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1 year ago

I need an answer for this:

Mathematics

2 answers:

Tamiku [17]1 year ago

7 0

Answer:

here we go

Step-by-step explanation:

Stirring a cup of hot tea causes a metal spoon to get warm. Which statement best explains why the spoon gets warm? Heat energy transfers from the hot tea to the spoon.

Alex_Xolod [135]1 year ago

4 0

Answer:

<h3>The molecules at the end of the spoon, in turn, collide with the molecules in the adjacent, cooler part, passing the kinetic energy on. This continues through the spoon until the handle molecules are also heated.</h3>

Step-by-step explanation:

<h3>Stay safe, stay healthy and blessed.</h3><h3>Have a good day !</h3><h3>Thank you</h3>

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Sammi bought 2dozen valentines. How many valentines did sammi have left after giving 7/8 of them to her classmates

Ierofanga [76]

Dozen = 12

2 dozen

2x12=24

7/8 of 24

24 / 8 = 3
3 x 7 = 21
24- 21= 3

3 roses are left over

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2 years ago

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Eduardwww [97]

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2 years ago

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seraphim [82]

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2 years ago

Since the Boston marathon began in 1897, the finish time has been incrementally decreasing. The mean finish time to date is 231

morpeh [17]

Answer:

hello your question lacks the required options but i will provide a general answer to your question

answer : The mean value and the standard deviation would allow us use a Z-score

Step-by-step explanation:

mean value = 231 minutes

standard deviation ( std ) = 40 minutes

sample size = 40

The parameters that would be applicable while use Z-score are : The given mean value and the standard deviation

This is because the value of a z-score gives us an information on how far we are from the mean score i.e. number of standard deviations

+Zscore means that the score is above the average value

-Zscore means that the score is below the average value

7 0

2 years ago

−<br> 3<br> (<br> 7<br> −<br> 2<br> x<br> )<br> =<br> −<br> 1<br> −<br> 4<br> x

Bogdan [553]

Answer:

5208

Step-by-step explanation:

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1 year ago