Answer:
x=5.7
Step-by-step explanation:
a^2+b^2=c^2
7^2+b^2=9^2
49+b^2=81
b^2=32
b=5.7
x^2=4x-5
subtract 4x from both sides
x^2-4x=-5
add 5 to both sides
x^2-4x+5=0
input into quadratic formula which is x=

or

si ax^2+bx+c
so a=1
b=-4
c=5
input

=

=

=
![\frac{4+2 times \sqrt{-1} }{2}= \frac{6 times \sqrt{-1} }{2}=3 times \sqrt{-1} [\tex][\tex]\sqrt{-1}](https://tex.z-dn.net/?f=%20%5Cfrac%7B4%2B2%20times%20%20%5Csqrt%7B-1%7D%20%20%7D%7B2%7D%3D%20%20%5Cfrac%7B6%20times%20%20%5Csqrt%7B-1%7D%20%20%7D%7B2%7D%3D3%20times%20%20%5Csqrt%7B-1%7D%20%5B%5Ctex%5D%5B%5Ctex%5D%5Csqrt%7B-1%7D%20%20)
representeds by 'i' so solution is 3i
then if other way around then wyou would do

=

and [\tex]\sqrt{-1} [/tex] is represented by i
the solution is x=3i or i (i=

)
but i is not real, it is imaginary so there are no real solution so the answer is C
Answer:
don't go to college depends on what you want to do they will teach you how to do it and still get paid
Answer:
Option C
Step-by-step explanation:
Got it on the unit test in edge
Answer:27x-14
Step-by-step explanation: Simplify the expression.
Hope this helps you out! ☺