Seth solved a quadratic equation. His work is shown below, with Step 3 missing. What could Seth have written as the result from Step 3? 1/2 (x - 1)^2 + 5 = 23

Step 1. 1/2 (x - 1)^2 = 18
Step 2. (x - 1)^2 = 36
Step 3.
Step 4. x = -5 or x = 7​

answer: the answer is one

step-by-step explanation:

pemdas, in this situation there is no parenthesis or exponents so you go to multiplication, 1x1=1, then division 1/1= 1 then addition 1+1=2 then subtraction 2-1=1

7/2

(decimal: 3.5)

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step-by-step explanation:

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.

english maybe i can ..