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3 years ago

Name a point that is located in quadrant three on a coordinate plane

Mathematics

2 answers:

mamaluj [8]3 years ago

4 0

(-4,-2) It is the bottom left side of a coordinate plane.

olya-2409 [2.1K]3 years ago

4 0

Hey there!

To start, the quadrants on a coordinate plane are numbered in counterclockwise order starting from the upper right-hand quadrant.

The upper right-hand quadrant is the quadrant that is know is quadrant one. In this quadrant, the x values are positive, and y values are positive, otherwise known as (+x,+y).

The upper left-hand quadrant is quadrant two. The x values in this quadrant are negative, however the y values remain positive: (-x, +y)

The bottom left-hand quadrant is quadrant three. The x and y values in this quadrant are negative: (-x,-y).

Finally, the bottom right-hand quadrant is quadrant four, The x values are positive in this square and the y values are negative: (x, -y).

Knowing that quadrant three has a negative x and y value, points that would be located in this quadrant would be points like (-1, -1), (-3, -5), (-100, -90), etc. Therefore, your answer should be any point in the (-x, -y) format.

Hope this helps, and have a wonderful day! :)

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Every third visitor to a museum gets a free bumper sticker. Every fifth visitor to that museum gets a free key chain. Which visi

poizon [28]

Answer:

The 15th visitor

Step-by-step explanation:

You have to find the LCM of the two numbers given by multiplying the chances that a visitor gets either a bumper sticker or a key chain.

1/3 x 1/5 = 1/15.

This means that every 15 people that visit the museum get both the bumper sticker and the key chain but since 15 is the lowest positive multiple of itself, the 15th visitor to the museum every day will be the first to get both items.

4 0

3 years ago

A manager records the repair cost for 4 randomly selected TVs. A sample mean of $88.46 and standard deviation of $17.20 are subs

WINSTONCH [101]

Answer:

a) The critical value is $z = 2.575$ .

b) The 99% confidence interval for the mean repair cost for the TVs is ($66.31, $110.61).

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.99}{2} = 0.005$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ . This is our critical value

So it is z with a pvalue of $1-0.005 = 0.995$ , so $z = 2.575$

a. Find the critical value that should be used in constructing the confidence interval.

The critical value is $z = 2.575$ .

b. Construct the 99% confidence interval. Round your answer to two decimal places.

Now, find M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample. So, in this problem

$M = 2.575*\frac{17.20}{\sqrt{4}} = 22.15$

The lower end of the interval is the mean subtracted by M. So it is 88.46 - 22.15 = $66.31

The upper end of the interval is the mean added to M. So it is 88.46 - 22.15 = $110.61

The 99% confidence interval for the mean repair cost for the TVs is ($66.31, $110.61).

5 0

3 years ago

Kinu has 7 memory sticks that contain data from his computer. Some of the me

ra1l [238]

Solving the system of equations, it is found that x = 3, that is, there are 3 128 MB memory sticks.

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We want to solve for x, thus, in the first equation, we write y as a function of x, that is:

$y = 7 - x$

Replacing in the second equation:

$128x + 512(7 - x) = 2432$

$128x + 3584 - 512x = 2432$

$384x = 1152$

$x = \frac{1152}{384}$

$x = 3$

x = 3, that is, there are 3 128 MB memory sticks.

A similar problem is given at brainly.com/question/24823220

6 0

2 years ago

Evaluate :5/63-(-6/21)

Mashcka [7]

Answer:

answer is $\frac{23}{63}$

Step-by-step explanation:

the equation is

$\frac{5}{63}-(-\frac{6}{21} )$

=> $\frac{5}{63}+\frac{6}{21}$

=> $\frac{5}{63}+\frac{2}{7}$ ;(divide numerator and denominator of $\frac{6}{21}$ by 3)

=> $\frac{5+2*9}{63}$

=> $\frac{23}{63}$

hope you have understood this

pls mark it as the brainliest

3 0

3 years ago

if maruanne father calls and says he needs 13 pounds of potting soil, how many additional bags should she buy?

olya-2409 [2.1K]

2 bags. She needs to buy 2 bags of 10 pounds of potting soil.

20-13=7

2 more bags will give Marunne's father all the soil he needs and 7 pounds left over.

5 0

4 years ago