Which expression is equivalent to −2.1+(−5.9)+(−3.7) ? a (2.1+5.9)+(−3.7)b −(2.1−5.9)+(−3.7) c(2.1+5.9+3.7)d −2.1−(5.9+3.7)

b. ol

step-by-step explanation:

i got the answer right on edg.

congruent: (geometry) (of figures) identical in form; coinciding exactly when superimposed.

step-by-step explanation:

assume that you have 3 different side lengths.   apply the pythagorean theorem here:   square each of the two shortest sides; call them a and b, so that their squares are a² and b².   also square the longest side, calling the result c².

now, if a² + b² = c² is true, the triangle is a right triangle; otherwise it is not a right triangle.

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step-by-step explanation: