MATHEMATICS HIGH SCHOOL

Here is a list of numbers.12
15
14
17
22
19
13

Bridgit says,
“To work out the median you find the middle number,
so the median of these numbers is 17"
Bridgit's answer is not correct.

(A) What is wrong with Bridgit's method?

(B) Work out the range of the numbers in the list.

(C) Work out the mean of the numbers in the list.

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

12 13 14 15 17 19 22

you need to arrange the numbers in order from the smallest value to the largest

Related Questions

Solve the equation for x: 2(8x – 16) = 48
The times it took for 35 loggerhead sea turtle eggs to hatch in a simple random sample are normally distributed, with a mean of 50 days and a standard deviation of 2 days. Assuming a 95% confidence level, what is the margin of error for the population mean? A) 0.06. B) 0.11. C) 0.34. D) 0.66
Which mathematical term cannot be precisely defined?
What is the fractional equivalent of 0.2666
Daniel wants to have a 90 average in his math class at the end of the year. He is trying to determine what he needs to get on his final exam, which accounts for 10% of his grade, for this to work. Tests are weighted 50% of the grade, and he currently has a 85 for his test average; quizzes are weighted 15% of his grade, and he currently has a 95 quiz average; homework is weighted 15% of his grade and he currently has a 98 homework average; and projects are weighted 10% of his grade and he currently has a 92 project average. What is the lowest whole percentage Daniel can make on his final exam for him to end up with a 90 in the class?

state whether the lines represented by the equations y=1/2x-1 and y+4=-1/2(x-2) are paraller, perdendicular, or neither

Answers

The lines represented by the equations y=1/2x-1 and y+4=-1/2(x-2) are neither parallel nor perpendicular.

What is an equation?

An equation is slope-interceptthat shows the relationship between two or more numbers and variables.

The first equation y=1/2x-1 is already in the slope intercept form. The slope is, 1/2, and the y-intercept is -1.

The second equation y+4=-1/2(x-2)

From this equation, the slope is -1/2 and the y-ina tercept is -3.

When two lines ara e parallel, they have the same slope. one has slope of 1/2 and the other has slope of -1/2 thus these are not the same our lines are not parallel.

When lines are perpendicular, the slope of one is the negative reciprocal of the other which is not satisfied in the given equations.

Thus, we conclude that the lines represented by the equations y=1/2x-1 and y+4=-1/2(x-2) are neither parallel nor perpendicular.

Learn more about equations here;

brainly.com/question/25180086

#SPJ2

The easiest way to tell whether lines are parallel, perpendicular, or neither is when they are written in slope-intercept form or y = mx + b. We will begin by putting both of our equations into this format.

The first equation, $y = (1)/(2)x - 1$ is already in slope intercept form. The slope is 1/2 and the y-intercept is -1.

The second equation requires rearranging.
$y + 4 = -(1)/(2)(x - 2) \n y + 4 = -(1)/(2)x + 1 \n y = - (1)/(2) x- 3$
From this equation, we can see that the slope is -1/2 and the y-intercept is -3.

When lines are parallel, they have the same slope. This is not the case with these lines because one has slope of 1/2 and the other has slope of -1/2. Since these are not the same our lines are not parallel.

When lines are perpendicular, the slope of one is the negative reciprocal of the other. That is, if one had slope 2, the other would have slope -1/2. This also is not the case in this problem.

Thus, we conclude that the lines are neither parallel nor perpendicular.

Which of the following represents the measure of all angles coterminal with 418° angle?

Answers

The correct answer is:

58+360n, for any integer n.

Explanation:

412° is more than 360°, which is a full circle. To find the smallest angle that is coterminal with 412°, we subtract 360° from it:
412-360 = 58°

This means that 58° is the smallest coterminal angle with 412°.

Every whole circle added on to this will also be coterminal with it. Again, a whole circle is 360°; this means that every 360° increment that is added to 58° will be coterminal with it.

To represent multiples of 360, we write 360n. Adding this to our original angle, we have 58+360n.

This works for positive and negative numbers; for example, if you use n = -1:

58+360(-1) = 58-360 = -302

Graphing this angle, we would go counterclockwise from the positive x-axis; we would land at 58°, so it would still be coterminal with 412°.

418° is the same angle as 360° + 58° .

And then, if you add any whole number of 360s onto it,
you get the same angle again.

So it's 58+360n with n=any whole number
(n=0 doesn't work, so it's not 'integer'. '0' is an integer.)

What is the volume of a sphere with a diameter of 11ft? Round your answer to the nearest cubic foot. 2786 cubic feet 5572 cubic feet 8359 cubic feet 6193 cubic feet

Answers

Answer:

The volume of the sphere is $697\ ft^(3)$

Step-by-step explanation:

we know that

The volume of the sphere is equal to

$V=(4)/(3)\pi r^(3)$

we have

$r=11/2=5.5\ ft$ -----> the radius is half the diameter

assume

$}\pi=3.14$

substitute

$V=(4)/(3)(3.14)(5.5)^(3)=697\ ft^(3)$

Glenn has 450 stamps that are red blue green. 52% are red. He has 3/5 as many green as blue stamps. How many are blue and how many are green.

Answers

Since it is already stated that 52% of the 450 stamps are red (which is 234), the remaining 216 stamps are composed of blue and green stamps only. From there, we can write the equation:

216 = b + g
where: b = blue stamps; g = green stamps

Applying the relation that the green stamps are 3/5 as much as the blue stamps, we can say that g = 3/5 b

Substituting the relation to the equation:
216 = b + 3/5 b
216 = 8/5 b

Dividing both sides by 8/5:
216/ (8/5) = 8/5 b / (8/5)
b = 135.

Going back to the equation and substituting the value of b:
216 = b + g
216 = 135 + g

Subtracting 135 from both sides to get g:
216 - 135 = 135 - 135 + g
g = 81

Therefore, there are 135 blue stamps and 81 green stamps.

Question 12
What is the length of a segment with endpoints at (-3, 4) and (4, 4)?

Answers

Answer:

7 units. count from -3 to 4 on a number line

Step-by-step explanation:

Answer:(4,5)

Step-by-step explanation:

A dart hits the small circular target shown below at a random point. Find the probability that the dart lands in the shaded circular region. The radius of the target is 8 cm, and the radius of the shaded region is 3 cm.Use the value 3.14 for π. Round your answer to the nearest hundredth.

Answers

Answer: The probability is P = 0.14

Step-by-step explanation:

We know that the dart will land on the larger circle, then we have a 100% of probability that the dart will land on the larger circle.

Then the probability of the dart landing on the smaller circle will be equal to the quotient between the areas of the smaller circle and the larger circle.

The area of a circle of radius R is:

A = 3.14*R^2

Then the area of the larger circle is:

A = 3.14*(8cm)^2 = 200.96 cm^2

And the area of the smallest circle is:

a = 3.14*(3cm)^2 = 28.26 cm^2

Then the probability of the dart landing on the shaded region is:

P = (28.26 cm^2)/(200.96 cm^2) = 0.14

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You drop a ball from a height of 1.5 meters. Each curved path has 71% of the height is the previous path. a. write a rule for the sequence using centimeters. The initial height is given by term n=1 b. what height will the ball be at the top of the sixth path

There are 92 coins split into 21 piles. Each pile has the same number of coins and as many coinsas possible. How many coins are in each pile?