Answer:
∑E(x
) = 13.49167 floors
Step-by-step explanation:
The expected number of floors no one get off = ∑E(x
) where i is from 0 to 23
and E(x
) = ∑x
P(x
)
here x
is the indicator of floor where no one gets off, its value is 0 when atleast one person get off on its floor and 1 when when no one gets off.
Now,
P(x
=1) = (22/23)¹²
P(x
=0) = [1-(22/23)¹²]
Now,
E(x
) = ∑x
P(x
) = 0* [1-(22/23)¹²] + 1*(22/23)¹² =0.586594704
For total number of floors where no one gets off
∑E(x
) = E(x₁)+E(x₂)+E(x₃)........................+E(x₂₃)
∑E(x
) = 23*0.586594704
∑E(x
) = 13.49167 floors
Answer:
$2273.19
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Algebra I</u>
Compound Interest Rate Formula: 
- A is final amount
- P is principle amount
- r is rate
- n is compound rate
- t is time (in years)
Step-by-step explanation:
<u>Step 1: Identify Variables</u>
P = $1900
r = 3% = 0.03
n = 4
<u>Step 2: Solve for </u><em><u>A</u></em>
- Substitute [CIRF]:

- (Parenthesis) Divide:

- (Parenthesis) Add:

- (Exponents) Multiply:

- Exponents:

- Multiply:

Answer:
33*32=1,056 square feet then divide 1,056÷132=8 you will need 8 cans to cover the court.
Answer:
The answer you should get is 9:3
Step-by-step explanation:
Answer:
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༼ つ ◕_◕ ༽つ 2