Answer:
1.5
Step-by-step explanation:
Answer: x=19
Step-by-step explanation: 2x+8x-10=180
Step 1: Simplify
2x+8x-10=180
2x+8x+-10=180
(2x+8x)+(-10)=180(combine like terms)
10x+-10=180
10x-10=180
Step 2: Add 10 to both sides
10x-10+10=180+10
10x=190
Step 3: Divide both sides by 10
10x/10=190/10
x=19
Answer:
I don't know this stuff, but it is -20.
A^2 + b^2 = c^2
132^2 + b^2 = 157^2
17424 + b^2 = 24,649
b^2 = 24,649 - 17424
b^2 = 7225
b = square root 7225
b = 85 <== the missing leg is 85 units
Lauras step is correct...she rearranged the formula making it :
b^2 = c^2 - a^2.....and subbed in numbers correctly. She just didn't finish