Look at the picture.
ΔZYX and ΔDYC are similar. Therefore the lengths of sides are in proportion:
![\dfrac{DC}{ZX}=\dfrac{DY}{ZY}](https://tex.z-dn.net/?f=%5Cdfrac%7BDC%7D%7BZX%7D%3D%5Cdfrac%7BDY%7D%7BZY%7D)
DC = x
ZX = 16
DY = a
ZY = a + a = 2a
Substitute:
![\dfrac{x}{16}=\dfrac{a}{2a}](https://tex.z-dn.net/?f=%5Cdfrac%7Bx%7D%7B16%7D%3D%5Cdfrac%7Ba%7D%7B2a%7D)
<em>multiply both sides by 16</em>
![\boxed{x=8}](https://tex.z-dn.net/?f=%5Cboxed%7Bx%3D8%7D)
<h3>Answer: CD = 8</h3>
<span>They are finite sums of expressions of the form where a is a constant, x is the variable and k is a non-negative integer</span>
Answer:
First, draw a rectangle and draw 3 lines going vertically. Then, draw the diagonal lines (shown in step 3) write the 4 digit number you are multiplying with the 1 digit number on top of the table (step 2) and multiply, when you are done multiplying, add the numbers vertically. Finally, you have your answer
Step-by-step explanation:
A=100
b=8
w=108
756 divided by 7=108
Answer:
4.2
Step-by-step explanation:
First I did 54 divided by 3 which is 18. Then I found the square root of 18.