Answer:
10 units
Step-by-step explanation:
to find the distance between two points you will need to use the distance formula:
the x1 refers to the x coordinate in the first bracket, the x2 refers to the x coordinate in the second bracket, etc.
insert the coordinates into the equation:
a double negative equals a positive
insert this equation into your calculator:
= 10
∴ the distance between the points (1,1) and (7,-7) are 10 units
I hope this was helpful :-)
To solve this problem you must apply the proccedure shown below:
1- The ladder forms an isosceles triangle, because it has two equal sides.
2- Let's call the angle 
. To calculate it , you can divide the triangle into two equal right triangles and the angle will be divided into two equal parts too. Therefore, you can calculate the half of the angle and then multiply it by two, as following:
The answer is: 
It's an arithmetic sequence. The first term is 1 and the common difference is 4.
Answer:
2x +7
The coefficient of the variable is 2
Step-by-step explanation:
x+x+3+4
Combine like terms
2x +7
The coefficient of the variable is 2
5x100+5x90+5x8 and there you go all you need to do is do this problem the right way and you will get the right answer
