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fredd [130]
3 years ago
10

Can u please do 1,2

Mathematics
1 answer:
Sidana [21]3 years ago
7 0
1) First, you have to add all the 3 pieces of wood
10+7.5+12= 29.5 ft.
Second, you have to add the pieces that he has used
5.2 +6.2= 11.4 ft
Third, you have subtract the used wood from the whole wood to get how many feet he didn't use
29.5 - 11.4=18.1 ft.
I hope it helped. But, sorry don't know how to do number 2.
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A die is rolled nine times and the number of times that two shows on the upper face is counted. If this experiment is repeated m
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Answer:

E(x) = 1.5\\

Step-by-step explanation:

Given

n = 9 -- number of rolls

Required

The mean of 2's

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X \to Binomial(n,p)

In this case:

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So, the mean of 2's is calculated using:

E(x) = np

E(x) = 9 * \frac{1}{6}

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Simplify

E(x) = \frac{3}{2} or

E(x) = 1.5\\

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3 years ago
You roll a six sided die and pull a card from a standard deck of 52 cards what is the probability that you roll a five and draw
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Answer:

1/24

Step-by-step explanation:

The probability of the dice landing with a 5 up is 1/6; that of drawing a heart is 13/52, or 1/4.

The joint probability of these two events (events happening simultaneously) is

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4 years ago
Stacy earned 11 bonus points. Linda earned b more bonus points than Stacy. Write an expression that shows how many bonus points
Maru [420]

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B+11

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Answer:

c) quadrant III

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\text {For }y

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4 years ago
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Aldo’s coffee shop makes a blend that is a mixture of two types of coffee.Type A coffee costs 5.6 per pound. Type B costs 4.05 p
Pie

Answer: 93

Step-by-step explanation: \\Since 160 cups of blend are sold , this means

\\A + B = 160

\\Since Type A is sold for 5.6 per pound , that means the total number of A sold = 5.6A

\\Also , Type B is sold for 4.05 per pound , the total number of B sold = 4.05B

\\And it was given that the total cost of blend = 751.85 , then

5.6A + 4.05B = 751.85

\\A + B = 160       ............................. eqn 1

\\5.6A + 4.05B = 751.85 ..................... eqn II

\\From eqn I , A = 160 - B ................ eqn III

\\Substitute A = 160 - B into equation II , then we have:

\\5.6(160 - B) + 4.05B = 751.85

\\Expanding , we have

\\896 - 5.6B + 4.05B = 751.85

\\896 - 1.55B = 751.85

\\collecting the like terms

\\1.55B = 896 - 751.85

\\1.55B = 144.15

\\Therefore B = 144.15/1.55

\\B = 93

8 0
4 years ago
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