Answer:
X=0,1
Step-by-step explanation:
Remove the radical by raising each side to the index of the radical
The standard form is 
<em><u>Solution:</u></em>
Given that we have to write the given equation in standard form,

In order to write any polynomial in standard form, you look at the degree of each term. You then write each term in order of degree, from highest to lowest, left to write
The terms are ordered from biggest exponent to lowest exponent
In the given equation,

7 is the highest exponent. So we write the standard form as,

Thus the terms are arranged from highest exponent to lowest exponent
C. -7.25 + 0.5(n)
Let's plug in some numbers
Let n = 2
-7.25 + 0.5(2) = -6.25
Let n = 3
-7.25 + 0.5(3) = -5.75
All the numbers match up when you substitute a whole number, therefore it is C.
Let's check one last one, if n=4
-7.25 + 0.5(4) = -5.25
Let's check to see if this is true.
-5.75 - 0.5 = -6.25
The -5.75 and the -6.25 are all numbers given for the equation. (in your picture)
To see if it's a right triangle we need to determine if a²+b²=c²
(

)² + (

)² =


+

=


+

=


=

So it is a right triangle
Answer:
D
Step-by-Step explanation: