3 years ago

Can someone please help me arrange this in order.

Mathematics

1 answer:

Nesterboy [21]3 years ago

7 0

Is this ELA because if it is i am horrible at it

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Garrett is 3 years older than Rachael. In 2 years the sum of their ages will be 39. How old is Garrett now?

ziro4ka [17]

Let garret’s age be x

x + 2 + (x + 3) + 2 = 39
2x + 7 = 39
2x = 32
x = 32/2
x = 16

Garrett’s age after two years = 16 + 2 = 18

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3 years ago

HELP QUICK!!!

lys-0071 [83]

The answer is the height of 17 and base is 12 of this helps mark as brainliest

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2 years ago

I need to know<br> give 20 points to who answers this right.

NISA [10]

Step-by-step explanation:

I believe it's 16 1/2. I just used MathPapa lol.

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2 years ago

What is the slope of (-1,2) and (0,-4)

Serga [27]

Answer:

- 6

Step-by-step explanation:

$slope = \frac{ - 4 - 2}{0 - ( - 1)} = \frac{ - 6}{0 + 1} = \frac{ - 6}{ 1} = - 6 \\$

3 0

3 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

6 0

3 years ago

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