Provide an appropriate response.What is the equation of the line that is tangent to the circle of radius 8 at (0, -8) and whose center is at the origin?
A. x = -8
B. y = -8
C. y = x - 8
D. y = x + 8
Answer: B
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Solve.A company has just purchased a new computer for $5400. The company chooses to depreciate the computer using the straight-line method over 6 years. Find a linear function that expresses the book value V of the computer as a function of its age x.
A. V(x) = - 5400x + 900 B. V(x) = 900x + 5400 C. V(x) = -1000x + 5400 D. V(x) = -900x + 5400
Perform the indicated operation.(5x - 12)2
A. 5x2 + 144 B. 5x2 - 120x + 144 C. 25x2 + 144 D. 25x2 - 120x + 144
Solve.As the relative humidity increases, the temperature seems higher than it is. The formula T = 0.101x + 55.05 approximates the apparent temperature for an actual temperature of 
where x is the relative humidity. What is the apparent temperature (to the nearest degree) for a relative humidity of 70%?
A. 62°F B. 125°F C. 55°F D. 389°F
Solve the problem.A small business owner made $30,000 the first year he owned his store and made an additional 
over the previous year in each subsequent year. Find how much he made during his fourth year of business. Find his total earnings during the first four years. (Round to the nearest cent, if necessary.)
A. $205,770.00; $401,070.00 B. $38,850.87; $137,193.87 C. $390,963.00; $792,033.00 D. $21.87; $32,964.87