Ask question

Ask question

All categories

ivanzaharov [21]

3 years ago

14

A bag contains 4 red marbles and 6 blue marbles. Brandon selects one marble from the bag. Without replacing the marble he then s

elects a second marble. What is the probability he selects a red marble given that he first selects a blue marble?

1 answer:

IgorC [24]3 years ago

4 0

The probability would be 4/15

You might be interested in

Factor 9x^2 -5 . using difference of squares

lawyer [7]

$\bf \textit{difference of squares}
\\ \quad \\
(a-b)(a+b) = a^2-b^2\qquad \qquad 
a^2-b^2 = (a-b)(a+b)\\\\
-------------------------------\\\\
9x^2-5\qquad 
\begin{cases}
9x^2=3^2x^2\\
\qquad (3x)^2\\
5=\sqrt{5^2}\\
\qquad (\sqrt{5})^2
\end{cases}\implies
\begin{array}{llll}
(3x)^2-(\sqrt{5})^2
\\\\\\
(3x-\sqrt{5})~(3x+\sqrt{5})
\end{array}$

5 0

3 years ago

Five friends—Allison, Beth, Carol, Diane, and Evelyn— have identical calculators and are studying for a statistics exam. They se

brilliants [131]

Answer:

20%

Step-by-step explanation:

this is because that 1 in 5 is equal to 20%

7 0

2 years ago

Apply the distribution

kicyunya [14]

Answer:

20(3m-2)

Step-by-step explanation:

In order to factor, you have to look for the greatest common factor, or what the biggest number could the two numbers be divided by.

In this case, both numbers can be divided by 20, and so we put the 20 outside of the parentheses.

This leaves with 3m and -2, which are left inside the parentheses.

Hope this helps :)

8 0

3 years ago

A summary measure that is computed to describe a population characteristic from a sample is called a: A) statistic. B) census. C

Juliette [100K]

Answer:

A. Statistic

Step-by-step explanation:

Usually whole population is difficult to cover so the part of population is considered to assess the aspects of population. The statistic is the quantity which summarizes the sample. The problem illustrate that summary measure is calculated from sample to describe a population. As the summary measure is computed from sample then it is a statistic.

5 0

3 years ago

Pls help me on this i don't know what to do

Katarina [22]

Answer:

$\text{A. The zeroes are 8 and -4, because }y=(x-8)(x+4)$

Step-by-step explanation:

$x^2-4x-32=0,\\(x-8)(x+4)=0,\\\begin{cases}x-8=0, x=\boxed{8},\\x+4=0, x=\boxed{-4}\end{cases}$

8 0

3 years ago