I believe anything that is squared (^2) is a quadratic. so a, b, e and f are quadratics. you could also check on desmos to see if they are parabolas (u shape).
The greatest common factor (GCF) of 15 and 30 is: 15
Factors of 15: 1, 3, 5, 15
Factors of 30: 1, 2, 3, 5, 6, 10, 15
The common factors between the two numbers are 1, 3, 5, and 15, but considering 15 is the highest number out of them all, it is the greatest common factor.
All steps that Marcie did are right, but she forgot to change sign in last step.
Consider the inequality

Then

Group the numbers:

Separate terms with x and without x in different sides:

The coefficient at x is -8 and it is negative, then dividing the inequality by -8 you have to change sign in opposite:

Answer: Marcie forgot to change sign in last step.
we know that
In a right triangle we have
two legs and one hypotenuse
Let
a,b -----> the legs of the right triangle
c-----> the hypotenuse of the right triangle (the greater side)
Applying the Pythagoras Theorem

therefore
<u>the answer is</u>
The length of the hypotenuse squared is the length of one leg squared plus the length of another leg squared
Answer:

Step-by-step explanation:
You want to solve ...
