Answer:
x=51
Step-by-step explanation:
There are two ways you can go about this
You can either say that the sum of interior angles in a triangle is equal to 180 so you do 180-39-90=51
Or you could use the exterior angle theorem, which means that 90=39+x, simplify that and you get that x=51
It is a. You didnt load the pic but if you did if you rotated Dc 90 it would complete BE.
Answer:
mixture a because there's not so much purple.the more purple the darker it is
Any equation that has something squared in it always has two solutions.
The equation that you'd use to solve this problem is no exception.
You said that x² + x = 72
Subtract 72 from each side, and it says x² + x - 72 = 0
That's the equation to solve, and when you do, the value of 'x'
is the answer to your puzzler.
You can solve the equation using the quadratic formula, or even
by factoring if you can handle it that way.
(x + 9) (x - 8) = 0
<em>x = -9</em>
and
<em>x = 8 .</em>
Sure enough, they both work:
<u>x = -9</u>
x² = 81
x² + x = 81 - 9 = <u>72</u>
<u>x = 8</u>
x² = 64
x² + x = 64 + 8 = <u>72</u>
yay !
Answer:
a = 6
Step-by-step explanation:
