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crimeas [40]
3 years ago
7

An unfair coin with p(h) = 0.6 is flipped 3 times and the result of each toss is noted. what is the probability that there are a

t least two heads?

Mathematics
1 answer:
mr_godi [17]3 years ago
4 0
Total possible outcomes: (2)³=8 (heads or tails possibility on each toss) 

Draw out a Tree diagram to illustrate the given example, labelling the probability on each branch. 

Adding all the possible situations with P(t)≥2, we get 0.352 as the probability. 

Hope I helped :) 

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Marci needs to rent a storage unit. She needs to determine the volume of the storage unit to decide if the storage unit is big e
stealth61 [152]

Answer:

Volume = 176ft^3

Step-by-step explanation:

Given

Height = 8

See attachment for base dimension

Required

Determine the volume of the storage unit

From the attachment, we can split the base dimension into two rectangles.

CDEF and ABCG

And the dimensions are:

<u>CDEF</u>

EF = CD = BD - BC = 5 - 2 = 3

ED = FC = FG +AB = 4 + 2 =6

So, the area of CDEF is:

Area = EF * ED

Area = 3 * 6

Area = 18

<u>ABCG</u>

<u></u>AB= GC = 2<u></u>

<u></u>AG = BC = 2<u></u>

<u></u>

<u></u>Area = AB * AG<u></u>

Area = 2 * 2

Area = 4

So, the base area is:

Base\ Area = 18 + 4

Base\ Area = 22

The volume is then calculated as:

Volume = Base\ Area * Height

Volume = 22 * 8

Volume = 176

7 0
3 years ago
1/3·(−3x+4y−5z) help plz
Maksim231197 [3]

Answer:

To solve this we need to form 2 equations with only 2 variables.

x+4y-5z=-7

2x+y+5z=8

3x+5y=1

15x+10y+15z=35

6x+3y+15z=24

9x+7y=11

Now we need to use these to find x and y

9x+15y=3

9x+7y=11

8y=-8

y=-1

Therefore:

x=2

From this we can find that:

2(2)-1+5z=8

Therefore z=1

The answer is x=2, y=-1, z=1

7 0
3 years ago
Read 2 more answers
Heights of women have a​ bell-shaped distribution with a mean of 159159 cm and a standard deviation of 55 cm. using​ chebyshev's
GarryVolchara [31]
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6 0
3 years ago
A number is multiplied by 20, and that product is added to 5. The sum is equal to the product of 5 and 13.
liubo4ka [24]

Answer:

x = 3

Step-by-step explanation:

First, you will pick the first equation :

(x*20)

Then the next,

(x*20) + 5

Then the last equation,

(x*20) + 5 = 5*13

Then you solve

20x + 5 = 65

20x = 65 - 5

20x = 60

20x/20 = 60/20

x = 3

5 0
2 years ago
A set of house plans is made in the ratio 30:1. if a room is 6m long,how long is this room on the plan
mario62 [17]

Answer:

0.2

Step-by-step explanation:

30: 1

6:?

cross multiply

(6*1)/30

ans:0.2cm

7 0
3 years ago
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