Answer:
x = 26
y = 9
Step-by-step explanation:
(5x - 17)° + (3x - 11)° = 180° (angles in a straight line)
Solve for x
5x - 17 + 3x - 11 = 180
Collect like terms
5x + 3x - 17 - 11 = 180
8x - 28 = 180
Add 28 to both sides
8x = 180 + 28
8x = 208
Divide both sides by 8
x = 208/8
x = 26
Also:
(2y + 5)° + 90° + (3x - 11)° = 180° (angles on a straight line)
Plug in the value of x and solve for y
2y + 5 + 90 + 3(26) - 11 = 180
2y + 5 + 90 + 78 - 11 = 180
Collect like terms
2y + 162 = 180
Subtract 162 from both sides
2y = 180 - 162
2y = 18
y = 9 (dividing both sides by 2)
Answer:
F (-8, -1)
Step-by-step explanation:
We can solve the system using substitution.
From the second equation
x-6y= -2
x= -2 + 6y
This value of x substitute into 1st equation
-4x+5y=27
-4(-2+6y)+5y=27
8-24y+5y =27
- 19y = 19
y= -1
x= -2 + 6y, y= - 1
x= -2 +6(-1)= -8
x= - 8
x= -8, y= -1
(-8, -1)
Answer:
The answer is A & E.
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
4x^2-8x-60=0
a=4 b=-8 c=-60
*I am going to plug these numbers into the quadratic formula*
x=-(-8)plus or minus 
*simplified into...
x=-8 plus or minus 
x=5 or x=-3
pls mark me brainliest
Answer:
I think it's line "A"
Step-by-step explanation:
