Answer:
lemme look it up aricle
Step-by-step explanation:
Answer: because 4 would be greater than 3.
Step-by-step explanation:
Answer:
Ok, we know that the width of the door is 4.20m.
Then, if the arc is at the top of the door, we will have that the diameter of that "half circle" will be equal to the width of the door.
Then the diameter of the arc is 4.20m
And the radius is defined as half of the diameter, so we have:
radius = 4.20m/2 = 2.10m
And we can write this in cm (because the probelm ask for it)
1m = 100cm
then 2.10m = 2.1*100cm = 210cm
Now, we know that the perimeter of a circle is:
P = 2*pi*r
where pi = 3.14
Then the perimeter (or arc) of half a circle will be half of that:
Arc = (2*pi*r)/2 = pi*r
and r = 210cm, pi = 3.14
Arc = 3.14*210cm = 659.4cm
9514 1404 393
Answer:
y = -2(x -4)
Step-by-step explanation:
The equation of the line is conveniently written in point-slope form, since we are given a point and a slope. That form is ...
y -k = m(x -h) . . . . . . line with slope m through point (h, k)
Using the given point and slope, the equation for the line is ...
y = -2(x -4)
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This simplifies to the slope-intercept form ...
y = -2x +8
