Solve using matrices.6x + 4y = 93x - y = 9
A. 
B. 
C. 
D. 
Answer: D
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The growth rate G, in hundreds of cases per day, in the spread of an epidemic depends on the number S, in hundreds, of currently sick individuals. The relationship is given by
?
.
A: Make a graph of G versus S. Include up to 4,000 currently sick people (corresponding to 
).B: There are two numbers of currently sick individuals that give a growth rate of 500 new cases per day (corresponding to 
). Find both of them.C: When there are no sick individuals, the growth rate is 0. There is a second level where the growth rate is 0. Find that number of currently sick people.
?
Round your answer to two decimal places if necessary.
What will be an ideal response?
Use a calculator to find the acute angle between the planes to the nearest thousandth of a radian.6x + 10y + 10z = 6 and 3x + 8y + 2z = 8
A. 1.066 rad B. 0.505 rad C. 1.377 rad D. 0.917 rad
Solve the problem.This chart shows the fees for an 18-hole round of golf for each of the last 5 years at a local municipal golf course. Assume that this chart defines a function with the name of f. State the domain of f.
A. {(2008, 22), (2009, 24), (2010, 26), (2011, 26), (2012, 30)} B. {2008, 2009, 2010, 2011, 2012} C. {(22, 2008), (24, 2009), (26, 2010), (26, 2011), (30, 2012)} D. {22, 24, 26, 30}
Find the real solutions, if any, of the equation. Use the quadratic formula and a calculator. Express any solutions rounded to two decimal places. Use 3.14 to approximate ?.?x2 + ?x - 4 = 0
A. {-1.73, -0.73} B. {-0.73, 1.73} C. {-1.73, 0.73} D. {0.73, 1.73}