Answer:
Step-by-step explanation:
To solve this problem you must apply the proccedure shown below:
1. You have that she substituted 
into the simplified expression and the result was -4.
2. Therefore, if you substitute into all the expressions shown in the options, you will see that the result of the expression is -4, as you can see below:
Answer:
55
Step-by-step explanation:
Divide both sides by 3.14 to get d by itself.
172.7 / 3.14 = 55 = d
Answer:28
Step-by-step explanation:
12 -2x < 16
First, subtract 12 from both sides.
-2x < 16 - 12
-2x < 4
Divide both sides by -2
x > -2 (you switch the < sign with > when divided by a negative).
Because it is not greater than/less than or equal to, it is an open circle at -2. Any number that is greater than -2 means it's shaded to the right, the answer's B.
Answer:
-5
Step-by-step explanation:
On the number line, the arrow is from -2 (opens) to the left; that means solutions will be any values less than -2
So
-5 < -2 : YES ( solutions will be any values less than -2)
-2 = -2 : NO (solutions will be any values less than -2)
0 > -2 : NO (solutions will be any values less than -2)
3 > -2 : NO (solutions will be any values less than -2)
Answer
- 5
