Answer:
15
Step-by-step explanation:
Use the Pythagorean Thereom:
= +
= 81+144
= 225
= 15
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Its A, and both by a factor 1/15
50888888888888888888+++++
Answer: −x2−3x+4y+4z+5
Step-by-step explanation: terms are (positive or negative), a single variable ( a letter ), several variables multiplied but never added or subtracted.
