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Ivenika [448]
3 years ago
14

Find x if 8.4% of x is 420. explain with steps

Mathematics
1 answer:
lara [203]3 years ago
8 0

Answer:

x=5000

Step-by-step explanation:

\frac{84}{1000} x=420

x=420 \times \frac{1000}{84}

x=5000

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Listed below is data on profit and market capitalization for a sample of 15 different firms in U.S. Profit is the y variable and
MissTica

Answer:

Step-by-step explanation:

Hello!

You have two study variables:

Dependent variable

Y: Profit of the firm in the U.S.

Independent variable

X: Market capitalization of the firm

a.

See the scatterplot in the attachment.

Looking at the graphic it seems that there is a positive regression between the profit and the market capitalization, meaning that every time the market capitalization of the firm increases, the profit of this firm also increases. But not all the "firms" adjust linearly, so I wouldn't expect the regression to be powerful.

b.

The regression model is E(Yi)= α + βXi

Where the parameters of the model are α and β, these two parameters are to be estimated to estimate the regression equation. The estimator for α is a and the estimator for β is b:

a= Y[bar] - bX[bar]

b= [∑XY-(∑X*∑Y)/n]/[∑X²-(∑X)²/n]

I'll use a statistic software to calculate the estimated regression equation:

^Yi= a + bXi

^Yi= 325.89 + 0.07Xi

c.

You need to predict the value of Y (Profit) given a value of X= 70721.3 (million). To make this prediction you have to use the estimated equation:

^Yi= 325.89 + 0.07Xi

^Yi= 325.89 + 0.07(70721.3)= 5276.381

The predicted profit for a market capitalization value of 70,721.3 is 5276.381 million.

I hope this helps!

6 0
3 years ago
I do not understand this , please help!
puteri [66]
I don’t either djejsjnenekskekwnsjwjwjsnnensjskejsnnsnwjwjsnwnwnsbw
7 0
3 years ago
What is the value of the following expression when <br>y = 4? <br>y³ + 6​
SpyIntel [72]

Answer:

70

Step-by-step explanation:

y^3 +6

Let y=4

4^3 +6

64+6

70

4 0
3 years ago
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When the sugar bowl is full it’s weight 750 g how many tablespoons of sugar can the bowl hold
grandymaker [24]

Answer:

50 tbsp

Step-by-step explanation:

3 0
2 years ago
Question 1
Elza [17]

Answer:

29

Step-by-step explanation:

8 0
3 years ago
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