3 years ago

Which expression represents the probability of rolling a 5 exactly three times in ten rolls of a number cube with six sides?

2 answers:

8 0

I'm not sure what the options are as this appears to be a multiple choice question, but this probability is as follows:
$P(X=3)={10\choose3}(\frac{1}{6})^3(\frac{5}{6})^7$

scoray [572]3 years ago

4 0

Answer:

Step-by-step explanation:

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The sum<br> of three consecutive integers is - 126. What are the integers?

Leno4ka [110]

Let the three consecutive integers be x , x+1 ,x+2
Given, sum of three consecutive integers = -126
x +x+1+ x+2 = -126
3x +3 = -126
3x = -126 -3
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x = -129/3
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2 years ago

How to factor 4x^2+7x-15

GuDViN [60]

$4x^2+7x-15$

Break the expression into group:

$(4x^2+5x)+(12x-15)$

factor out x from 4x² - 5x : x (4x-5)
factor out 3 from 12x-15 : 3 (4x-5)

$=x(4x-5)+3(4x-5)$

factor out common term (4x-5) :

$= (4x-5)(x+3)$

hope this helps!

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3 years ago

A bread company makes 9 types of bread. A restaurant chain ordered 497 loaves of each kind of bread. How many loaves of bread in

Aleksandr [31]

9 types of bread....a restaurant orders 497 loaves of each type

so there are (497 * 9) = 4473 loaves ordered in total

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3 years ago

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Sveta_85 [38]

The ratio of 3/20 is 3:20

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