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Katyanochek1 [597]
3 years ago
13

True/False: Sound waves are produced by

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
7 0
True, sound waves are created when vibrated and they travel through transverse waves
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my dad is 40 miles away at work...if he leaves work at 6:24pm...and travels at an average of 43 miles per hour...what time is he
ExtremeBDS [4]
If his speed is 43 mph, then it takes him 40/43 of an hour to go 40 miles.

An hour = 60 minutes.

40/43 of 60 minutes = 55.8 minutes. He gets home 55.8 minutes after 6:24 PM.
3 0
3 years ago
Read 2 more answers
I need help on this mathematical problem. thank you!
svp [43]
X*.50= the longer chain
X is how long the first chain is.

It is correct, because they wanted 50% more. More meaning multiply so you would multiply x the first chain times how mor long it needs to be.
7 0
4 years ago
© A boy has N800. He spends N160. What
Anni [7]

Answer:

4/5

Step-by-step explanation:

800 - 160 = 640  \\   \frac{640}{800}  =  \frac{4}{5}

5 0
3 years ago
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Find the distance between (-5,-6) and (-3,-8 WILL GIVEBRANLIEST TO FIRST PERSON WHO AWNSES WITH EXPLANATION
Vlada [557]

Answer:

d = √8

d ≈ 2.82843

Step-by-step explanation:

Distance Formula: d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Simply plug in our coordinates into the distance formula:

d = \sqrt{(-3 + 5)^2+(-8 + 6)^2}

d = \sqrt{(2)^2+(-2)^2}

d = \sqrt{4+4}

d = \sqrt{8}

To find the decimal, simply evaluate the square root:

√8 = 2.82843

8 0
3 years ago
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The mean volume for a bottle of cologne is 4 ounces and the standard deviation is 0.22 ounces. A random sample of 121 bottles is
adelina 88 [10]

Answer:

The standard error of the mean is 0.02

Step-by-step explanation:

Here, we want to calculate the standard error of the mean.

Mathematically;

standard error of mean = SD/ √n

where SD is the standard deviation and n is the number of samples

From the question, SD = 0.22 and n = 121

Inserting this into the equation

Standard error of the mean = 0.22/√121

= 0.22/11 = 0.02

6 0
3 years ago
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