Answer:
1. The base is a triangle.
Step-by-step explanation: This one seems like it's the only corret one, You might have to wait and see the other answers roll in.
Answer: -6
-6•-7=42
Negative times a negative equals a positive
Answer:
The y intercept is -1
Step-by-step explanation:
The y intercept (when written in slope-intercept form) is always the constant at the end of the equation. In this case, that constant is -1.
Answer:
x = 7
y = 2
Step-by-step explanation:
x + y = 9 but y = x - 5
x + (x - 5) = 9
2x - 5 + 5 = 9 + 5
2x/2 = 14/2
x = 7
y = x - 5
y = (7) - 5
y = 2
Answer:
900 - 1= (31)(29)
Step-by-step explanation:
We need to factor 900 -1
We write each number in square form
900 can be written as 30^2
1 can be written as 1^2
![900 - 1= 30^2 - 1^2](https://tex.z-dn.net/?f=900%20-%201%3D%2030%5E2%20-%201%5E2)
Now we apply difference of square formula
a^2 - b^2 = (a+b)(a-b)
![30^2 - 1^2=(30+1)(30-1)](https://tex.z-dn.net/?f=30%5E2%20-%201%5E2%3D%2830%2B1%29%2830-1%29)
So 900 - 1= (31)(29)