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Answer:
True
Step-by-step explanation:
1) Multiply the numbers
12 · 7 = 3 · 28
84 = 3 · 28
2) Multiply the numbers
84 = 3 · 28
84 = 84
Therefore, the equation is true.
Answer:
<u><em>50cm</em></u>
Step-by-step explanation:
Area of a square = side * side, which can also be written as
x * x = 2500
= 2500
x =
x = 50cm
This can be checked as well.
50 * 50 = 2500.
Hence, proved.
<em>Hope this helps.</em>
Approximately 95% of any normal distribution lies within two standard deviations of the mean, i.e.
. Because the distribution is symmetric, you have
, so
.