Harriet and Richard go shopping and by 66 items altogether. Harriet buys twice as many items as Richard. How many items does Har
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Answer:
8.06
Step-by-step explanation:
Use the Pythagorean theorem:
The hypotenuse is always the slanted side, or c (x in this picture), but the other numbers can be interchanged. Doesn't matter.
Plug the numbers 4 and 7 into the formula.
Now evaluate them to get
16+49=65
To get c, take the square root of 65