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BartSMP [9]
3 years ago
8

A real airplane has a length of 80 feet. Use the scale 1:8 to find out the length of the

Mathematics
1 answer:
marysya [2.9K]3 years ago
7 0

Answer:

The model airplane is 10 feet.

Step-by-step explanation:

1/8= 0.125

0.125 x 80 = 10 feet

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In its simplest form the domain is all the values that go into a function, and the range is all the values that come out.

Step-by-step explanation:

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3x^2+7x+3<br> + 5x^2+12x
Dvinal [7]

Answer:

8x^2+19x

Step-by-step explanation:

Simplify the expression by combining like terms. Terms which look a like and sound a like should be added together.

3x^2+7x+3+5x^2+12x

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7 0
2 years ago
A manufacturing company regularly conducts quality control checks at specified periods on the products it manufactures. Historic
Rina8888 [55]

Answer:

The probability that none of the LED light bulbs are​ defective is 0.7374.

Step-by-step explanation:

The complete question is:

What is the probability that none of the LED light bulbs are​ defective?

Solution:

Let the random variable <em>X</em> represent the number of defective LED light bulbs.

The probability of a LED light bulb being defective is, P (X) = <em>p</em> = 0.03.

A random sample of <em>n</em> = 10 LED light bulbs is selected.

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The probability mass function of <em>X</em> is:

P(X=x)={10\choose x}(0.03)^{x}(1-0.03)^{10-x};\ x=0,1,2,3...

Compute the probability that none of the LED light bulbs are​ defective as follows:

P(X=0)={10\choose 0}(0.03)^{0}(1-0.03)^{10-0}

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Thus, the probability that none of the LED light bulbs are​ defective is 0.7374.

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