Solve by the square-root property.(x + 3)2 = 12
A. 2
- 3, 2
+ 3
B. -3 + 2
, -3 - 2
C. 2
, -2
D. -3 + 2
, -3 - 2
Answer: B
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Use the following definitions to determine if the statement is true or false. N = {x : x is a natural number}I = {x : x is an integer}R = {x : x is a real number}W = {x : x is a whole number}Q = {x : x is a rational number}W is a proper subset of I, Q, and R.
A. True B. False
Solve problems using a calculator.To determine the thickness of a sheet of metal, six batches of 8 sheets each are measured with a digital micrometer. The thickness of each of the six batches of 8 is 0.3932, 0.3929, 0.3922, 0.3925, 0.3930, and 0.3924 mm. Find the average thickness of a single sheet of metal. (Round to the nearest ten-thousandth of a millimeter, if necessary.)
A. 0.0490 mm B. 0.0491 mm C. 0.3929 mm D. 0.3927 mm
Provide the proper response.What is true when marginal revenue and marginal cost are equal?
What will be an ideal response?
Find the indicated intercept(s) of the graph of the function.y-intercept of f(x) = 
A. 
B. 
C. (0, 5)
D. 