Idk what you r asking help
Answer:
<u>The solution of this system of equation is ( 3, - 8)</u>
Step-by-step explanation:
1. Let's solve the system of equations:
First equation:
x + 2y = - 13
x = - 13 - 2y
Second equation:
12x + 5y = -4
12 * (- 13 - 2y) + 5y = - 4 (Replacing x with - 13 - 2y)
-156 -24y + 5y = - 4
-24y + 5y = - 4 + 156 (Like terms)
-19y = 152
y = - 152/19
<u>y = -8</u> (Dividing by 19)
Solving x
x + 2y = -13
x + 2 (- 8 ) = - 13
x - 16 = - 13
x = - 13 + 16
<u>x = 3</u>
2. Proving that x = 3 and y = - 8 are correct:
12x + 5y = -4
12 * 3 + 5 * -8 = -4
36 - 40 = - 4
- 4 = - 4
<u>We proved that x = 3 and y = - 8 are correct</u>
Answer:
Step-by-step explanation:
We want to find the x-intercepts of
At x-intercept, y=0.
Take sine inverse of both sides to get:
The x-intercepts are:
for n being an integer
Answer:
<h2>C (-2, 4)</h2>
Step-by-step explanation:
The point-slope equation of a line:
m - slope
(x₁, y₁) - point
We have the equation
Therefore
m = 3
(x₁, y₁) = (-2, 4)
Answer:
21.204
Step-by-step explanation:
