The areas of three squares will be used to prove that AQRS is a right triangle. Which of these shows the dimensions of the three squares that are needed for the proof?
A.2 units by 2 units
4 units by 4 units
10 units by 10 units

B. 6 units by 6 units
8 units by 8 units
10 units by 10 units

C. 6 units by 6 units
8 units by 8 units
14 units by 14 units

D. 12 units by 12 units
16 units by 16 units
20 units by 20 units
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The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %

Complete the steps to find 4.830 ÷ 5