Mary is incorrect. Perimeter is not proportional to area. An example which you can use is garden A is an 8 by 1 rectangle. The perimeter is 18 while the area is 8. Graden B is a 4 by 4 square. The perimeter is 16 (less than garden A) while the area is 16 (two times more than garden B).
An equation can be determined as linear if it is first order in a single variable, i.e. y=3x, but not y=3x^2.
A graph will be linear if the slope is constant
0.405, 0.45 , 0.5 , 4.5 : Least to greatest!
correct answer is option d.
<u>Step-by-step explanation:</u>
Here, we have The following expression to check Which of the following is a polynomial with roots: −square root of 3 , square root of 3, and 2 :
<u>a. x3 + 3x2 − 5x − 15
</u>
For
,
⇒
. So, this isn't the one. We move on further!
<u>b. x3 + 2x2 − 3x − 6
</u>
For
,
⇒
= 0 .
For
,
⇒
= 0.
For 2 ,
⇒ 
. So, this isn't the one. We move on further!
<u>c. x3 − 3x2 − 5x + 15
</u>
For
,
⇒
. So, this isn't the one. We move on further!
<u>d. x3 − 2x2 − 3x + 6</u>
For
,
⇒
= 0 .
For
,
⇒
= 0.
For 2 ,
⇒
= 0.
Therefore, correct answer is option d.
A^2+b^2=c^2
24^2+b^2=74^2
576+ b^2=5184
b^2=5184-576
b^2=4608
*square root 4608 to finish isolating b*
b=67.88in
b=68in