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ss7ja [257]
3 years ago
15

and Equipment safety test requires five independent tests. Each of these test has a 78% pass rate. The equipment will only be gi

ven a positive safety rating if it passes all five tests. Find the probability of equipment receiving a positive rating.
Mathematics
1 answer:
yanalaym [24]3 years ago
5 0
The probability that the equipment will receive a positive rating and pass all five tests is approximately 28.89%
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Find the total surface area of a sphere radius being 7cm
Lilit [14]

Answer:

A≈615.75m²

Step-by-step explanation:

Solution

A=4πr2=4·π·72≈615.75216m²

Hope this helped!!!

6 0
3 years ago
Carrie borrowed money from her sister Melissa. She has been paying her back $80 a month for the past 5 months. If this is 32% of
MrRa [10]

The money which is borrowed by Carrie to her sister Melissa which she has been paying her back $80 a month is $1250.

<h3>What is percentage of a number?</h3>

Percentage of a number is the part of the whole number which is expressed in the fraction of hundredth. It is represented with "%" symbol.

Carrie borrowed money from her sister, whose name is Melissa. She has been paying her back $80 a month for the past 5 months. Thus, the total amount she has returned is,

x=$80×5

x=$400

Now, the $400 is 32% of the money that she borrowed. Thus, the amount of money which she borrowed is,

\text{Money}=\dfrac{400}{32}\times100\\\text{Money}=1250

Thus, the money which is borrowed by Carrie to her sister Melissa which she has been paying her back $80 a month is $1250.

Learn more about the percentage here;

brainly.com/question/2085058

#SPJ1

4 0
2 years ago
The polynomial y=x^2-2x 1 has a repeated factor. true or false?
aev [14]
Hello,

y=x^{2}-2x+1=(x-1)^2=(x-1)(x-1)\\

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5 0
3 years ago
Ming reads 1/4 of a book each night. How long will it take her to read 3/4 of the book?
luda_lava [24]
3 nights obvs idk how you couldn't get the answer
7 0
3 years ago
Read 2 more answers
Is 12a-a simplified?
7nadin3 [17]
12a−a

=12a−1a

=12a+−1a

=a+a+a+a+a+a+a+a+a+a+a+a+−a

=a+a+a+a+a+a+a+a+a+a+a

=11a

5 0
3 years ago
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