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3 years ago

7/8 = /48 A. 1 B. 6 C. 42 D. 13

1 answer:

6 0

7/8 = x/48

Cross multiply, which is: a/b = c/d ⇒ ad = bc

After cross multiplying, we get:

8x = 7(48)

8x = 336

Divide 8 on both sides

x = 42

Your final answer is B. 42<span>.</span>

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Lots of 40 components each are deemed unacceptable if they contain 3 or more defectives. The procedure for sampling a lot is to

MrRissso [65]

Answer:

The probability of founding exactly one defective item in the sample is P=0.275.

The mean and variance of defective components in the sample are:

$\mu=0.375\\\\\sigma^2=0.347$

Step-by-step explanation:

In the case we have a lot with 3 defectives components, the proportion of defectives is:

$p=3/40=0.075$

a) The number of defectives components in the 5-components sample will follow a binomial distribution B(5,0.075).

The probability of having one defective in the sample is:

$P(k=5)=\binom{5}{1}p^1(1-p)^4=5*0.075*0.925^4=0.275$

b) The mean and variance of defective components in the sample is:

$\mu=np=5*0.075=0.375\\\\\sigma^2=npq=5*0.075*0.925=0.347$

The Chebyschev's inequality established:

$P(|X-\mu|\geq k\sigma)\leq \frac{1}{k^2}$

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3 years ago

Which expression is equivalent to

bazaltina [42]

Answer:

Step-by-step explanation:

6m+9q-3mq+4m= 10m + 9q - 3mq = C

7 0

3 years ago

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Find x. Give your answer in the

garri49 [273]

Answer:

x = 4

Step-by-step explanation:

sin 30 = x/8

0.5 = x/8

x = 4

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3 years ago

Items owned that can be sold for cash are known as

vampirchik [111]

Assets are anything of value owned by a person that could easily be sold for cash. These could be property such as buildings, homes or land, or items such as cars, jewelry, boats, etc.

ANSWER: Assets are items owned that can be sold for cash.

Hope this helps! :)

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3 years ago

Chris plotted 3 points on the graph of the equation y=2x. Which coordinates name the points on Chris’s graph?

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Answer:

(0,0) (2,4) (-2,-4)

Step-by-step explanation:

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2 years ago