Answer:
There is exactly 1 solution and it is a double root.
Step-by-step explanation:
To find this, factor the equation and solve.
x^2 + 10x - 25 = 0
(x - 5)(x - 5) = 0
Now that we have this factored, we can set each parenthesis equal to 0 and solve separately.
x - 5 = 0
x = 5
x - 5 = 0
x = 5
Because there are two of the exact same answer, we know it to be a double root.
Eliminate the x terms: Multiply the second equation by 2
-10x+12y=20
Add it to the first equation
10x-4y=-8
-10x+12y=20
——————-
0x+8y=12
y = 1.5
10x-4(1.5)=-8
10x = -2
x = -1/5
Answer:
15
Step-by-step explanation:
20-8 = 12
12- -3 = 15
15 + -3 = 12 + 8 + 20
Step-by-step explanation:
By Linear Pair Theorem,
110⁰ + 5x⁰ = 180⁰
5x⁰ = 70⁰ ------- (1)
x⁰ = 14⁰
We know that adding the angles of the triangle lying on the same side, equals the opposite exterior angle, i.e.,
5x⁰ + 40⁰ = 2y⁰
From 1,
70⁰ + 40⁰ = 2y⁰
110⁰ = 2y⁰
y⁰ = 55⁰
<em>Hope it helps :)</em>
Answer:
Step-by-step explanation:
