Answer:
x=2
Step-by-step explanation:
5×2=10-2=8
You subtract add two to both sides, giving you 5x=10
Divide the 10 by 5 and you get 2.
Answer:
409 i would say
Step-by-step explanation:
very sorry is its wrong!!! :(
First, solve 10x + y = -20 for y: y = -20 - 10x
Next, substitute -20 -10x for y in the second equation:
-20 - 10x = 2x^2 - 4x - 16.
Rearranging, 2x^2 + 6x + 4 = 0
Simplifying, x^2 + 3x + 2 = 0
The roots of this poly eqn are -1 and -2. Therefore, x = -1 and x = -2.
One by one, subst. these x-values into y = -20 - 10x to find the corresponding y-values.
Your answers should look like this: (-1, y) and (-2, y) (different values for y).
The equation for area of a triangle is given below.
Area of Triangle = 0.5*Base*Height
Since we are given that the base is 8 yards and height is 3 yards...
Area of Triangle = 0.5 * 8 yards * 3 yards = 12 yards^2
