Find the opposite of the integer.-28
A. 28
B. -1
C. -28
D. 0
Answer: A
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Find the derivative of y with respect to the independent variable.y =log8
A. 
B. 
(sec ? csc ? - ln 5 -1)
C. 
(cot ? - tan ? - ln 5 -1)
D. e8(cos ? - sin ? - e?5?)
Solve.The land surface of the earth is 57,900,000 square miles. Of this, 19,200,000 square miles are forested. Using scientific notation, express the number of square miles that is not forested.
A. 38.7 × 106 square miles B. 3.87 × 106 square miles C. 3.87 × 108 square miles D. 3.87 × 107 square miles
Find the equation of the line of best fit from the data in the table. Round the slope and the y-intercept to the nearest hundredth.
A. y = 0.43x + 4.98 B. y = 0.73x + 4.98 C. y = 0.53x + 4.88 D. y = 0.63x + 4.88
Given the radius, r, of a circle, find the diameter; or given the diameter, d, of a circle, find the radius.d = 84 ft
A. r = 131.88 ft B. r = 5538.96 ft C. r = 21 ft D. r = 42 ft