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Luda [366]
2 years ago
12

Why is this system no solution? 2y = 7 x -3 y = -2

Mathematics
1 answer:
Thepotemich [5.8K]2 years ago
5 0

Step-by-step explanation:

solved using substitution method

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Please help...this question is overdue because i cant figure out how to put it into form ANSWER CORRECTLY PLEASE
Ksenya-84 [330]

18.3 simplified 7.3.

or i could just be 7


4 0
3 years ago
manufacturing company produces digital cameras and claim that their products maybe 3% defective. A video company, when purchasin
alexdok [17]

Answer:

P(X>17) = 0.979

Step-by-step explanation:

Probability that a camera is defective, p = 3% = 3/100 = 0.03

20 cameras were randomly selected.i.e sample size, n = 20

Probability that a camera is working, q = 1 - p = 1 - 0.03 = 0.97

Probability that more than 17 cameras are working P ( X > 17)

This is a binomial distribution P(X = r) nCr q^{r} p^{n-r}

nCr = \frac{n!}{(n-r)!r!}

P(X>17) = P(X=18) + P(X=19) + P(X=20)

P(X=18) = 20C18 * 0.97^{18} * 0.03^{20-18}

P(X=18) = 20C18 * 0.97^{18} * 0.03^{2}

P(X=18) = 0.0988

P(X=19) = 20C19 * 0.97^{19} * 0.03^{20-19}

P(X=19) = 20C19 * 0.97^{19} * 0.03^{1}

P(X=19) = 0.3364

P(X=20) = 20C20 * 0.97^{20} * 0.03^{20-20}

P(X=20) = 20C20 * 0.97^{20} * 0.03^{0}

P(X=20) = 0.5438

P(X>17) = 0.0988 + 0.3364 + 0.5438

P(X>17) = 0.979

The probability that there are more than 17 working cameras should be 0.979 for the company to accept the whole batch

6 0
3 years ago
Predict which statements are true about the intervals of
uranmaximum [27]

Answer:

<em>Well, Your answer will be is </em><em>B,D,E.</em>

<em>Good Luck!~</em>

<em></em>^{Itsbrazts}<em></em>

4 0
3 years ago
If anyone knows help :]
lana66690 [7]
Angle EBD and Angle DBE are adjacent
6 0
3 years ago
All please I’ll give Brainliest answer
MAVERICK [17]
Hello there!

Number 1 = A

Number 2 = A

Number 3 = C


I hope My answer helped yu!

~ Fire
5 0
3 years ago
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