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What is the sum of the fractions? Use the number line to help find the answer.
arou
3/5 + (-7/5)
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-4/5

Step-by-step explanation:

Just write down the answer.

By drawing a diagonal in a square you are dividing the square into two congruent isosceles right triangles. Using Pythagorean Theorem we can find the length of the diagonal.

a squared + b squared = c squared
a and b represent the sides of the triangle (aka the length of a side of the square), and c represents the hypotenuse (aka the diagonal).
9 squared + 9 squared = c squared
81 + 81 = c squared
162 = c squared
take the square root of both sides
81= x