Pls help
1 answer:
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Answer:
3
Step-by-step explanation:
area of square=l*b so
81=3x multiply 3x
81=9x^2
81/9=x^2
9=x^2
=x
3=x
Answer:
The answer to your question is (-1, 4) The lines cross in one point so they have only one solution.
Step-by-step explanation:
Data
Equation 1 x - 4y = -17
Equation 2 y = 4x + 8
Solve for y
Equation 1 y = -x/-4 - 17/-4
y = x/4 + 17/4
Equation 2 y = 4x + 8
See the graph below
These lines cross in point (-1, 4), so that is the only one solution.
If the lines were the same line they would have infinite solutions
The formula for the surface area of a cylinder with radius r and height h is 
since h=11, substitute into the formula to get
since the total surface area isn't given in pi units, we can set pi=3.14
since h=11, substitute into the formula to get
since the total surface area isn't given in pi units, we can set pi=3.14