3 years ago

Please help!! Brainliest and Poitns!!

Mathematics

2 answers:

jekas [21]3 years ago

7 0

Answer:

The answer is C

Step-by-step explanation:

You have to isolate the variable by dividing each side by factors that don't contain the variable.

Hope it helps.

Inga [223]3 years ago

6 0

Answer:

its c

Step-by-step explanation:

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3 years ago

Please help answer and explanation im very confused.

Veseljchak [2.6K]

Answer:

1) 18m²

2) 25cm²

Step-by-step explanation:

a = ½ × b × h
a = ½ × 9 × 4
a = ½ × 36
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2 years ago

Please help me compute standard deviation! Here is the problem, as written.

aleksandr82 [10.1K]

Answer:

The standard deviation for the income of super shoppers is 76.12.

Step-by-step explanation:

The formula to compute the standard deviation for the grouped data probability distribution is:

$\sigma=\sqrt{\sum [(x-\mu)^{2}\cdot P(x)]}$

Here,

<em>x</em> = midpoints

$\mu=\sum x\cdot P(x)$

Consider the Excel table attached below.

The mean is:

$\mu=\sum x\cdot P(x)=32.3$

Compute the standard deviation as follows:

$\sigma=\sqrt{\sum [(x-\mu)^{2}\cdot P(x)]}$

$=\sqrt{259.71}\\\\=76.1155204\\\\\approx 76.12$

Thus, the standard deviation for the income of super shoppers is 76.12.

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3 years ago

Geometry Question, Thanks if you help!

Neko [114]

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Step-by-step explanation:

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3 years ago

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3 years ago

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