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2 years ago

The area of a triangle is 18 square feet. If the base is 3 feet, what is the height of the triangle? no pic

Mathematics

1 answer:

Leya [2.2K]2 years ago

5 0

Answer:

Im pretty sure the height of triangle would be 6

Step-by-step explanation:

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A box contains 5 red balls, 6 white balls and 9 black balls. Two balls are drawn at

valina [46]

Answer:

$P(Same)=\frac{61}{190}$

Step-by-step explanation:

Given

$Red = 5$

$White = 6$

$Black = 9$

Required

The probability of selecting 2 same colors when the first is not replaced

The total number of ball is:

$Total = 5 + 6 + 9$

$Total = 20$

This is calculated as:

$P(Same)=P(Red\ and\ Red) + P(White\ and\ White) + P(Black\ and\ Black)$

So, we have:

$P(Same)=\frac{n(Red)}{Total} * \frac{n(Red) - 1}{Total - 1} + \frac{n(White)}{Total} * \frac{n(White) - 1}{Total - 1} + \frac{n(Black)}{Total} * \frac{n(Black) - 1}{Total - 1}$

<em>Note that: 1 is subtracted because it is a probability without replacement</em>

$P(Same)=\frac{5}{20} * \frac{5 - 1}{20- 1} + \frac{6}{20} * \frac{6 - 1}{20- 1} + \frac{9}{20} * \frac{9- 1}{20- 1}$

$P(Same)=\frac{5}{20} * \frac{4}{19} + \frac{6}{20} * \frac{5}{19} + \frac{9}{20} * \frac{8}{19}$

$P(Same)=\frac{20}{380} + \frac{30}{380} + \frac{72}{380}$

$P(Same)=\frac{20+30+72}{380}$

$P(Same)=\frac{122}{380}$

$P(Same)=\frac{61}{190}$

4 0

2 years ago

10. Fred has to read a book for a test in 2 weeks. If he reads the same number of pages per day and the book has 350 pages, how

Angelina_Jolie [31]

Answer:

25 pages per day

Step-by-step explanation:

Fred has 14 days to finish 350 pages.

To find out how many pages he needs to read each day, we divide 350 by 14, to get 25.

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1 year ago

Read 2 more answers

Fill in each blank for the function f(x) = 3x - 6.

gayaneshka [121]

Answer:

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Step-by-step explanation:

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2 years ago

You have $1 and $5 bills in your savings envelope with a total value of $26. there are more $1 bills than $5. you would like to

marta [7]

I’m not very good at math, but maybe try adding all of them together

3 0

3 years ago

Help 1-8 I need answers and show work!!!

agasfer [191]

Answer:

hope this helps you out good luck

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2 years ago