So hmmm check the graph below
now.. to find the vertex of any quadratic
so... how long did it take? well, it took
what was the highest point? well, it was
when did he hit the water? well, at y = 0
that is
solve for "t"
3•y+2
3 and y are being multiplied and then you add the two!:)
If u find how many miles for 1 gallon, there are 25 miles so then divide 342 by 25 and u get 13.68 gallons
Step-by-step explanation:
(Assuming that this triangle is isosceles)
If this triangle is isosceles, then x° is going to be equal to its twin angle; 40°.
We can solve for z now.
180 = 40 + 40 + z
180 = 80 + z
Subtract 80 from both sides.
100 = z
z = 100°
Now that we know z = 100 degrees, we can begin to solve the expression (3x -20)
The expression sits on a 180° line and the angle z (100°) shares the line with the expression (3x - 20)°
180 = 100 + (3x - 20)
Subtract 100 from both sides.
80 = 3x - 20
Add 20 to both sides to isolate 3x
100 = 3x
Divide by 3 on both sides.
100/3 = 3x/3
33.33... = x
