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goldfiish [28.3K]

3 years ago

15

Joyce has as much money as George; then they bet 5 cents each and George lost. If, after the bet, George has x cents, how much d

oes Joyce have ?

1 answer:

dezoksy [38]3 years ago

5 0

George after bet: x - 5
Joyce after bet: x + 5

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Sound waves entering an area of warmer air

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Answer: Sound waves entering a warmer air means that the kinetic energy of the air particles will increase and thus the vibration of particles will be increased and thus the speed of transmission of sound waves increases.

Step-by-step explanation:

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Rectangle JKLM is rotated 90° clockwise about the origin. On a coordinate plane, rectangle J K L M has points (negative 4, 1), (

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The probability that a radish seed will germinate is 0.7. A gardener plants seeds in batches of

Harlamova29_29 [7]

The standard deviation for the number of seeds germinating in each batch is 1.3

<u>Solution:</u>

<em><u>In binomial distribution, standard deviation is given as:</u></em>

$\sigma=\sqrt{np(1-p)}$

Where "n" is the number of observations

"p" is probability of getting success

We are given that:

Total batches of seed = 8

Probability that a radish seed will germinate is 0.7

Here success is getting radish seed germinated

<em><u>Then, the standard deviation for the number of seeds germinating in each batch.</u></em>

Plugging in values in formula, we get

$\sigma=\sqrt{(8)(0.7)(1-0.7)}\\\\=\sqrt{(8)(0.7)(0.3)}\\\\=\sqrt{1.68}\\\\=1.29614\approx1.3$

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3 years ago

Solve for n: 1/4 (n-2)=1/4n-1/2

alisha [4.7K]

Answer:

See below:

Step-by-step explanation:

So, we start off with the equation: $\frac{1}{4} (n-2) = \frac{1}{4}n-\frac{1}{2}$

If we simplify, we can use the distrubutive property to simplify the equation:

Here is how it goes:

$\frac{1}{4} (n-2) = (\frac{1}{4} * n )+(\frac{1}{4}*-2)$

So upon simplification of that, we get here: $\frac{1}{4}n + -\frac{1}{2}= \frac{1}{4}n-\frac{1}{2}$

Hm, somethings off, do you see that they are the same thing...

So, that means that there would be infinately many solutions.

You can plugin any number and you would get the same result!

7 0

2 years ago