$2d=\frac{a-b}{b-c}\\\\\frac{a-b}{b-c}=2d\ \ \ \ \ |multiply\ both\ sides\ by\ (b-c)\\\\a-b=2d(b-c)\ \ \ \ |add\ "b"\ to\ both\ sides\\\\\boxed{a=2bd-2cd+b}$

7 0

3 years ago

Please help with this question?!?

erik [133]

Answer:

416 mi

Step-by-step explanation:

In order to find the surface area, you must find the area of each square. There are a total of 6 that make up the prism.

<em>Remember to find the area it is length x width</em>

9 x 8 = 72 which is the area for 4 of the squares. 2 on the side and 2 on the bottom
Lastly for the last 2 squares to find the area you multiply 8 x 8 = 64
In total, you will add 72+72+72+72+64+64 which equals 416

3 0

2 years ago

How many equal sections divide a directed line segment if it is to be partitioned with a 7:10 ratio?

Dafna11 [192]

The midpoint formula is x1+x2 over 2 and y1+y2 over 2. When you use it to find the midpoint of (0,-8) and (-4,10), you get (-2,1).

Slope formula is y2-y1 over x2-x1, which will give you -6.

6 0

2 years ago