3(x - 5) = 8x - 30
Distribute 3 into the parenthesis:
3x - 15 = 8x - 30
Add 15 to both sides:
3x = 8x - 15
Subtract 8x to both sides:
-5x = -15
Divide -5 to both sides:
x = 3
12.875 pounds. To turn fraction into a decimal, divide the numerator by the denominator. 7 divided by 8 = 0.875.<span><span /></span>
By looking at the formula you can see that the quadratic part is 0 if you fill in x=3 (you know, 3-3 = 0). The outcome of the formula then becomes y= 0+5.
That gives us point (3,5) as the top of the parabola. So there you go, answer A.
Answer:

Step-by-step explanation:
Let's solve for L.

Step 1: Flip the equation.

Step 2: Add
to both sides.


Step 3: Divide both sides by
.


Answer:

Answer:
D
Step-by-step explanation:
Congruent sides mean that they have "EQUAL" lengths.
So, to prove to sides are congruent means that their lengths are equal.
Slope gives the slope of a line. So this can't be it.
Area gives the area of figure. Nothing to do with congruency of 2 lines.
Midpoint formula gives the coordinates of the midpoint. Nothing here.
Distance formula gives the length of sides. So, this is the one we can use to prove that a figure has congruent sides. We can place the figure in coordinate system and find the length of 2 respective sides using "distance formula"
Correct answer is D