Answer:
it 31 for sure but if not that than some thing is wrong
Step-by-step explanation:
15+12+4=31
Answer:
sqrt. 65
Step-by-step explanation:
assuming that it is a right angle
7^2 + 4^2 = c^2
c=sqrt. 65
Answer: x=7
Step-by-step explanation: First you distribute the 12 to (10-x). That then gives you 15x+120-12x=141. Now you combine like terms. So you do 15x-12x=3x. Your new equation now is 3x+120=141. Subtract 120 from 141 and mark it out. That leaves you with 3x=21. Divide both sides by 3. Your final answer is x=7.
X=3 and x=-9 solve by factoring
The answer to which is bigger is -5 because it is closer to zero
