Solve the problem.The five office workers at Southwest Appliances earned salaries last year of 
, 
, 
, 
, and 
. Find the mean salary.
A. $25,270
B. $26,600
C. $27,930
D. $29,260
Answer: B
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Solve the problem.A fractal is formed in the following way:Start with a square. Divide the square into 9 smaller squares of equal size and remove the center square. Repeat this process at each stage.Find the scale factor which is equal to the ratio 
Find the ratio 
for the fractalThe dimension of the fractal is between what two numbers?Use your calculator to approximate the dimension d to three decimal places. Remember that (scale factor)d = 
.
What will be an ideal response?
Provide an appropriate response.Suppose that a data set has a mean of 100 and a standard deviation of 5. If a positive number k is added to every item of the data set, how will this affect the mean and the standard deviation?
What will be an ideal response?
Solve the problem.A small frictionless cart, attached to the wall by a spring, is pulled 10 cm back from its rest position and released at time t = 0 to roll back and forth for 4 sec. Its position at time t is 
. What is the cart's maximum speed? When is the cart moving that fast? What is the magnitude of of the acceleration then?
A. 10? ? 31.42 cm/sec; t = 0.5 sec, 1.5 sec, 2.5 sec, 3.5 sec; acceleration is 0 cm/sec2 B. ? ? 3.14 cm/sec; t = 0.5 sec, 1.5 sec, 2.5 sec, 3.5 sec; acceleration is 0 cm/sec2 C. 10? ? 31.42 cm/sec; t = 0.5 sec, 2.5 sec; acceleration is 1 cm/sec2 D. 10? ? 31.42 cm/sec; t = 0 sec, 1 sec, 2 sec, 3 sec; acceleration is 0 cm/sec2
Divide using the quotient rule for exponents. Write the result with positive exponents. Assume that variables in the denominator are not equal to 0. 
A. - 
B. - 
C. - 
D. - 