Solve.There are currently 75 million cars in a certain country, increasing exponentially by 3.8% annually. How many years will it take for this country to have 90 million cars? Round to the nearest year.
A. 5 yr
B. 3 yr
C. 4 yr
D. 71 yr
Answer: A
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Find the area of the shaded region.
y = -x4
A. 
B. 
C. 2
D. 
Decide whether the statement is true or false.If p is false then the statement q ? (~p ? q) must be true.
A. True B. False
Provide an appropriate response.A horizontal beam safely supports a load P that varies jointly as the product of the width W of the beam and the square of the depth D and inversely as the length L. A beam that has a width of 10 in, depth of 18 in. and a length of 70 in. can safely support 1,944 lb. Determine the safe load in pounds of a beam made from the same material if the beam is 60 in. long.
A. 2,268 lb B. 1,417.5 lb C. 74 lb D. 420 lb
A zoo veterinarian can purchase animal food of 4 different types, A, B, C, and D. Each food comes in the same size bag, and the number of grams of each of three nutrients in each bag are summarized in the following table. Use this information to answer the questions that follow. Food
For one animal, she determines that she needs to combine these bags to get 9000 g of N1, 19,000 g of N2, and 17,000 g of N3. Use the matrix operations on a graphing calculator to determine how many bags of each type of food should she order.
What will be an ideal response?