Answer:
x=1
Step-by-step explanation:
8x-1=3x+4
8x-1+1=3x+4+1 *You add one on both sides
8x=3x+5
8x-3x=3x-3x+5 *Then you subtract 3x by positive 3x and subtract 8x by -3x
5x=5
5x/5=5/5 *Divide both sides by 5
x=1 *An finally you get your answer
Comment
In a 45 - 45 - 90 triangle the two smaller sides are =. So when you use
a^2 + b^2 = c^2, you need a and b both to find the area.
So call both of them = b^2.
Equation and solution
a^2 + b^2 = c^2
b^2 + b^2 = c^2
2b^2 = c^2
c = 24
b = ???
2 b^2 = 24^2
2 b^2 = 576 Divide by 2
b^2 = 288 I'm going to leave this as it is for the moment. You'll see what in a second.
Area of a triangle
Area of a triangle = 1/2 h * b
But the height and base are the 2 smaller equal sides of a 45_45_90 triangle
so h = b
base = b
Area of a triangle = 1/2 b^2 The equalities above tell you that. h and b of the triangle are equal.
Area = 1/2 288 feet^2
Area = 144 feet^2
Answer:
32 miles.
Step-by-step explanation:
That would be 2/3 * 48 = 32 miles.
The y intercept is -2. There is two x- intercepts because it is a parabola so,
x=-1
x=2
The axis of symmetry is where it splits evenly so, we can conclude it is less than 1 and bigger than 0. I hope this makes sense.
