25% decrease because if you multiply 20x.25 you get 5 and you minus the 5 from 20 books and you get 15 books
Answer:
well 278 rounded to the nearest 10 is 280 idk how to round a whole number to the nearest 10th
It's a bit of a bummer to have to work through all of these to find the answer. That a lot of slope calculations (or graphing, or whatever). When there are this many, a spreadsheet or other machine help can make it easier.
The correct choice is the last one, XYZ, with vertex X being where the right angle is located.
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Slope of XY is 4/7; slope of XZ is -7/4. The product of these is -1, so those segments are at right angles.
Step 1: Find the Lowest Common Multiple between the denominators.
Step 2: Multiply the numerator and denominator of each fraction by a number (the one that will get them to the lcm) so that they have the LCM as their new denominator.
Step 3: Add or subtract the numerators and keep the denominator the same.
They have the 2
774546-354
