Find the correlation coefficient.The following are costs of advertising (in thousands of dollars) and the number of products sold (in thousands): 
A. 0.6112
B. -0.3707
C. 0.2635
D. 0.6756
Answer: A
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Use a calculator to find a decimal approximation for the indicated function values. Round your answer to four decimal places.sin (2.257)
A. 0.5986 B. 0.1401 C. 0.7737 D. -0.6336
Provide an appropriate response.For the equation y = mx + b, find a formula for the value of x given any value of y.
A. x = 
B. x = 
C. x = 
D. x = y - mx - b
Determine the coefficient of each term in the polynomial.6w8 - 3w4 - w
A. 8, 4, 1 B. 6, -3, -1 C. 6, 3 D. 6, 3, 1
The number S of species of birds on an island is given approximately by
,
where A is the area, in square kilometers, of the island that is usable for birds.A: If a conservation program is able to increase the usable area by 25%, how is the number of species affected? Express your answer in terms of a percent.B: If a natural disaster reduces the usable area of the island by 23%, how is the number of species affected? Express your answer in terms of a percent.C: If the number of bird species is 54, and the usable area is 218 square kilometers, find the value of c.
?
Round your answers to two decimal places if necessary.
?
What will be an ideal response?