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3 years ago

First the surface area of the cube. Round to the nearest whole number and the next one after that pllzzzzz

Mathematics

1 answer:

dezoksy [38]3 years ago

7 0

To find a surface area of a cube you want to find the area of ONE side first. Since we know that the area of a square is $s^{2}$ , and we know that the side is 8.5, we can square it.

$8.5^{2}$ = 72.25

Since the area of one side is 72.25, and the number of sides in a cube is 6, we should multiply 72.25 by 6

=433.5

Your answer for the first problem should be 433.5 if I am not mistaken.

The second problem simply asks to write the fraction as a repeating decimal

17/7 = <span>2.428571428571

We can see that the decimal digits of 428571 repeats, you would put the bar over it. Good luck!</span>

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2 years ago

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3 years ago

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Could someone please help me with this? Solution set of lx^2+mx+n=0 is...?

IgorLugansk [536]

Answer:

Simplifying

lx2 + mx + n = 0

Solving

lx2 + mx + n = 0

Solving for variable 'l'.

Move all terms containing l to the left, all other terms to the right.

Add '-1mx' to each side of the equation.

lx2 + mx + -1mx + n = 0 + -1mx

Combine like terms: mx + -1mx = 0

lx2 + 0 + n = 0 + -1mx

lx2 + n = 0 + -1mx

Remove the zero:

lx2 + n = -1mx

Add '-1n' to each side of the equation.

lx2 + n + -1n = -1mx + -1n

Combine like terms: n + -1n = 0

lx2 + 0 = -1mx + -1n

lx2 = -1mx + -1n

Divide each side by 'x2'.

l = -1mx-1 + -1nx-2

Simplifying

l = -1mx-1 + -1nx-2

Step-by-step explanation:

Hope this helped you!

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3 years ago

Find the missing side length in the image below

tatuchka [14]

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3 years ago

Suppose there is a simple index of two stocks, stock A and stock B. Stock A opens on Monday with 5000 shares at $2.75 per share.

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Answer:

Step-by-step explanation:

What is the name of an investment that pools money from many investors in order to acquire a large variety of stocks, bonds, and other investments?

Mutual fund

Annuity

Derivative

closeIncorrect

done

Question 2

2 points

What is the name of the computerized system that provides price quotations for various stocks traded on the market?

NYSE

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Nasdaq

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doneCorrect

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Question 3

2 points

On a particular day, the Dow Jones had a rate of change of 2.8%. Which of the following statements must also be true?

The Nasdaq decreased.

The S&P 500 increased.

done

The average of the 30 stocks in the Dow Jones increased.

Every stock in the Dow Jones increased.

doneCorrect

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Question 4

2 points

At the beginning of the day, stock XYZ opened at $3.72. At the end of the day, it closed at $4.05. What is the rate of change of stock XYZ?

9.8%

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8.9%

4.1%

3.7%

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Question 5

2 points

What is the name of the federal agency that regulates the investment industry?

NYSE

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SEC

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Question 6

2 points

At the beginning of the day, the sum of the stocks in the Dow Jones was $10,289.57. At the end of the day, the sum of the stocks in the Dow Jones was $10,124.19. What was the rate of change of the Dow Jones on this particular day?

-1.8%

-1.0%

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-1.6%

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Question 7

2 points

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15.5%

13.4%

-15.5%

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-13.4%

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Question 8

2 points

What is the name of indicator of stock market prices that is the average of 30 selected industrial stocks?

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Question 9

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$25,800

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$25,300

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Question 10

0 points

Suppose there is a simple index of two stocks, stock A and stock B. Stock A opens on Monday with 5000 shares at $2.75 per share. Stock B opens on Monday with 3000 shares at $4.30 per share. Stock A opens on Tuesday at $3.10 per share, and stock B opens on Tuesday at $4.85 per share. Both stocks have the same number of shares that they opened with on Monday. What is the rate of change of this simple index over 1 day?

-11.3%

-12.8%

12.8%

11.3%

closeIncorrect

4 0

3 years ago

Read 2 more answers