Answer:
Step-by-step explanation:
Using quadratic formula
we will have two solutions.
2x^2 - x - 4 = 0
So, a=2 b=-1 c=-4, we have:
Finally, we have two solutions:
Daniel is creating a scale drawing of her room. the rectangular room measures20 1/2 ft. by 25 ft. if her drawing uses the scale
2 answers:
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We need to convert given value 465^8 as the base 5 number.
Let us assume x is the exponent of 5 when we take base 5.
We can setup an equation now.
5^x=465^8
Taking ln on both sides, we get
On simplifying, we get
Therefore, .
The first digit of the password can be any of the ten digits - 10 possibilities.
A digit cannot be repeated, so the second digit can be any digit except the one you chose for the first digit - 9 possibilities.
The third digit can be any digit except the digits you chose for the first and second digit - 8 possibilities.
Using the rule of product:
There are 720 passwords.
A digit cannot be repeated, so the second digit can be any digit except the one you chose for the first digit - 9 possibilities.
The third digit can be any digit except the digits you chose for the first and second digit - 8 possibilities.
Using the rule of product:
There are 720 passwords.