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2 years ago

Help finding the area

Mathematics

2 answers:

kifflom [539]2 years ago

5 0

Answer:

Length x width

Step-by-step explanation:

Multiply

garri49 [273]2 years ago

4 0

Answer:

148.5 units^2

Step-by-step explanation:

First, find the area of the entire rectangle. The area is 180 because we have to multiply 15*12.

Next, find the area of the triangle. The area is 31.5 because we have to figure out 1/2(7*9)

Finally, you subtract 31.5 from 180.

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Help me find Sample variance and standard deviation

AnnZ [28]

First, find the mean. You'll need it to compute the variance.

$\bar x=\displaystyle\frac15\sum_{i=1}^5x_i=\dfrac{21+10+6+7+11}5=11$

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3 years ago

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Step-by-step explanation:

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