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3 years ago

How to solve 17.1 - 8.2y = -7.02

Mathematics

1 answer:

Wewaii [24]3 years ago

4 0

the answer is

$y = 2.941463$

which is closest to 3.

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Find the z-score such that the area under the standard normal curve to the left is 0.79.

Varvara68 [4.7K]

Answer:

Step-by-step explanation:

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8 0

4 years ago

The probability that a lab specimen contains high levels of contamination is 0.12. A group of 4 independent samples are checked.

sergiy2304 [10]

Answer:

0.5996 is the probability that none contain high levels of contamination.

Step-by-step explanation:

We are given the following information:

We treat lab specimen containing high levels of contamination as a success.

P( lab specimen containing high levels of contamination) = 0.12

Then the number of lab specimens follows a binomial distribution, where

$P(X=x) = \binom{n}{x}.p^x.(1-p)^{n-x}$

where n is the total number of observations, x is the number of success, p is the probability of success.

Now, we are given n = 4

We have to find the probability that none of the lab specimen consist of high level of contamination.

We have to evaluate:

$P(x = 0)\\= \binom{4}{0}(0.12)^0(1-0.12)^{(4-0)}\\= 0.5996$

0.5996 is the probability that none contain high levels of contamination.

5 0

4 years ago

Let Pn be the vector space of all polynomials of degree n or less in the variable x. Let D²: P4→P2 be the linear transformation

Tatiana [17]

Answer:

Step-by-step explanation:

Please view the attached file.

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8 0

3 years ago

An amount of $550000 was realised when a principal, x was saved at 2% simple interest for 5years. find the value of x

Marina CMI [18]

Answer:

principal=x

amount=principal+interest

550000=x+interest

interest=550000-x

I=PRT/100

550000-x=x×2×5/100

550000-x=10x/100

550000-x=x/10

10(550000-x)=x

5500000-10x=x

5500000=x+10x

5500000=11x

x=5500000/11

x=500000

I would appreciate if my answer is chosen as a brainliest answer

5 0

3 years ago

Given the equation below, which of the following shows the quadratic formula

Musya8 [376]

Answer:

Step-by-step explanation:

$x=\frac{-(-9)\pm\sqrt{(-9)^2-4(2)(4)} }{2 \times 2} \\x=\frac{9\pm\sqrt{81-32} }{4} \\x=\frac{9\pm\sqrt{49} }{4} \\x=\frac{9 \pm 7}{4} \\either~x=\frac{9+7}{4} =\frac{16}{4} =4\\or\\x=\frac{9-7}{4} =\frac{2}{4} =\frac{1}{2}$

7 0

2 years ago