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3 years ago

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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Whats the difference between domain and range?

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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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3 years ago

3x^2+7x+3 + 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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3 years ago

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PLZ HELP WILL MARK BRAINLEST +10 POINTS

mixas84 [53]

Answer:

It's C

The X and Y coordinates are both negative

Step-by-step explanation:

Quadrant 1- negative and positive

Quadrant 2- positive and positive

Quadrant 3- negative and negative

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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 X represent the number of defective LED light bulbs.

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

A random sample of n = 10 LED light bulbs is selected.

The event of a specific LED light bulb being defective is independent of the other bulbs.

The random variable X thus follows a Binomial distribution with parameters n = 10 and p = 0.03.

The probability mass function of X 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:

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

$=1\times 1\times 0.737424\\=0.737424\\\approx 0.7374$

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

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3 years ago