Translate into an equation, then solve.Ken is to receive 670 cc of insulin in three injections. The first injection is to be 
. The second injection is to be 235 cc. How much insulin must be given for the third injection?
A. 185 - 235 + x = 670; x = 250 cc
B. 185 + 235 + x = 670; x = 720 cc
C. 185 - 235 + x = 670; x = 720 cc
D. 185 + 235 + x = 670; x = 250 cc
Answer: D
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Solve the problem. Round to the nearest dollar.The cost of a home on a particular island is 
The bank requires a 
down payment and three points at the time of closing. The cost of the home is financed with a 
fixed rate at 
a. Find the required down payment.b. Find the amount of the mortgage.c. Find the amount that must be paid for the
three points at closing.d. Find the monthly payment.e. Find the total cost of interest over 30 years.
A. 
B. a. $80,000; b. $920,000; c. $27,600; d.$6751; e. $1,510,360
C. a. $150,000; b. $1,000,000; c. $25,500; d.$6237; e. $1,245,320
D. a. $80,000; b. $1,000,000; c. $27,600; d.$6751; e. $1,430,360
Multiply and simplify.(
+ 
)2
A. 7x + 2
+ y
B. 49x2 + 
+ y2
C. 49x2 + 2
+ y2
D. 7x + 
+ y
A variable force of magnitude F(x) moves a body of mass m along the x-axis from x1 to x2. The net work done by the force in moving the body from x1 to x2 is 
where v1 and v2 are the body's velocities at x1 and x2. Knowing that the work done by the force equals the change in the body's kinetic energy, solve the problem.A 2-oz tennis ball was served at 130 ft/sec about (89 mph). How much work was done on the ball to make it go this fast? (To find the ball's mass from its weight, express the weight in pounds and divide by 32 ft/sec2, the acceleration of gravity.)
A. 31 ft-lb B. 33 ft-lb C. 66 ft-lb D. 15 ft-lb
A farmer wishes to work out the average milk yield in his herd that consists of an equal number of Ayrshire, Friesian, Galloway, and Jersey cows.Suppose the farmer selects the first 3 cows of each type that he milks to be in his sample. What type of sampling is being used?
A. capture-recapture B. stratified sampling C. quota sampling D. convenience sampling E. simple random sampling