Answer: you add them all up
Step-by-step explanation: you can get the answer from above and dont trust this answer.
Answer:
X1 = 3
X2 = -4
Step-by-step explanation:
The correct answer is A.
Here is the completed problem:
3(4x+5)=12
Distributive property.
3(4x+5)=12
Simplify
12x+15=12
Subtract 15 from both sides.
12x+15−15=12−15
12x=−3
Divide both sides by 12.
12x/12 = −3/12
x= −1/4
The surface area= 42.72 inches squared
All you got to do is find the area of each 6 sides the equation should be like this
3×6+3×6+6×.28+6×.28+.28×6+.28×6 and if you use a calculator your answer should be 42.72
