I’ll help comment the questions and I’ll answer
Answer:
5 cm
7cm
Step-by-step explanation:
Each X and Y in the equations don't have a number in front of them so they are all considered 1.
D = 1*(-1) - 1*(-1) = -1 -1 = -2
The answer is -2
Answer:
27
Step-by-step explanation:
22
24
25
26
27 - middle AKA median.
28
28
29
36
Description: They didn't distribute the 3 to both x and 5, so they just had 3x+5.
actual problem:
3(x+5)=3x+15
3x+15=3x+15
subtract 3x from both sides and end up with
15=15
Correct Answer: 15=15