When using the 30° - 60° - 90° method, the side lengths will always be x and x√3 for the legs and 2x for the hypotenuse.
Because the hypotenuse is 12, the equation is:
2x = 12
And now you find x to get the length of the shortest leg.
2x = 12
x = 6
Now that we know the length of x, you just add √3 in order to find the longest leg.
Therefore, the length of the longest leg would be 6√3.
9 and 7/8 as a precent is 0.875 or 87%
We can solve this problem using discriminant.
x^2-4x-12's discriminant is
(-4)^2-4*-12=16+48 which is clearly larger than 0
This means that it crosses over the axes 2 times.
In case you don't know what discriminant is, its in equation ax^2+bx+c
the discriminant is b^2-4ac.
If its positive it has 2 crosses with x axis, if negative then 0 crosses, if 0 then 1 cross.
Hope this helped at least a little bit :D
It's 3x+2 because 3 ÷2 is 6 so it's 3x+2
Answer:
x=0
Step-by-step explanation:
10(x-2)=-20
10x-20=-20
add 20 on both sides.
10x=0
10 times 0 =0
x=0
