The 9 is a coefficient because it is the first one before an 'algebraic number'. :)
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<span>Say the code only needed to be one number long. Going from 0-9, there are ten digits. Therefore, there are ten unique codes.
Now say the code has to be two numbers long. There are ten possibilities
for the first digit, 0-9. But the second digit only has nine
possibilities, since each number has to be different. (The first number
might be 0, so the second can only go from 1-9) For each of the first
ten possibilities, there are nine possibilities for the second. We
multiply those two numbers together, 10 * 9, and we get 90.
Now we just extend the logic. The third number only has eight
possibilities, while the fourth number only has seven. 10 * 9 * 8 * 7 =
5040 possible codes. I hope this helped! has a great day! :)</span>
Answer:the diameter is 7
Step-by-step explanation: 21.98 divide by pi is 7 so diameter is 7
To find the slope use Y2-Y1/X2-X1.
3-(-5)/1-(-3)
=8/4
=2
the slope of the line is 2.
m=2 plug into y=mx+b
use any set of coordinate points. ill use (1,3)
3=2(1)+b
b=1
SO YES YOU DID IT CORRECTLY!
