P(at least 2 students have the same birthday)= 1- P(no 2 students have the same birthday)
Because P(A)=1-P(A'), where A is an event, and A' the complement of that event.
P(no 2 students have the same birthday)=
think of the problem as follows. We have an urn of balls, numbered from 1 to 365 (the number of the days of the year.
What is the probability of picking 56 different numbered balls, with replacements?
The first one can be any of the 365
the second any of 364 (since one selection has already been made)
the third any of the 363
.
.
and so on
the 56th selection is one of 310 left
Answer:
Answer:
$183.3
Step-by-step explanation:
Ruth uses healthy credit to finance $2,200 for a hearing aid how much would she have to pay each month to pay back the loan in exactly 1 year
Ruth took a loan of $2,200
1 year = 12 months
Hence, the amount she would be paying monthly is calculated as:
$2,200/12 months
= $2,200/12
= $183.33333333
Approximately = $183.3
Therefore, Ruth would be paying $183.3 monthly.
Hey there!
<span><span>
-1/1 x 4/5
= -1 x 4
1 x 5
Answer: -4/5
Hope this helps
Have a great day (:
</span></span>
A rational number that is between 5 and 6 on the number line is 11/2.
An irrational number that is between 5 and 6 on the number line 
.
<h3>
What is rational number?</h3>
- Rational Numbers: Any number that can be written as a ratio (or fraction) of two integers is a rational number
- In mathematics, a rational number is a number that can be expressed as the quotient or fraction p/q of two integers.
- A numerator p and a non-zero denominator.
- For example, is a rational number just like any integer (e.g. 5 = the set of all rational numbers, also called "rational numbers", the field of rational numbers, or the field of rational numbers is usually , printed in bold
- Rational numbers are real numbers.
- This statement is not unique: not only in base 10, but also in other integer bases such as binary and hexadecimal (see Decimal repetition § Extensions to other bases).
To learn more about rational number from the given link:
brainly.com/question/24398433
#SPJ13
Answer:
x=39, y=180
Step-by-step explanation:
f(x)=0.4x²-31.2x+788.4
For x=39 the graph reaches its lowest point.
The minimum value of y is:
x=39→y=f(39)=0.4(39)²-31.2(39)+788.4
y=f(39)=0.4(1,521)-1,216.8+788.4
y=f(39)=608.4-1,216.8+788.4
y=f(39)=180
