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1 year ago

Which statement is true for all parallelograms? (1 point)

Mathematics

1 answer:

Aloiza [94]1 year ago

8 0

The opposite sides are equal in length.

Step-by-step explanation:

Opposite sides of a parallelogram must be congruent. This is a property of all parralelograms.

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The average birth weight of elephants is 200 pounds. Assume that the distribution of birth weights is Normal with a standard dev

zhenek [66]

The birth weight of elephants at the 85th percentile is 262.16 pounds

<h3>What is the standard deviation?</h3>

Standard deviation is defined as the amount of variation or the deviation of the numbers from each other.

Given that:-

The average birth weight of elephants is 200 pounds $\mu$ = 200

The deviation of 60 pounds. $\sigma$ = 60

The birth weight of elephants at the 85th percentile. z = 85%= 1.036

Now from the formula of z-score:-

$z=\dfrac{x-\mu}{\sigma}\\\\\\z=\dfrac{x-200}{60}\\\\\\1.036\times 60=x-200\\\\\\x=\ \ 262.16\ pounds$

Hence the birth weight of elephants at the 85th percentile is 262.16 pounds

To know more about standard deviation follow

brainly.com/question/475676

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5 0

1 year ago

What is a quick way to tell other 8th graders how to tell if an equation will have one solution, no solution, or infinite soluti

atroni [7]

Answer:

if an equation has the same slope and y intercept the equations will have infinite many solutions. If both equations have the same slope but different y intercept the equations will have no solutions. if both equations are positive or negative and have different slopes and different y intercepts then they will most likely have one solution. (example: y=-2x+3 and y= -4x+4, both slopes are negative so there will be one solution, same goes for if both slopes are positive.

Hope this helps!

3 0

3 years ago

Elanso [62]

Pile Y has the greater mean number of pages per book because it is 5 books less than pile W.

<h3>How to calculate greater mean number of pages?</h3>

From the complete information, we can deduce that the number of each pile of book is given as follows:

Red books = 10 × 5 = 50 red books.

Blue books = 5 × 5 = 25 blue books.

Therefore, total books in pile W = 50 + 25 = 75 books.

Mathematically, the mean for each pile can be calculated by using the following formula:

Mean = [F(x)]/n

Mean = 75/10

Mean = 7.5.

Red books = 10 × 5 = 50 red books.

Mean = [F(x)]/n

Mean = 50/5

Mean = 10.

In conclusion, pile Y has the greater mean number of pages per book because it is 5 books less than pile W.

Read more on mean here: brainly.com/question/9550536

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4 0

1 year ago

Help pls i’ll name u brainiest

aleksklad [387]

F(x) = 3x + 2
f(x + 3) = 3(x+3) + 2
f(x+3) = 3x + 9 + 2
f(x+3) = 3x + 11 (Answer)

7 0

3 years ago

Créstòr bought a terrarium that is 24 inches wide, 48 inches long and 20 inches high. A bag of special dirt at the pet store onl

lesantik [10]

Answer:

A. 24

B. $203.52

Step-by-step explanation:

A. Number of bags.

To see how many bags of dirt Crèstòr will have to buy, we have to calculate the volume of the terrarium he just bought.

It's rectangular prism, so the formula for its volume is simple: length x width x height

So, let's se... 48 x 24 x 20 = 23,040 cubic inches.

How many bags will he have to buy? Each bag contains 1,000 cubic inches. So, 23,040 / 1,000 = 23.04

He will then need to buy 24 bags (because with 23, the terrarium won't be full).

B. Cost of the bags with 6% tax.

First, we need to know how much the total before tax is. We know he's buying 24 bags and that each bag costs $8.

T = 24 * $8 = $192

Now, if we want to have the total with the 6% tax added, we multiply this total by 1.06 (1.00 for the total + 0.06 for the tax).

Total WITH tax: $192 * 1.06 = $203.52

Amount of the tax: $203.52 - $192 = $11.52

4 0

3 years ago