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Kruka [31]
3 years ago
10

Solve using the Quadratic Formula: 3x2 + 3x - 6 - 0 -2, 1 1, 2 -3, 9 -3, -9

Mathematics
1 answer:
AysviL [449]3 years ago
6 0
Assuming that the equation is 3x^2+3x-6=0, then use the quadratic equation, (-b+- sqrt(b^2-4ac))/2a, with ax^2+bx+c as the original equation. so here we get (-3+-sqrt(9+72))/6 = (-3+-sqrt(81))/6 = (-3+-9)/6, = (-1+-3)/2 = 1 or -2. Plug in original to check.
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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.
Yanka [14]

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?

A.

Mutual fund

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B.

Annuity

C.

Derivative

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done

Question 2

2 points

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

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NYSE

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B.

Nasdaq

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Dow Jones

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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?

A.

The Nasdaq decreased.

B.

The S&P 500 increased.

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C.

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

D.

Every stock in the Dow Jones increased.

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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?

A.

9.8%

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B.

8.9%

C.

4.1%

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3.7%

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Question 5

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

A.

NYSE

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SEC

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S&P 500

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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?

A.

-1.8%

B.

-1.0%

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C.

-1.6%

D.

-1.2%

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Question 7

2 points

Suppose there is a simple index of three stocks, stock ABC, stock XYZ, and stock QRS. Stock ABC opens on day 1 with 5000 shares at $3.25 per share. Stock XYZ opens on day 1 with 500 shares at $8.25 per share. Stock QRS opens on day 1 with 10,000 shares at $4.75 per share. The price of stock ABC on day 8 begins at $2.80. The price of stock XYZ on day 8 begins at $7.50. Stock QRS opens on day 8 with a price of $4.10 per share. Assume that each stock has the same number of shares that it opened with on day 1. What is the rate of change of this simple index over 1 week?

A.

15.5%

B.

13.4%

C.

-15.5%

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D.

-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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A.

Dow Jones

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SEC

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S&P 500

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Question 9

2 points

Suppose there is a simple index of three stocks, stock X, stock Y, and stock Z. Stock X opens the day with 2000 shares at $3.80 per share. Stock Y opens the day with 1000 shares at $3.50 per share. Stock Z opens the day with 3000 shares at $4.30 per share. This simple index rises 5.4% over the course of the day. What is the value of the index at the end of the day? Round your answer to the nearest hundred.

A.

$25,800

B.

$24,600

done

C.

$25,300

D.

$24,000

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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?

A.

-11.3%

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B.

-12.8%

C.

12.8%

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11.3%

closeIncorrect

4 0
2 years ago
Read 2 more answers
Someone please help me with my homework
spin [16.1K]
Answer: 
20700 feet per hour

Explanation: 
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3 0
3 years ago
Vita has a pice of rope that is 5 meters long. She cuts the rope into pieces that are each 1/3 meter long. How many pieces does
sp2606 [1]
Normally you would divide something like this by the cuts made. So if there were cuts of 2 inches on a 10 inch rope, then you should divide 10 by 2. It's the same with this:
5/ \frac{1}{3} = 5*3, 15 \ pieces
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4 0
3 years ago
Is a function y = 4x + 13
tankabanditka [31]

Answer:

Yes

Step-by-step explanation:

7 0
3 years ago
Please explain your answer as well. THX!!
telo118 [61]

Answer:

The correct option is the first one.

Step-by-step explanation:

We know that 14 men and 24 women applied for a job. So a total of 38 persons applied for that job.

But there are 4 ways a man can be chosen. It can be the first person chosen, the second, the third of the fourth one.

So we know that the number of ways that four people can be selected out of 38 people is  38C4=73,815.

Also the number of ways 3 woman can be selected is 14*24C3 =14*2024 = 28,336.

Then, the probability of randomly selecting a group with 3 women is 28,336/73,815=0.3838

The correct option is the first one.

8 0
3 years ago
Read 2 more answers
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