Step right up for a prize brainiest if you get right
A librarian surveys college libraries to find out how many hours each library stays open on the weekends.
​15,15,8,12,12,14,14,16,8,17,18,15,12,10
​The number of hours is noted in the order that the librarian calls each.

​​Find the median of hours open
A.12
B.14
C.14.5
D.15

Answers

Answer 1

Answer:

I think its B

Step-by-step explanation:

Answer 2

Answer: B)14 hours open

(14+14)/2 =14

Step-by-step explanation:

15,15,8,12,12,14,14,16,8,17,18,15,12,

8,8,12,12,12,14,14,15,15,16,17,18

(14+14)/2 =14


Related Questions

Melissa weighed 14 packages. Their mean weight was 3 pounds. What was the total weight of the 14 packages?
pounds

Answers

The total weight of the 14 packages that Melissa weighed is gotten as; Total weight = 42 pounds

How to calculate mean?

We are given;

Mean weight = 3

Now,formula for mean is;

Mean = total/sample size

We are given;

Sample size = 14

Thus;

3 = total/14

Total = 3 * 14

Total weight = 42 pounds

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state the slope of the line perpendicular to the line -2x+5y=12

Answers

Answer:

- 5/2

Step-by-step explanation:

Arrange this line equation into y = mx + b form   m = slope

 y = 2/5x + 12/5    

  then perpindicular line = - 1/m   = - 1/ (2/5) = - 5/2

If one turn consists of spinning each spinner once, which table shows all the possible outcomes for one turn?

Answers

Answer:

i think it's c

Step-by-step explanation:

sorry if I'm wrong

Find the probability that x > 5

Answers

Answer:

The probability of x ≥ 5 is

.05

Step-by-step explanation:

Have a great day✧◝(⁰▿⁰)◜✧

A group of friends were working on a student film that had a budget of $1500. They
used $780 of their budget on costumes. What percentage of their total budget did
they spend on costumes?

Answers

Answer: 52 %

Step-by-step explanation: 780/1500 × 1100/1

The percentage is calculated by dividing the required value by the total value and multiplying by 100.

Required percentage value = a

total value = b

Percentage = a/b x 100

780/1500 x 100 = 52%

The percentage of the amount spent on customs is 52%

What is a percentage?

The percentage is calculated by dividing the required value by the total value and multiplying by 100.

Example:

Required percentage value = a

total value = b

Percentage = a/b x 100

Example:

50% = 50/100 = 1/2

25% = 25/100 = 1/4

20% = 20/100 = 1/5

10% = 10/100 = 1/10

We have,

Total budget = $1500

Amount spend on costumes = $780

The percentage of the amount spend on customs.

= 780/1500 x 100

= 52%

Thus,

The percentage of the amount spent on customs is 52%

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Which function has the greatest maximum y-value?
A) f(x)
B) g(x)
C) h(x)
D) AIl three functions have the same maximum y-value.

Answers

Answer:

g(x)

Step-by-step explanation:

y-intersect for h(x) is -11 as shown in the table, where the x value is 0

y-intersect for f(x) you find out by subbing 0 in the place of x and get the y intersect value of 2.99

y-intersect of g(x) is 3 as shown in the drawing

as seen across the three y-intersects, the value of g(x) y-intesect is the greatest


Hugo received $100 dollars for
birthday which he uses to make an initial deposit in
a saving account. He gets an allowance of $20 per week which he deposits in his savin
account. Write an equation to represent the balance of his saving account over time.
Which amount represents the slope?
Which amount represents the y-intercept?
The equation would be written as:
y=
vx+
The x in this equation represents:
The y in this equation represents

Answers

Answer:

i believe its 100*20x

Step-by-step explanation:

please no h8 i tried

Collect like terms
3
x
2
+
x
+
2
x
2

Answers

Answer:

x+10

Step-by-step explanation:

Paloma eats 2 /8 of an apple in the morning and 3/ 8 more in the afternoon. How much of the apple did she eat in total?

Answers

Answer:

5/8

Step-by-step explanation:

2/8 + 3/8 is 5/8

Answer:

5/8

Step-by-step explanation:

With like denominators we can operate on just the numerators:

[tex]\frac{2+3}{9}[/tex]

=[tex]\frac{5}{8}[/tex]

100 POINTS AND BRAINLIEST TO WHOEVER SOLVES IT
The edge length, s, of a regular tetrahedron is approximately given by , where V is the volume of the terahedron. Use a graphing calculator to graph the function. Estimate the volume of a regular tetrhedron with an edge length of 4 inches.

