a1 * r * r = a3
15 r^2 = 135
r^2 = 9
r = 3
an = a1 (3n-1)
an = 15 * 3n-1
Break it into two right triangles
one is 1x1 the other is 3x2 total area = 1/2 + 3 = 3 1/2 units2
Slope intercept form of a line y = mx + b where m = slope and b = y axis intercept
y = -3/7 x + 18 the x axis intercept occurs when y = 0
0 = - 3/7x + 18
x = 18 * 7/3 = 42 42, 0 is the x axis intercept
Find the slope rise/run = - 2
y axis intercept = -3
slope intercept form of the line becomes y = -2x-3
re-arrange to the requested form
2x + y = -3
divisors of 144
1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144
Divisors of 196
1, 2, 4, 7, 14, 28, 49, 98, 196 count them ......
Yah....I asked one of the moderators of the universe to 'unblock' it.....check back shortly ... ~ EP
Or maybe try looking at it here :
https://web2.0calc.com/api/ssl-img-proxy?src=%2Fimg%2Fupload%2F9c093edc85458cf627a73b8e%2Flots.jpg
roots x = - 7 and -1 looks like this:
f(x) = (x+7)(x+1)
= x^2 +8x + 7 =0
Just to make sure we are talking about the same thing:
when you get this picture, click on the red circle.....
if you are still on the file folder with the + that you opened in an attempt earlier , you'll have to back up....or start over to get the picture you originally posted below:
Did that work? Sorry....my answer kept getting cut off so I had to edit it several times .......
x = toy price
3x = radio price
x + 3x = $ 24
x = 6
toy = 6 radio = 18 difference = $ 12
