Question

PLEASE HELP I WILL MARK U AS BRAINLIST !!!!

The length of each of the legs of an isosceles triangle is represented by the expression 5x-2 inches. The length of the base of the isosceles triangle is represented by the expression 3x +1 inches. The perimeter of the isosceles triangle is 42 inches.

determine whether each equation represents the perimeter of the isosceles triangle , in inches .

select yes or no for each equation

A. 13x-2=42 yes or no
B. (10x-2)+(3x+1)=42 yes or no
C.2(5x-2)+2(3x+1)=42 yes or no
D.5x-2+3x+1+5x-2=42 yes or no

THERE CAN BE MORE THAN ONE ANSWER.
thank you
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Answer 1

Answer:

A.No

As,

5x - 2 + 5x - 2 + 3x + 1 = 13x - 3 = 42

But here,

13x - 2 which is not equal to 13x - 3

Hence, it's wrong.

B. No

As,

5x - 2 + 5x - 2 + 3x + 1 = (10x - 4) + (3x + 1) = 42

But here,

(10x - 2) + (3x + 1) which is not equal to (10x - 4) + (3x + 1)

Hence, it's wrong.

C. No

As,

5x - 2 + 5x - 2 + 3x + 1 = 2(5x - 2) + 3x + 1 = 42

But here,

2(5x-2)+2(3x+1) which is not equal to 2(5x - 2) + 3x + 1

Hence, it's wrong.

D. Yes

As,

5x - 2 + 5x - 2 + 3x + 1 = 42

Also,

5x-2+3x+1+5x-2 equal to 5x-2+3x+1+5x-2

Hence, it's correct.

Answer 2

Answer:

A and D is right

Step-by-step explanation:

I did the quiz and use the answer and it was right