Graph the equation and give the coordinates of the vertex.y = x2 + 4
A. (-4, 0)
B. (4, 0)
C. (0, -4)
D. (0, 4)
Answer: D
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Use a calculator with a 
key or a 
key to solve the problem.Research suggests that the probability of a certain fuse malfunctioning increases exponentially as the concentration of an impurity in the fuse increases. The probability is modeled by the function y = 4(257,911)x, where x is the impurity concentration, and y, given as a percent, is the probability of the fuse malfunctioning. Find the probability of the fuse malfunctioning for an impurity concentration of 0.12. Round to the nearest percent.
A. 4% B. 12% C. 30% D. 18%
Solve the problem. Use a fraction for the rate and round dollar amounts to the nearest cent.An optical telescope that costs $322,000.00 is depreciated using the 1.5 declining-balance method. The scrap value of the press is estimated to be $3220.00 and the press has an expected life of 25 years. Prepare the first four years of a depreciation schedule.
What will be an ideal response?
Solve the equation.8x + 20 = 0
A. 
B. 
C. 
D. 
Evaluate the expression for the given value or values of the variables.9x2 + 7y; x = 6, y = 5
A. 1935 B. 359 C. 267 D. 2951