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Ugo [173]
3 years ago
13

Factor the expression completely 2x^2-18

Mathematics
1 answer:
Nastasia [14]3 years ago
8 0

Answer:

C)2(x-3)(x+3)

Step-by-step explanation:

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With one method of a procedure called acceptance sampling, a sample of items is randomly selected without replacement and the en
GuDViN [60]

Answer:

P = 0.1447

Step-by-step explanation:

Given

n = 7000 -- total

d = 180 --- defective

r = 6 --- selected

Required

The probability of rejecting the batch

This means that at least one of the selected piece is defected.

So, we first calculate the probability that all the selected piece are accepted.

So, we have:

Pr = \frac{7000 - 180}{7000} * \frac{6999 - 180}{6999}* \frac{6998 - 180}{6998}* \frac{6997 - 180}{6997}* \frac{6996 - 180}{6996}* \frac{6995 - 180}{6995}

The denominator decreases by 1 because it is a probability without replacement; 180 is subtracted from the numerator to represent the number of non-defective CDs

So, we have:

Pr = \frac{6820}{7000} * \frac{6819}{6999}* \frac{6818}{6998}* \frac{6817}{6997}* \frac{6816}{6996}* \frac{6815}{6995}

Pr = 0.8553

Using the complement rule, the probability that the batch will be rejected is:

P = 1 - 0.8553

P = 0.1447

8 0
2 years ago
An ancient Roman coin is found and a curious anthropologist wishes to determine if the coin is fair— Fair meaning that when flip
Mamont248 [21]
The coin wouldn't be fair, because it landed on heads 72/100 times. If the coin was fair, the results should be equivalent to 1/2.
7 0
3 years ago
Read 2 more answers
ASAP<br> 3(– 2а - 4) + За
Irina-Kira [14]

Answer:

3a -12

Step-by-step explanation:

3(– 2а - 4) + За  →  -6a - 12 + 3a  →  -3a -12

3 0
3 years ago
Write the fraction as a product of a whole number 4/8, 8/12, 3/4
Mademuasel [1]
You simplefie them and get 1/2 for 4/8
2/3 for 8/12
3/4 cannot be somplified
8 0
3 years ago
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The graph shows g(x), which is a translation of f(x) = x². Write the function rule for g(x).
mixas84 [53]

Answer:

g(x) = (x + 8)^{2}

Step-by-step explanation:

7 0
2 years ago
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