3 years ago

Determine whether (1,10) is a solution of (x +10)^2 – (y + 1)^2 = 0

Mathematics

1 answer:

Svetach [21]3 years ago

4 0

Answer:

yes

Step-by-step explanation:

if you plug in 1 for x you get 11, and 11^2 is 121, if you plug in 10 for y, you get 11, and 11^2 is 121, so 121-121=0

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Step-by-step explanation:

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4 years ago

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Dvinal [7]

A z-score<span> is the number of standard deviations from the mean a data point is.
</span>
Standard deviation explains by how much the members of a group differ from the mean value for the group.
Using the z-score formula:
z = ( x - μ ) ÷ σ
Where;
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Step-by-step explanation:

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Last year, Jane opened an investment account with $8200. At the end of the year, the amount in the account had increased by 23.5

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