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3 years ago

Li rolls a number cube labeled 1 to 6 a total of 24 times. How many times can she expect to roll a 1

Mathematics

2 answers:

scoundrel [369]3 years ago

8 0

Li can expect to roll a one 4 times.

Since there are six possibilities (1, 2, 3, 4, 5 & 6), you divide 24 and 6 to get 4.

atroni [7]3 years ago

5 0

Answer:

Li can except to roll one 4 times.

Step-by-step explanation:

since there are six possibilities (1,2,3,4,5,&6), you divide 24 and 6 to get 4.

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mafiozo [28]

Answer:

$Ratio = \frac{R^2 - r^2 }{ r^2}$

Step-by-step explanation:

Given

See attachment for circles

Required

Ratio of the outer sector to inner sector

The area of a sector is:

$Area = \frac{\theta}{360}\pi r^2$

For the inner circle

$r \to radius$

The sector of the inner circle has the following area

$A_1 = \frac{\theta}{360}\pi r^2$

For the whole circle

$R \to Radius$

The sector of the outer sector has the following area

$A_2 = \frac{\theta}{360}\pi (R^2 - r^2)$

So, the ratio of the outer sector to the inner sector is:

$Ratio = A_2 : A_1$

$Ratio = \frac{\theta}{360}\pi (R^2 - r^2) : \frac{\theta}{360}\pi r^2$

Cancel out common factor

$Ratio = R^2 - r^2 : r^2$

Express as fraction

$Ratio = \frac{R^2 - r^2 }{ r^2}$

6 0

2 years ago

if angle 1 and angle 2 are vertical angles, angle 2 and angle 3 are complementary angles and the measure of angle 3 is 56 degree

dimulka [17.4K]

Answer:

34º

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