Select the correct answer. =
A mistake was made in the steps shown to simplify the expression. Which step includes the mistake
* + 3(4 – 1) – 7 + 23
Step 1: + 3(3) – 7 + 23
Step 2: =
+ 3(3) – 7 + 8
Step 3: =
(3) – 7 + 8
Step 4: =
4 - 7+8
Step 5:
1 + 8
=
Step 6:
47
2
O A. Step 1
OB. Step 3
O C. Step 4
D.
Step 5

7.25

step-by-step explanation:

we know that 7 equals to 7.0. we also know that 1/4=0.25. so we can add the two together and we get 7.25

the diagram shows you   triangle def with de=4, df=9 and de≠df≠ef.

the sum of the lengths of two triangles' sides are always greater than the length of the third side:

substitute sides lengths:

then 5< ef< 13 (option 3 is true).

def is a scalene triangle with all sides of different lengths (option 5 is true, option 2 is false).

answer: correct choices are 1, 3 and 5