First find the slope,
m=(y2-y1)/(x2-x1)=(1-(-9))/(7-6)=10
Next, use the point slope form to find the equation:
L : y-y1=m(x-x1) => y-1=10(x-7)
[in point slope form, point is (7,1), slope=m=10 ]

5 0

3 years ago

A laptop was originally sold for $975. The laptop is now on sale for $828.75.The percent markdown must have been...

Sonja [21]

Answer:

15% markdown

Step-by-step explanation:

To find the percent markdown

Take the original price minus the new price

975-828.75

146.25

Divide by the original price

146.25/975

.15

Change to percent form

15% markdown

5 0

2 years ago

Please answer this correctly without making mistakes

tankabanditka [31]

Answer:

263.76

Step-by-step explanation:

Assuming the shaded area is the yellow area all we must do is find the area of the small circle and subtract it from the larger circle.

To do this we can use the area of a circle equation:

$A=\pi r^2$

first we need to find the radius of the large circle which is simply 4+6= 10

so the area would be:

$A=\pi 10^2\\A=100\pi$

then we find the area of the small circle is

$A=4^2\pi \\A=16 pi$

next we evaluate:

$100\pi -16\pi =84\pi$

Then replace pi with 3.14:

84 · 3.14 = 263.76

And you have your answer!

Hope this helps!

8 0

3 years ago