Answer:The answer is D(-5,7)
Step-by-step explanation:
Just took the test 
 
        
             
        
        
        
Answer:
Multiplication and Division unless there are parentheses 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
y=2x-5
Step-by-step explanation:
The slope-intercept form of an equation looks like y=mx+b. Where m is the slope and b is the y-intercept. The slope is already given to us, so m is 2. 
To find b use the equation  . So, to find the y-intercept use b=-7-(2*-1). This equals b=-5.
. So, to find the y-intercept use b=-7-(2*-1). This equals b=-5.
So, plug in the values to get the final equation y=2x-5.
 
        
                    
             
        
        
        
Answer:
y = -2x - 4
Step-by-step explanation:
So we have the x intercept and a line perpendicular to the one we are trying to find.
Perpendicular deals with the slope.  Perpendicular slopes are negative reciprocals of each other, or in other words, if the slope is m the negative reciprocal is -1/m.
the slope of the perpendicular line is 1/2 so that means the negative reciprocal is -2.
x intercept is when y=0, so the point is (-2, 0).  So that means the equation to make this point with the slope of -2 will look like this
y = mx + b
0 = -2*-2 + b
-4 = b
Now to get into the line we just plug in m and b into y = mx + b
y = mx + b
y = -2x - 4
And to check if you plug in -4 you'll get y = 0
 
        
             
        
        
        
Answer:
The answer is 20812
The numeral system we use is a base ten numeral system. Base ten numeral numbers are: 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9.
The number has:
2 "tens thousands" = 2 * 10000 = 20000
0 "thousands" = 0
8 "hundreds " = 8 * 100 = 800
1 "tens" = 1 * 10 = 10
2 "ones" = 2 * 1 = 2
Sum all the results => 20000+800+10+2 = 20812
That is how you write a number using base ten numerals (numbers from 0 to 9)