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3 years ago

15

Joey Will roll a number cube three times. What is the probability that he will roll a 2 each time?

1 answer:

inessss [21]3 years ago

4 0

Rolling a cube each time has a 1/6 probability of getting a 2
tthat means rolling the same dice 3 times will give you a probability of (1/6)^3
or 1/216

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represent the following sentence as an algebraic expression, where A number is X. A number more than 2.

xxMikexx [17]

Answer:

A>2 = X

If you simplify this then it just means A=X but A is more then 2.

I think ...

6 0

3 years ago

What is the place value of 7 in the number 0.724?

ollegr [7]

Answer:

tenths

Step-by-step explanation:

_ _ . _ _

tens, units, then decimal, tenths, hundreaths.

3 0

3 years ago

Diana invested $3000 in a savings account for 3 years. She earned $450 in interest over that time period. What interest rate did

Talja [164]

$\bf ~~~~~~ \textit{Simple Interest Earned} \\\\ I = Prt\qquad \begin{cases} I=\textit{interest earned}\dotfill&\$450\\ P=\textit{original amount deposited}\dotfill & \$3000\\ r=rate\to r\%\to \frac{r}{100}\\ t=years\dotfill &3 \end{cases} \\\\\\ 450=3000\left( \frac{r}{100} \right)(3)\implies 450=\cfrac{3000\cdot 3}{100}r \\\\\\ 450=90r\implies \cfrac{450}{90}=r\implies 5=r\implies \stackrel{\textit{in decimal}}{0.05=r}$

4 0

3 years ago

A business executive, transferred from Chicago to Atlanta, needs to sell her house in Chicago quickly. From conversations with h

Oksi-84 [34.3K]

Answer:

The standard deviation of the price she will get is $8,371.58.

Step-by-step explanation:

An uniform probability is a case of probability in which each outcome is equally as likely.

For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.

The variance of the uniform distribution is given by:

$V = \frac{(b-a)^{2}}{12}$

The standard deviation is the square root of the variance.

Uniformly distributed between $204,000 and $233,000

This means that $a = 204000, b = 233000$

So

$V = \frac{(b-a)^{2}}{12} = \frac{(233000 - 204000)^{2}}{12} = 70,083,333.33$

The standard deviation is the square root of the variance. So

$S = \sqrt{70,083,333.33} = 8,371.58$

The standard deviation of the price she will get is $8,371.58.

8 0

3 years ago

What percent of the 2019 world population lives in Canada? Round the percentage to three decimal places.

dimaraw [331]

0.486 % of world population lives in canada

<em><u>Solution:</u></em>

From given,

World population = 7691 million

Canada population = 37.4 million

We have to find the percent of world population lives in canada

Let "x" be the percent of world population lives in canada

Therefore, from question,

x % of world population = canada population

x % of 7691 = 37.4

<em><u>Solve the above equation for "x"</u></em>

$x \% \times 7691 = 37.4\\\\\frac{x}{100} \times 7691 = 37.4\\\\7691x = 3740\\\\Divide\ both\ sides\ by\ 7691\\\\x = \frac{3740}{7691}\\\\x = 0.486$

Thus 0.486 % of world population lives in canada

8 0

3 years ago