Answer:
C. y = 20
Step-by-step explanation:
Given system of equations:
Multiply the second equation by 3:
Subtract this from the first equation to eliminate 3y:
Solve the resulting equation for x:
Substitute the found value of x into the original second equation and solve for y:
Do you want this explained ? or the answer
So find factors of 5
1 and 5
both factors must be both negative or both positive to be positive 5
adds to negative 4
to do that, they both must be negative
-5 times -1=5
-5+-1=-6
doesn't work
the only way it would work is if it is what multipies to -5 and adds to -4 which then the numbers would be -5 and 1
Answer:$189.95, no
Step-by-step explanation:
I got the answer correct
Answer:
it is a 60 30 90 triangle so basically 2y is = x
21² + y² = x²
441 + y² = x²
y = x/2 (2y = x)
441 + x²/4 = x²
4x² = 1764 + x²
3x² = 1764
x = exact is 24.248711306 simplied square root would just be 14√3
2y = 14√3
y = 7√3
exact wouldd be 12.124355653