Answers

Volume of a tetrahedron with edge s

[tex]\\ \rm\Rrightarrow V=\dfrac{s^3}{6\sqrt{2}}[/tex]

According to question

s=4in

[tex]\\ \rm\Rrightarrow V=\dfrac{4^3}{6\sqrt{2}}[/tex]

[tex]\\ \rm\Rrightarrow V=\dfrac{64}{6\sqrt{2}}[/tex]

[tex]\\ \rm\Rrightarrow V=\dfrac{32}{3\sqrt{2}}[/tex]

[tex]\\ \rm\Rrightarrow V=\dfrac{32}{4.2426406871192}[/tex]

[tex]\\ \rm\Rrightarrow V\approx 7.5425in^3[/tex]

Answer:

See below ~

Step-by-step explanation:

Volume of a tetrahedon

V = s³ / 6√2s = edge length

Solving for V

V = (4)³ / 6√2V = 64 / 6√2V = 32 / 3√2V = 32√2 / 6V = 16√2 / 3V = 7.54 cubic inches

Graph

The table below represents the metric volume measure of a liter with each amount represented as a power of 10. a 2-column table with 5 rows. column 1 is labeled unit with entries centiliter, liter, hectoliter, kiloliter, megaliter. column 2 is labeled power of 10 with entries 10 superscript negative 2, 10 superscript 0, 10 squared, 10 cubed, 10 superscript 6. the work shows that a megaliter is 10,000 times larger than a hectoliter. 106 102 = 104 = 10,000 the of the original exponent is the exponent in the power of quotient. the kiloliter is 103 times greater than a . the hectoliter is times greater than centiliter.

Answers

A megaliter is 10,000 times larger than a hectoliter.

The kiloliter is 10^3 times greater than a liter while the hectoliter is 10^4 times greater than the centiliter.

What is an equation?

An equation is an expression that shows the relationship between two or more variables.

1 mega liter = 10^6 Liter

1 hectoliter = 10^2 Liter.

Hence, a megaliter is 10,000 (10^6/10^2) times larger than a hectoliter

The kiloliter is 10^3 times greater than a liter while the hectoliter is 10^4 times greater than the centiliter.

Uncle Reynald's age is given by the expression 3(12 + 5) - 4.

To learn more about the equation visit:

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Answer:

the first one is diffrence

2nd one is liter

3rd one 10,000

Step-by-step explanation:

Are my answer correct? If not explain why.

Answers

Answer:

Step-by-step explanation:

a)

First I will calculate the equation of the line that goes trough the points

C (0, 0) and (-4, 3).

y= mx + b

y = [(3-0)/ (-4 -0) ] x + 0

y = (-3/4)x  →the slope of tis line is (-3/4)

The slope of line l is the negative reciprocal of (-3/4) the slop of line that goes trough points C (0, 0) and (-4, 3) because the lines are ⊥.  

Slope of line l is 4/3

b)

The equation of l is

y= (4/3)x + b

for point (x= -4, y = 3) that belongs to the line l, we have

3 = (4/3) (-4) + b

3 = (-16/3) + b

3 + (16/3) = b

(9+16)/3 = b

25/3 = b

The equation of the line l in slope intercept form is :

y = (4/3)x + (25/3)

c)

The radius of circle C is the distance between C (0, 0) and (-4, 3).

d² = (x2-x1)² +(y2-y2)²

d = √(-4-0)² +(3-0)²

d = √16+ 9

d = 5 → the radius of the circle C is 5

d)

Line l intersects the y-axis at (25/3) as we previously found out.

The radius is 5.

...therefore the distance between the line l's y-intercept and the circumference of the circle is

(25/3 ) - 5  = (25 - 5·3)/3 = 10/3

1/7 divided by 3
Is it 1/3 or 1/2 im so confuse

Answers

given:

[tex] \frac{1}{7} \div 3[/tex]

solution:

[tex] \frac{1}{7} \div \frac{3}{1} [/tex]

[tex] \frac{1 \times 1}{7 \times 3} [/tex]

[tex] = \frac{1}{21} [/tex]

solve for x - 10 = x-7/3

Answers

Answer:

no solution

Step-by-step explanation:

x - 10 = x - 7/3

cancel the terms on both sides

-10 = -7/3

statement is false

no solution

50 POINTS PLS HELP


The graph shows the quadratic function f(x).


What is the average rate of change for the quadratic function from x = 10 to x = 12?
I will give brainliest, and I need help fast.

Answers

Answer:

3

Step-by-step explanation:

find value at  12 =12

find value at 10 =    6

 so it changes   + 6    for a change from 10 to 12

6/2 = 3  

Let (20, 48) be a point on the terminal side of an angle ϴ in standard position. Evaluate the six trigonometric functions of ϴ .

