Solve.The temperature at which molecular motion is at a minimum is -273.15°C. A piece of metal is cooled to -269°C. Calculate the difference in the temperatures.
A. 3.9°C
B. 4.15°C
C. 542.25°C
D. 4.05°C
Answer: B
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Estimate a sum by rounding each addend to the specified place. Estimate a difference by rounding the minuend and subtrahend to the specified place value.532.432 - 36.6 to the nearest tenth
A. 495.9 B. 495.8 C. 496.0 D. 485.8
Graph the equation.f(x) = 
x2
A. 
B. 
C. 
D. 
Provide an appropriate response.Suppose a machine costing $12,000 is to be replaced at the end of 7 years, at which time it will have a salvage value of $6000. In order to provide money at that time for a new machine costing $15,000, a sinking fund is set up into which equal payments are placed at the end of every quarter. If the fund earns 5.6% compounded quarterly, what should each payment be?
Fill in the blank(s) with the appropriate word(s).
The letters r and ? represent polar coordinates. Write the equation using rectangular coordinates (x, y).r(1 - 2 cos ?) = 1
A. x2 + y2 = 2 + x B. x2 + y2 = 1 + 2x C. x2 + y2 = (1 + 2x)2 D. x2 + y2 = (2 + x)2