3 years ago

What type of charge does a proton in an atom hold

1 answer:

5 0

Proton—positive; electron—negative; neutron—no charge. The charge on the proton and electron are exactly the same size but opposite. The same number of protons and electrons exactly cancel one another in a neutral atom.

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Refer to the variable on the number of miles driven. the mean is 830.11 and the standard deviation is 42.19 miles. estimate the

Alex787 [66]

The proportion of buses traveling more than 900 miles would be 0.0485; multiply this by the total number of buses and you will have your answer.

We find the z-score associated with 900 miles:

z = (X - μ)/σ = (900-830.11)/42.19 = 1.66

Using a z-table (http://www.z-table.com) we see that the area under the curve to the left of this, less than this, is 0.9515. This means that the area under the curve to the right of this, greater than this, would be 1-0.9515 = 0.0485.

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2 years ago

If you skip 2 hundreds from 419, what number will you land on?

defon

I think what's your trying to say is 419-200? If so it's 219

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3 years ago

Read 2 more answers

What is the value of the function y=3x−1 when x=−1 ? −8 −4 2 6

Paraphin [41]

Substitute x for -1 in y=3x-1
y = (3) (-1) -1
Solve
y = (3) (-1) -1
y = -3 - 1
y = -4

B.) -4 is your answer

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