Answers

The six trigonometric functions related to (x, y) = (20, 48): sin θ = 12/13, cos θ = 5/13, tan θ = 12/5, cot θ = 5/12, sec θ = 13/5, csc θ = 13/12.

How to determine the six trigonometric functions from coordinates in rectangular form

Given the coordinates in rectangular form, that is, (x, y), where each component belongs to an orthogonal axis of reference. By trigonometry we have six functions to be calculated:

[tex]\sin \theta = \frac{y}{\sqrt{x^{2}+y^{2}}}[/tex]     (1)

[tex]\cos \theta = \frac{x}{\sqrt{x^{2}+y^{2}}}[/tex]     (2)

[tex]\tan \theta = \frac{\sin \theta}{\cos \theta}[/tex]     (3)

[tex]\cot \theta = \frac{1}{\tan \theta}[/tex]     (4)

[tex]\sec \theta = \frac{1}{\cos \theta}[/tex]     (5)

[tex]\csc \theta = \frac{1}{\sin \theta}[/tex]     (6)

If we know that x = 20 and y = 48, then the six trigonometric functions are, respectively:

[tex]\sin \theta = \frac{48}{\sqrt{20^{2}+48^{2}}}[/tex]

[tex]\sin \theta = \frac{12}{13}[/tex]

[tex]\cos \theta = \frac{20}{\sqrt{20^{2}+48^{2}}}[/tex]

[tex]\cos \theta = \frac{5}{13}[/tex]

[tex]\tan \theta = \frac{12}{5}[/tex]

[tex]\cot \theta = \frac{5}{12}[/tex]

[tex]\sec \theta = \frac{13}{5}[/tex]

[tex]\csc \theta = \frac{13}{12}[/tex]

The six trigonometric functions related to (x, y) = (20, 48): sin θ = 12/13, cos θ = 5/13, tan θ = 12/5, cot θ = 5/12, sec θ = 13/5, csc θ = 13/12. [tex]\blacksquare[/tex]

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PLEASE FAST!!!! WILL GIVE BRAINLIEST!!!

Answers

Answer:

its B , 4 11/20

Step-by-step explanation:

Answer:

The 2nd Answer Choice

Step-by-step explanation:

You make sure that the fractions have the same denominator, and then you subtract them.

A triangular prism. The rectangular sides are 6 centimeters by 10 centimeters, 10 centimeters by 5 centimeters, and 10 centimeters by 5 centimeters. The 2 triangular bases have a base of 6 centimeters and height of 4 centimeters.

What is the surface area of the triangular prism shown?

32 square centimeters
120 square centimeters
184 square centimeters
1,560 square centimeters

\

Answers

Answer:

d

Step-by-step explanation:

is there any bias in the following survey question explain. So you prefer delicious chocolate ice cream or boring ice cream?

Answers

Answer:

yes, contains bias

Step-by-step explanation:

surveyor included their own opinions on chocolate ice cream being delicious and vanilla ice cream being boring.

2 ( x - 8 ) + 2 ( 12 ) how do i solve it?

Answers

you would multiply 2 by x which would give you 2x. Then, multiply 2 by -8 which equals -16. Then multiply 2 by 12=24. Then add all together and you get 2x +8

Hope this helps!!

Below is the graph of equation y=|x+2|-1. Use this graph to find all values of x for the given values of y. y>0

Answers

For the given absolute value function, we have that:

y > 0 in the intervals (-∞, -3) and (-1, ∞)

y < 0 in the interval (-3, -1)

y = 0 for x = -3 and x = -1.

When the function is positive?

The function is positive when the graph is above the horizontal axis.

Here, we can see that the intervals where the graph is above the horizontal axis is are (-∞, -3) and (-1, ∞)

When the function is negative?

The function is negative when the graph is below the horizontal axis. In this case, we can see that the only negative interval is (-3, -1)

When the function is zero?

The function is equal to zero when it intercepts the x-axis, in this case, the function is zero for x = -3 and x = -1

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please help me

A coin is flipped three times, and the following list shows the possible outcomes.

HHH, HHT, HTH, HTT, THH, THT, TTH, TTT

What is the probability of getting exactly one head?

Enter your answer as a reduced fraction, like this: 3/14

Answers

Answer:

3/8

Step-by-step explanation:

HHT,THH, and TTH are the 3 outcomes with 1 head out of 8 total outcomes

Ms. Rivera created two dot plots to compare the results of her recent science quiz for 1st period students compared to 7th period students. The dot plots are displayed to the right. Use this information to answer the questions below.

Answers

The dot plots is an illustration of charts and graphs

The average score of period 7 is greater than the average score of period 1

How to determine the period with the higher average?

