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3 years ago

5

Ashley's Internet service is terribly unreliable. In fact, on any given day, there is a 15% chance that her Internet connection

will be lost at some point that day. What is the probability that her Internet service is not broken for five days in a row

1 answer:

stepan [7]3 years ago

6 0

Answer:.3 .3 .3 .3 .3 *.3 = .0007

Step-by-step explanation:

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Determine the measure of EBD

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Answer:

Answer:

EBD= 156

Step-by-step explanation:

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Teresa's restaurant bill comes to $29.99 before tax. If the sales

vivado [14]

The answer is $37.86 !! hope this helps

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3 years ago

Two customers went to a post office to buy postcards and large envelopes. Each postcard

astraxan [27]

The right answer is Option A.

Step-by-step explanation:

Let,

x be the postcards

y be the large envelops

According to given statement;

14x+5y=12 Eqn 1

10x+15y=24.80 Eqn 2

Multiplying Eqn 1 by 3;

$3(14x+5y=12)\\42x+15y=36\ \ \ Eqn \ 3$

Subtracting Eqn 2 from Eqn 3;

$(42x+15y)-(10x+15y)=36-24.80\\42x+15y-10x-15y=11.20\\32x=11.20\\$

Dividing both sides by 32

$\frac{32x}{32}=\frac{11.20}{32}\\x=0.35$

Putting x=0.35 in Eqn 1;

$14(0.35)+5y=12\\4.90+5y=12\\5y=12-4.90\\5y=7.10$

Dividing both sides by 5

$\frac{5y}{5}=\frac{7.10}{5}\\y=1.42$

Therefore, one large envelope costs $1.42

The right answer is Option A.

Keywords: linear equations, subtraction

Learn more about linear equations at:

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3 years ago

What is the probability of rolling a 10 out a 12 sided die

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1/12

There is 1 side of the die that has a ten on it and 12 sides in total. Therefore, there is a 1/12 chance of rolling a ten on this die.

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7.1.13 Question Help Use the sample data and confidence level given below to complete parts (a) through (d). A research institut

r-ruslan [8.4K]

Answer:

The Point estimate of the Population proportion E = 0.039≅0.04

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given that the sample size 'n' = 992

and x = 570

The Population proportion

$p = \frac{x}{n} = \frac{570}{992} = 0.5745$

<u><em>Step(ii):-</em></u>

<u><em>The point estimate of the Population proportion is determined by</em></u>

<u><em></em></u> $E = 2.576 \frac{\sqrt{0.574(1-0.574)} }{\sqrt{992} }$ <u><em></em></u>

E = 0.039≅0.04

<u><em>Final answer</em></u>:-

The point estimate of the Population proportion E = 0.039≅0.04

<u><em></em></u>

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3 years ago