Answer:
y = 2x + 11
Step-by-step explanation:
The first thing we need to do
is to find the slope of the line that passes through the points (-4,-3) and (4,1)
Mathematically, that would be;
m = y2-y1/(x2-x1)
where (x1,y1) = (-4,-3) and (x2,y2) = (4,1)
substituting these. values we have;
m = (1-(-3))/(4-(-4)) = 4/8 = 1/2 or 0.5
Now we are told this line is perpendicular to another line that passes through another point.
We can find the slope of this other line
Since both lines are perpendicular, the product of their slope is -1.
Thus , -0.5 * m = -1
m = -1/-0.5 = 2
So the slope of the other line is 2
Using the point-slope form;
y-y1= m(x-x1)
The point for the other line is (-4,3)
So the equation will be
y-3 = 2(x+4)
y-3 = 2x + 8
y = 2x + 11
Do 1200 minus 140 and then divide the answer by 20
takes her 20 minutes to walk 1/2 a mile
2 miles=80 minutes
1/4= 10 minutes i think
so 80+10=1 1/2
{This is not my work!!!}
Answer:
Sam sliced the pie into 15 equal slices
Step-by-step explanation:
Given : Sam cut a pie into equal slices.There are only three slices left.The angle measure for the three slices is 72 degrees.
We have to determine the number of slices that the Sam cuts.
Sam cuts a pie and pie is in shape of circle therefore total angle measure is 360°.
Since, Given the angle measure for the three slices is 72 degrees.
So, The angle measure for the one slices is 
degrees.
Since, Pie is cut into equal slices.
So, measure of each slice must be equal.
So let he cut x slices of pie of 24°
So , total measure of x slices must be equal to 360°
24 · x = 360
x = 15
Thus, Sam sliced the pie into 15 equal slices
Shane and Karen want to measure the length of a soccer field. Length can be measured in different units such as cm, m ,km , yards etc. The question is asking us to select between two units cm or meters which will be more appropriate to measure the field.
To measure the field a larger unit is required. Meter is a bigger unit than centimeter.Centimeter is not the correct unit to measure the length of soccer field.
Shane and Karen should use meters to measure the soccer field.
