supermanaccz

For it to be parallel, 3x + 5 = 65

To solve the equation, x = 20

The answer to a is pi * x

Use this formula to solve the second one, this will help you learn. 

3 * 2 * pi / 2 = 3pi

3/5 * 1/3 + 14/5 = 3

12 * 4 * 7 + 1

I think i wrote six...

I use a^2 + b^2 = c^2  (26 - 11)^2 + 8^2 = x^2, x = 17 ab = 17

Using a^2 + b^2 = c^2 again, 17^2 + 12^2 = x^2  x=square root of 433

Because it is an iscocoles triangle, we know two sides are 13 and one side is 10. 

Using heron's fomula: http://www.mathwarehouse.com/geometry/triangles/area/herons-formula-triangle-area.php 

The answer is 60. 

Question: a.  In which quadrant does the ordered pair (6, -7) lie?       Quadrant:  _____________

b.  In which quadrant are all the X values negative and all the Y values negative?     Quadrant: ______________

Solution:

Here is a site to get you familiar with quadrants: https://en.wikipedia.org/wiki/Quadrant_(plane_geometry) 

But here is the answer, the pair (6,-7) is in the fourth quadrant

If both values or negative, there are in the third quadrant. 

Here is just something extra:

If the x value is positive and the y value is negative, it will be in the fourth quadrant

If the x value is positive and the y value is positive, it will be in the first quadrant

If the x value is negative and the y value is positive, it will be in the second quadrant

If the x value is negative and the y value is negative, it will be in the third quadrant

I hope this helped, 

Supermanaccz

Find the ordered pair solution of y = 3/4x + 7  that corresponds to x=8

To find the ordered pair solution, you plug in the x value, which is 8

y = 3/4 * 8 + 7 

y = 6 + 7

y = 13

I hope this helped, 

Supermanaccz