that's the solution of the system
Answer:
60 feet
Step-by-step explanation:
Pentagon = 5 sides
We need to find the perimeter of the pentagon and we know that one side is 12 feet so,
1 side = 12 feet
( Multiply by 5 to get 5 sides )
5 sides = 60 feet
Answer:
-3/2 ±1/2 sqrt(5) = x
Step-by-step explanation:
f(x) = 2x^2 + 6x + 2
Set the function equal to 0
0 = 2x^2 + 6x + 2
Factor out 2
0 = 2(x^2 + 3x + 1)
Divide by 2
0 = (x^2 + 3x + 1)
Subtract 1 from each side
-1 = x^2 +3x
Complete the square by dividing the x coefficient by 2 and then squaring
(3/2)^2 = 9/4
-1 +9/4 = x^2 +3x+9/4
-4/4+9/4 = (x+3/2) ^2
5/4 = (x+3/2) ^2
Taking the square root of each side
± sqrt(5/4) = sqrt( (x+3/2) ^2)
±1/2 sqrt(5) = (x+3/2)
Subtract 3/2 from each side
-3/2 ±1/2 sqrt(5) = x
The answer to number 1 is subtract 5 from 24 to get 19, then multiply 19 by 2 to get 38 as your final answer. I hope this helps!
Answer:
x is approximately equal to 0.34 and -4.34
Step-by-step explanation:
