800 hm = _____ cm 8 0.08 8,000,000 80,000
1 answer:
To solve this conversion factor problem we are going to multiply our original quantity 800hm by conversion factors (expressed as fractions) in order to cancel units until we get centimeters:
We know that 1 hectometer= 100 meters, so our first conversion factor expressed as a fraction is
We also now that 1 meter = 100 centimeters, so our second one is
Now that we have our fractions, lets multiply our original quantity by them to get our answer in the required units:
We can conclude that 800hm are 8,000,000cm
We know that 1 hectometer= 100 meters, so our first conversion factor expressed as a fraction is
We also now that 1 meter = 100 centimeters, so our second one is
Now that we have our fractions, lets multiply our original quantity by them to get our answer in the required units:
We can conclude that 800hm are 8,000,000cm
You might be interested in
9514 1404 393
Answer:
A. 15x +14y = -36
Step-by-step explanation:
Since we are given two points, we can start with the 2-point form of the equation for a line.
y = (y2 -y1)/(x2 -x1)(x -x1) +y1
y = (6 -(-9))/(-8 -6)(x -6) +(-9)
y = 15/-14(x -6) -9
Multiplying by -14, we have ...
-14y = 15x -90 +126
Adding 14y-36 to both sides gives ...
-36 = 15x +14y . . . . matches choice A
The standard-form equation is ...
15x +14y = -36
_____
<em>Additional comments</em>
It can be easier to start with the form ...
(Δy)x -(Δx)y = (Δy)x1 -(Δx)y1 . . . . . where Δx = x2-x1 and Δy = y2-y1
This gives ...
(6+9)x -(-8-6)y = 15(6) +14(-9)
15x +14y = -36 . . . simplified
__
You can also start with the slope-intercept form or the point-slope form, if you're more familiar with those. The result will be the same. I find it handy to be familiar with a number of different forms of the equation for a line.
