Using the table, set up proportions to solve.The table shows a scale for the cost of sending printed matter to different countries using the services of an undisclosed courier.Ginny mailed a package to Korea. If her shipping cost was $1.42, how much did the package weigh?

A. 4.6 lb
B. 4.5 lb
C. 4.8 lb
D. 5.2 lb


Answer: B

Mathematics

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Find the average value of    over the given region.  over the cube in the first octant bounded by the coordinate planes and the planes 

A.
B.
C.
D.

Mathematics

Solve the problem.The temperature (in degrees Fahrenheit) of a dead body that has been cooling in a room set at 70° is measured as 88°. One hour later, the body temperature is 87.5°. How long (to the nearest hour) before the first measurement was the time of death, assuming that the body temperature of the deceased at the time of death was 98.6°. Assume the cooling follows Newton's Law of Cooling:   U = T + (Uo - T)ekt.

What will be an ideal response?

Mathematics

List the critical values of the related function. Then solve the inequality. +  < 0

A. 2, 3; (-?, 2) ? (3, ?) B. -3, -2; (-?, -3) ? (-2, ?) C. -3, -2; (-3, -2) D. 2, 3; (2, 3)

Mathematics

Find the indicated matrix.Let A =  and B = . Find A + B.

A.
B.
C.
D.

Mathematics