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3 years ago

9

One coin is taken at random from a bag containing 5 nickels, 3 dimes, and 6 quarters. Let X be the value of the coin selected. F

ind E(X). (Round your answer to two decimal places.) E(X)

1 answer:

Fynjy0 [20]3 years ago

7 0

Answer:

14.64 cents

Step-by-step explanation:

5(5/14) + 10(3/14) + 25(6/14)

= 205/14

Approx. 14.64 cents

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aleksley [76]

The volume of the given rectangular prism is option C. $24 un^{3}$ .

Step-by-step explanation:

Step 1:

The dimensions of the given rectangular prism are 4 units × 3 units × 2 units.

So we take the length equals 4 units, the width is equal to 3 units and the height is 2 units.

Step 2:

The volume of this rectangular prism is calculated by multiplying the given prism's length, its width, and its height.

The Volume of the given rectangular prism = $( Length) (Width) (Height) = (4units) (3units) (2 units) = 24 unit^{3} .$

So the given right rectangular prism's volume is $24 unit^{3}$ which is option C.

8 0

3 years ago

natita [175]

Answer:

39 sq cm

Step-by-step explanation:

Ok. Since ΔAED is isosceles, then the height of the trapezoid is 3 cm

One base is 16 and the other base is 16 - 3 - 3 = 10.

A = 1/2 h( $b_{1}$ + $b_{2}$ ) where $b_{1}$ and $b_{2}$ are lengths of the bases

A = 1/2(3)(10 + 16)

= 1/2(3)(26)

= 39 sq cm

8 0

3 years ago

Highest common factor of 24,32,40

s344n2d4d5 [400]

Answer:

8

Step-by-step explanation:

5 0

2 years ago

A tournament is being run between two teams, A and B. This is a 2- tournament meaning that the first team to win 2 games is the

natta225 [31]

Answer:

Step-by-step explanation:

For first game PA = 1/3

For second game PA = 1/3 ( If A is not lost in first game )

= 2/5 (If A is lost in first game )

For conclusion of game in three matches :

If A wins , the probability is

PA , PB , PA = 1/3 X 2/3 X 3/5 = 6/45

PB , PA , PA = 2/3 X 3/5 X 1/3 = 6/45

If B wins

PA, PB, PB = 1/3 X 2/3 X 2/5 = 4/ 45

PB, PA , PB = 2/3 X 3/5 X 2/3 = 4 / 15

Total probability of conclusion of game in 3 matches

= 6/45 +6/45 + 4/45 +4/15 = 28/45

b )

For the game concluding in 2 matches , the probability are as follows

PA,PA = 1/3 X 1/3 = 1/9

PBPB = 2/3 X 2/5 = 4 / 15

Total probability

= 1/9 + 4/15 = 17/45

So PA = 1/9 / 17/45

= 5/17

5 0

3 years ago

What is another way to write the calculation add 16 and 25, and then multiply by 47?

GarryVolchara [31]

Answer:

(16+25)×47

Step-by-step explanation:

..........

8 0

2 years ago

Read 2 more answers