Answer:
<h2><em> -12y² + 72y</em></h2>
Step-by-step explanation:
Use the distributive property: <em>a(b + c) = ab + ac</em>
<em>-12y(y - 6) = (-12y)(y) + (-12y)(-6) = -12y² + 72y</em>
There are 26 possible lowercase letters, 26 possible uppercase letters, and 10 possible numbers (0-9).
26+26+10=62
That means there's a 1/62 chance that they get one letter right.
But there's 15 letters.
They're chance would decrease each time to get it exact.
1/62 divided by 15/1 =
1/832
So there is a 1 in 832 chance that the hacker guesses it correct first try with that information.
x = number of weeks which is some positive whole number
50x = amount saved after x weeks, when saving $50 per week
50x+800 = add on the 800 she already has
The expression 50x+800 is the total money saved. We set this equal to the 1150 to set up the equation we're after
<h3>Answer: 50x+800 = 1150</h3>
