2 years ago

Find the value of the cosine

Mathematics

1 answer:

galina1969 [7]2 years ago

7 0

Answer:

I believe the answer is c

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Between which two numbers is Negative 1.5 located on a number line?

Ede4ka [16]

Between -2&-1 is the answer

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2 years ago

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What is the missing number in the pattern above? 12,84,588,___,28,812

lara31 [8.8K]

Answer:

4,116

Step-by-step explanation:

Multiply by 7

12x7=84

84x7=588

and 588x7=4,116

So there's your answer 4,116

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2 years ago

QUESTION 3 of 10: Stock returns vary from year to year. The more variance a stock displays the greater the potential risk. These

Dahasolnce [82]

Answer:

The variance of these investment returns is 74

Step-by-step explanation:

Given:

Series = 10, 30, 15, 5, 20

To Find:

variance of a series = ?

Solution:

The variance of the series = $Var\left(X\right)=\sum _{i=1}^n\frac{\left(x_i-\bar{x}\right)^2}{n}$

$\bar{x} = \frac{10+30 +5+15 + 20}{5}$

$\bar{x} = \frac{80}{5}$

$\bar{x} =16$

Now $(x_i -\bar{x})^2 =$ $(10 -16)^2 + (30 -16)^2 + (5 -16)^2 +(15 -16)^2 +(20 -16)^2$

= $(-6)^2 + (14)^2 + (-11)^2 + (-1)^2+ (-4)^2$

= 36 + 196 +121 + 1+ 16

= 370

Now

$Var\left(X\right)=\frac{370}{5}$ = 74

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2 years ago

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prohojiy [21]

Answer:

She will save $5.25

Step-by-step explanation:

21 x 25% = 5.25

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2 years ago

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A. -2/9 B. -1/3 C. 1/3 D. 2/9

gogolik [260]

Answer:

C. 1/3

Hope this helps!:)

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3 years ago

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