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2 years ago

Please help with 16 & 17

Mathematics

1 answer:

son4ous [18]2 years ago

5 0

Answer:

16. Parallelogram

17. x=3, y=9

Step-by-step explanation:

16. You should graph it to get a visual. But using the given points, you can tell that the slopes for the lines AC and BD are the same, thus meaning those lines are parallel. The same for lines AD and BC.

17. 5x+2=17, so x= 3

3y-6=21, so y=9

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-3x+4>-23 what is the answer I need help

Dmitrij [34]

X<9
The answer is x<9 because you first subtract 4 from both sides then divide both sides by -3. Which then would give you 9.

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3 years ago

Which of the following expressions are equivalent to the expression below?

photoshop1234 [79]

A: 2-3x

First distribute 8-3(x+2) to get
8-3x-6.

Combine like terms to simplify the equation: 8-6=2

And now the answer is 2-3x

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2 years ago

g If the economy improves, a certain stock stock will have a return of 23.4 percent. If the economy declines, the stock will hav

dusya [7]

Answer:

$E(X) = 23.4* 0.67 -11.9*0.33= 11.759 \%$

Now we can find the second central moment with this formula:

$E(X^2) = \sum_{i=1}^n X^2_i P(X_i)$

And replacing we got:

$E(X^2) = (23.4)^2* 0.67 +(-11.9)^2*0.33= 413.5965$

And the variance is given by:

$Var(X) = E(X^2) - [E(X)]^2$

And replacing we got:

$Var(X) = 413.5965 -(11.759)^2 =275.5105$

And finally the deviation would be:

$Sd(X) = \sqrt{275.5105}= 16.599 \%$

Step-by-step explanation:

We can define the random variable of interest X as the return from a stock and we know the following conditions:

$X_1 = 23.4 , P(X_1) =0.67$ represent the result if the economy improves

$X_2 = -11.9 , P(X_1) =0.33$ represent the result if we have a recession

We want to find the standard deviation for the returns on the stock. We need to begin finding the mean with this formula:

$E(X) = \sum_{i=1}^n X_i P(X_i)$

And replacing the data given we got:

$E(X) = 23.4* 0.67 -11.9*0.33= 11.759 \%$

Now we can find the second central moment with this formula:

$E(X^2) = \sum_{i=1}^n X^2_i P(X_i)$

And replacing we got:

$E(X^2) = (23.4)^2* 0.67 +(-11.9)^2*0.33= 413.5965$

And the variance is given by:

$Var(X) = E(X^2) - [E(X)]^2$

And replacing we got:

$Var(X) = 413.5965 -(11.759)^2 =275.5105$

And finally the deviation would be:

$Sd(X) = \sqrt{275.5105}= 16.599 \%$

7 0

2 years ago

Pls help! Which multiplication problem is represented by the model?

Alinara [238K]

Answer:

1/2 x 4/5

Step-by-step explanation:

Step 1. Multiply the numerators:

1/12 × 4/5 = 4 x 1 = 4

Step 2. Multiply the denominators:

5 x 12 = 60

Step 3. Simplify the fraction:

4/60 = 1/15

Please mark as brainliest

Have a great day, be safe and healthy

Thank u

4 0

3 years ago

PLEASSEE HELP ME. this wasnt showing up on asking questions. will mark brainliest

Elis [28]

SOH CAH TOA

sin(P) = opp./hyp. = 5/13

tan(T) = opp./adj. = 12/5

cos(T) = adj./hyp. = 5/13

8 0

2 years ago