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aalyn [17]
3 years ago
7

Your school's football team scored 49 points. Your teams score was 19 points more than the opponents score s. Write and solve an

equation to find the opponents score
Mathematics
1 answer:
charle [14.2K]3 years ago
5 0
X is your teams score

Y is your opponents score
X-19= Y
X+Y= 49
X=34
34-19= 15
Y=15
34+15= 49
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Depth: 1.8 m Width: 2.5 m Height: 2 m What is the cuboid's volume?
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Answer:

9 m³

Step-by-step explanation:

The formula for calculating the volume (V) of a cuboid is

V = depth × width × height

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2 years ago
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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
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Answer:

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3 years ago
What is 70x + 56y = 56,000 into Slope-Intercept Form?
MAVERICK [17]

Answer:

i belive that the awnser is y=-1.25x+1000

Step-by-step explanation: you want to get y by itself so you would subtract x from both sides leaving you with

56y=-70x+56,000

then you would devide both sides by 56 leaving you with

y=-1.25x+1000

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2 years ago
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