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3 years ago

Hi:) anyone able to explain this formula? Thanks!

Mathematics

1 answer:

stealth61 [152]3 years ago

3 0

Answer:

Step-by-step explanation:

This basically the general formula of Slope point form for the linear equation.

Defining the slope of the line and a point on the line (not actually the y-intercept)

(x1,y1) = Point on the line

m = slope on the line

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Please help with math

Olenka [21]

Answer:

648 cm³

Step-by-step explanation:

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volume=108×6=648 cm³

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3 years ago

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3. Uniform A package delivery service breaks up its shipping charges into weight classes, where the package weights are uniforml

Tamiku [17]

Answer:

a) 50% of packages in this class would weigh less than 11 lbs.

b) 25% would weigh more than 11.5 lbs.

c) The average weight for a package in this class is 11 lbs.

Step-by-step explanation:

An uniform probability is a case of probability in which each outcome is equally as likely.

For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.

The probability that we find a value X lower than x is given by the following formula.

$P(X \leq x) = \frac{x - a}{b-a}$

For this problem, we have that:

a. Suppose one of the shipping classes is 10 to 12 lbs. What proportion of packages in this class would weigh less than 11 lbs?

Uniform distribution from 10 lbs to 12 lbs, this means that $a = 10, b = 12$ .

The answer is $P(X \leq 11)$ .

$P(X \leq 11) = \frac{11 - 10}{12-10} = 0.5$

50% of packages in this class would weigh less than 11 lbs.

b. What proportion would weigh more than 11.5 lbs?

Either a package weighs 11.5 lbs or less, or it weighs more than 11.5 lbs. The sum of the probabilities of these events is decimal 1. So:

$P(X \leq 11.5) + P(X > 11.5) = 1$

$P(X > 11.5) = 1 - P(X \leq 11.5)$

$P(X > 11.5) = 1 - \frac{11.5-10}{12-10}$

$P(X > 11.5) = 0.25$

25% would weigh more than 11.5 lbs.

c. What would the average weight for a package in this class be?

The mean M of the uniform distribution is:

$M = \frac{a+b}{2}$

$M = \frac{10+12}{2} = 11$

The average weight for a package in this class is 11 lbs.

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3 years ago

|x|-5 what does the vertical bar means?

Masja [62]

Answer:

it means absolute valuen so anything inside becomes a positve.

Step-by-step explanation:

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3 years ago

What is the measure of the other two angles?

nordsb [41]

Answer:

50° & 90°

Step-by-step explanation:

it's a right angle triangles, so one must be 90°

Interior angles in a triangle add up to 180.

180 - 90 - 40 = 50°

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3 years ago

1 + 4.25n + 3/2p – 3 + (–2p) + 5/4n simplify

koban [17]

The answer is B.....

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3 years ago

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