All categories

2 years ago

A box contains 20 balls, of which are white. If the probability of selecting a non-white

Mathematics

1 answer:

Delicious77 [7]2 years ago

4 0

Answer:

if a box contains 20 balls in which all are white then the probability of selecting non white is 0

You might be interested in

Help fast plz with that

WITCHER [35]

THE ANSWER WOULD BE B!!!

3 0

3 years ago

Read 2 more answers

Please help!!! ASAP someone please

murzikaleks [220]

Answer:

0.31 yr

Step-by-step explanation:

The formula for interest compounded continuously is

$FV = PVe^{rt}$

FV = future value, and

PV = present value

If FV is twice the PV, we can calculate the doubling time, t

$\begin{array}{rcl}2 & = & e^{rt}\\\ln 2 & = & rt\\t & = & \dfrac{\ln 2}{r} \\\end{array}$

1. Brianna's doubling time

$\begin{array}{rcl}t & = & \dfrac{\ln 2}{0.065}\\\\& = & \textbf{10.663 yr}\\\end{array}$

2. Adam's doubling time

The formula for interest compounded periodically is

$FV = PV\left (1 + \dfrac{r}{n} \right )^{nt}$

where

n = the number of payments per year

If FV is twice the PV, we can calculate the doubling time.

$\begin{array}{rcl}2 & = & \left (1 + \dfrac{0.0675}{4} \right )^{4t}\\\\&= & (1 + 0.016875 )^{4t}\\& = & 1.016875^{4t}\\\ln 2& = & 4 (\ln 1.01688)\times t \\& = & 0.066937t\\t& = & \dfrac{\ln 2}{0.066937}\\\\& = & \textbf{10.355 yr}\\\end{array}$

3. Brianna's doubling time vs Adam's

10.663 - 10.355 = 0.31 yr

It would take 0.31 yr longer for Brianna's money to double than Adam's.

3 0

3 years ago

Help anyone can help me do this question,I will mark brainlest.

postnew [5]

Answer:

Step-by-step explanation:

7 0

3 years ago

Whats y-2=6x+3 in y=mx+b form

Lynna [10]

Adding 2 to the three gives you y=6x+5

4 0

4 years ago

Read 2 more answers

Josefina works between 10 and 30 hours per week at a pizzeria. She earns $6.50 an hour, but can earn tips when she delivers pizz

mafiozo [28]

a, 6.50h=d

b. 25 hours

7 0

3 years ago