocity, limt?? v, of a 320 lb. skydiver (mg = 320) when k = .006.

A. 230.94 ft/sec B. There is no limiting speed. C. 73.03 ft/sec D. 0.00 ft/sec

Mathematics