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Sidana [21]
3 years ago
15

Which number is equivalent to (1/3)^-4 A.12 B.81 C.1/12 D.1/81

Mathematics
1 answer:
marishachu [46]3 years ago
6 0

Answer:

B

Step-by-step explanation:

(1/3)^-4

=1/[(1/3)^4]

=1/(1/81)

=81

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THIRTY FIVE POINTS.
son4ous [18]

Answer: 31500 to 38500

Step-by-step explanation:

Lets find lower limit of guess

35000 - ( 35000 * 10% )

= 31500

Upper limit of guess

35000 + ( 35000 * 10% )

= 38500

So your guess can be anything between these two values.

3 0
3 years ago
he number of surface flaws in plastic panels used in the interior of automobiles has a Poisson distribution with a mean of 0.02
Yakvenalex [24]

Answer:

a) 98.01%

b) 13.53\%

c) 27.06%

Step-by-step explanation:

Since a car has 10 square feet of plastic panel, the expected value (mean) for a car to have one flaw is 10*0.02 = 0.2  

If we call P(k) the probability that a car has k flaws then, as P follows a Poisson distribution with mean 0.2,

P(k)= \frac{0.2^ke^{-0.2}}{k!}

a)

In this case, we are looking for P(0)

P(0)= \frac{0.2^0e^{-0.2}}{0!}=e^{-0.2}=0.9801=98.01\%

So, the probability that a car has no flaws is 98.01%

b)

Ten cars have 100 square feet of plastic panel, so now the mean is 100*0.02 = 2 flaws every ten cars.

Now P(k) is the probability that 10 cars have k flaws and  

P(k)= \frac{2^ke^{-2}}{k!}

and  

P(0)= \frac{2^0e^{-2}}{0!}=0.1353=13.53\%

And the probability that 10 cars have no flaws is 13.53%

c)

Here, we are looking for P(1) with P defined as in b)

P(1)= \frac{2^1e^{-2}}{1!}=2e^{-2}=0.2706=27.06\%

Hence, the probability that at most one car has no flaws is 27.06%

6 0
3 years ago
Read 2 more answers
Prove: cot x (tan x + sin x) =1+ cos x
Sergio039 [100]
I hope this helps you

3 0
3 years ago
What is the value of x?
Archy [21]
B. 22.05 answer it’s b
3 0
3 years ago
5y + 3 > −7y + 13 Multi-step linear inequalities
Artemon [7]

Answer:

y > \frac{5}{6}

Step-by-step explanation:

Given

5y + 3 > - 7y + 13 ( add 7y to both sides )

12y + 3 > 13 ( subtract 3 from both sides )

12y > 10 ( divide both sides by 12 )

y > \frac{10}{12} , that is

y > \frac{5}{6}

3 0
3 years ago
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