From the dot plots in the complete question, we have the following frequency tables

Period 1                                                          Period 7

Score     Students                                          Score     Students

55           1                                                         65           1

70           1                                                         75           3

75           6                                                         80         5

80           6                                                         85         6

85           2                                                         90         3

90           3                                                         95        2

95           1                                                                

The average is calculated using:

[tex]\bar x = \frac{\sum fx}{\sum f}[/tex]

For period 1, we have:

[tex]\bar x_1 = \frac{55 * 1 + 70 * 1 + 75 * 6 + 80 * 6 + 85 * 2 + 90 * 3 + 95 * 1}{1 + 1 + 6 + 6 + 2 + 3 + 1}[/tex]

Evaluate the sum

[tex]\bar x_1 = \frac{1590}{20}[/tex]

Evaluate the quotient

[tex]\bar x_1 = 79.5[/tex]

For period 7, we have:

[tex]\bar x_7 = \frac{65 * 1 + 75 * 3 + 80 * 5 + 85 * 6 + 90 * 3 + 95 * 2}{1 + 3 + 5 + 6 + 3 + 2}[/tex]

Evaluate the sum

[tex]\bar x_7 = \frac{1660}{20}[/tex]

Evaluate the quotient

[tex]\bar x_7 = 83[/tex]

By comparison, 83 is greater than 79.5

Hence, the average score of period 7 is greater than the average score of period 1

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If a parallelogram has dimensions of 44 cm and 66 cm, what is the perimeter in millimeters?

Answers

perimeter of paralleogram(p) = 2 ( a + b ) = 2 ( 44 + 66) = 2 × 110 = 220 cm = 220 × 10 = 2200 millimeter

What is the area of the figure below?
3 5/6in 6in

Answers

Answer:

120

Step-by-step explanation:

120. Step by step explanation:

I NEED HELP QUICK!!!!

Answers

Answer:

45 miles

Step-by-step explanation:

Giving Information.

From Northville To Newberry is 18 inches.

2 in -> 5 miles

The inches cancel each other out leaving it miles.

[tex]18 inches*\frac{5 miles}{2 inches} = 45 miles[/tex]

Answer: 45 miles.

Step-by-step explanation: 2 in -> 5 miles, 18 inches.

What is the line of the equation PARALLEL to the line y=3x+4 and through the y-intercept of -6?

Answers

Parallel lines have slopes that are equal to one another.

Slope intercept form is:

y = mx + b (where m = slope and b = y-intercept)

the equation of the 1st line

y = 3x + 4 so it’s slope (m) = 3

the problem tells us the y-intercept of the second line is -6.

so we plug the two knowns into slope intercept form to get the equation of the second line:

y = 3x - 6

I hope this helps and is the BRAINLIEST!

Great luck with your studies :)

Answer:

y = 3x - 6

Step-by-step explanation:

The line here is parallel

Slope remains the sameY-intercept is now -6

Equation of line

y = mx + c [where m = slope and c = y-intercept]y = 3x - 6

need help will give brainlist​

Answers

Answer:

It's the 2nd one 3y2-43y over 12y2

Step-by-step explanation:

First u do a common denominator u multiply on the first side by 6y on the second side by 4 then u solve it till u get 6y2-86y over 24y2 then simplify by dividing by 2

During a sale, a store offered a 15% discount on a TV that originally sold for
$540. After the sale, the discounted price of the TV was marked up by 15%.
What was the price of the TV after the markup? Round to the nearest cent.

Answers

0.765 (100) + .06 (.0765 x 100)

76.5  + .06 (76.5)  

76.5 + 4.59 = 81.09    Chris will pay $81.09

A better way ( if you don't care to know the tax just the bottom line of what it will cost) would be to do:

0.765x x 1.06 = 76.5 x 1.06 = $81.09 too.

Why the 1 in front of the .06?  The one includes the price of the coat so you don't have to add the tax on after.

Think about it like this. When you buy something you pay (even with an employee

discount) for all of it (100%) + the tax (in this case, it's 6%)  So you pay 106% of the cost of the item.  106% = 1.06

Are the following functions exponential growth or decay?
Graphing Exponentials

a) f(x)=10(2)x

is this exponential growth? or exponential decay?

b) f(x)=2(0.5)x

is this a exponential growth? or exponential decay?

Answers

Answer:

a) growth b) decay

Step-by-step explanation:

In the function f (x) = b^x when b > 1, the function represents exponential growth.

In the function f (x) = b^x when 0 < b < 1, the function represents exponential decay.

a)b=2 > 1 this function growth

b)b=0.5 < 1 this function decay

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