Need help on number 5!

Answers

Answer 1

a. To find the mean, you first have to add all of the numbers together. Keep in note that if there is more than 1 dot above the number, such as 2 or 3 dots, then you must add the the amount of dots there are above it. Next, you want to divide the total amount of the numbers by the total amount of numbers you have added to get this. That will be the mean. The mean represents the average amount of wage the college students earn during a 1-week span.

b. Next, you want to find the median. Put all of the numbers together in a line, ranging from smallest to largest. Whatever number is in the middle is going to be your median. Keep note for this as well that if there is, for example, 2 dots above the number, you will have to write the number two times. The median helps interpret the middle, and separates the lower, and high values.

c. No, a box plot is not the same as a dot plot. It can interpret the median, but not the mean. A box-and-whisker plot is usually used when you want to find the IQR (interquartile range).

Related Questions

y=2,y=-1/2 thats the equation but it told me to write more idk why

Answers

More information is needed.

Solve for all values of x by factoring.
x^2– 25 = 0

Answers

Answer:

Step-by-step explanation:

a²-b²=(a+b)(a-b)

x²-25=0

x²-5²=0

(x+5)(x-5)=0

x=-5,5

Write an equation of the line that passes through (18, 2) and is parallel to the line 3y−x=−12

Answers

Answer:

[tex]y = \frac{x}{3} - 4[/tex]

I hope this helps!

what did he do wrong

Answers

Answer:

I think step 1 because 0.5m + 6 does not equal 20 which messed up the solution.

Ramon places a mirror on the ground 45 ft from the base of a geyser. He walks backwards until he can see the top of the geyser in the middle of the mirror. at that point, Ramon eyes are 6 ft above the ground and he is 7.5 ft from the mirror. Use similar triangles to find the geyser

Answers

Answer:

36 ft

Step-by-step explanation:

6/x=7.5/45

270=7.5x

x=36

In this exercise we have to have knowledge of triangles, so we can use the theory of similar triangles to find the value of X, like:

[tex]36 ft[/tex]

To use similar triangle theory, we have to make a rule of 3, that is:

[tex]6/x=7.5/45\\270=7.5x\\x=36[/tex]

See more about triangles at brainly.com/question/10951564

What is the slope of a line perpendicular to y - 2x + 4 = 0?

Answers

Answer: 1/2

Step-by-step explanation:

Opposite reciprocal

If there are 800 students and 17/50 wear a green shirt, how many students are wearing a green shirt?

Answers

Answer: 272 students are wearing a green shirt.

Step-by-step explanation:

800/50 = 16

16*17 = 272

The table represents a proportional relationship between the number of hours it shows h, and the number of inches of snow, s on the ground. Find the constant of proportionality

The constant of proportionality is.

Answers

The constant of proportionality is 4, and the relationship is given by s = 4h.

What is an equation?

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

A variable can either be dependent or independent. A dependent variable depend on other variable while an independent variable does not depend on other variables.

Let h represent the number of hours and s represent the number of inches of snow on the ground. Since both variables are proportional, hence:

s = hk; where k is the constant of proportionality

Let us assume in the table, when h = 1, s = 4 hence:

s = hk

4 = k(1)

k = 3

s = 4h

The constant of proportionality is 4, and the relationship is given by s = 4h.

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Solve for x please... it's for a test and it's really hard
I'll give you all my points, thanks
4(x - 1) - 3 (x - 2) = - 8

Answers

X= -10 hope this helped

The answer is x=-10 hope this is right

hellppp
plsssssssssss

Answers

The answer is 4 and 9, this is because 2*2=4 and 3*3=9, so their square roots are 2 and 3

Ahmad rented a truck for one day. There was a base fee of $17.99, and there was an additional charge of 88 cents for each mile driven. Ahmad had to pay
$144.71 when he returned the truck. For how many miles did he drive the truck?
mile.

Answers

Answer:

266 miles

Step-by-step explanation:

(244.09-17.99)/0.85=266

Given CAD is a right angle and AB is bisecting CAD and if DAB=(7x-4) find X

Answers

Answer:

x = 7

Step-by-step explanation:

∠CAD is a right angle, right angles has 90° measurement.

m∠DAB = 7x - 4 AB bisects ∠CAD this means it divides the angle into two equal parts.

So it's safe to write the following equation:

7x - 4 = 45 (half of 90°)

add 4 to bot sides

7x = 49 divide both sides by 7

x = 7

What is the diameter of a sphere with a volume of 15276 cm", to the nearest tenth
of a centimeter?

Answers

Answer:

15.4

Step-by-step explanation:

15276 = 4/3 πr³

11457 = πr³

3646.88 = r³

15.4 = r

Answer:

30.8

Step-by-step explanation:

A 20 meter long cable is used to support a telephone, holding it perpendicular to the ground. If the cable forms a 60 degree angle with the ground, how high up the pole should the cable be attached?

Answers

A wire to be attached to support a telephone pole. Because of surrounding buildings, sidewalks and roadways, the wire must be anchored exactly 21 feet from the base of the pole. Telephone company workers have only 28 feet of cable, and 2 feet of that must

A median of a triangle always bisects the angle of the triangle that it intersects. true or false

Answers

Answer: True

Step-by-step explanation: Every triangle has exactly three medians, one from each vertex, and they all intersect each other at the triangle's centroid. In the case of isosceles and equilateral triangles, a median bisects any angle at a vertex whose two adjacent sides are equal in length. The concept of a median extends to tetrahedra.

Answer:

True

Step-by-step explanation:

Evaluate each expression if a = 2, b = -34
3. - 9 (a-6)

Answers

Answer:

Step-by-step explanation:

I'm assuming the expression we're solving here is -9(a-6).

-9(2-6)

(-9*2)-(-9*6)

(-18)-(-54)

Simplify.

-18+54

It equals 36.

Hope this helps.

Which of the following equations has an infinite number of solutions?
A. 3x – 3 = –4x
B. 2y + 4 – y = 16
C. 7x + 5 = 4x + 5 + 3x
D. 6y – 2 = 2(y – 1)

Answers

The answer is C

Simplify both sides of the equation and combine like terms.
You’re left with 7x+5 = 7x+5
Subtract 7x on both sides
Leaves you with
5=5
Subtract 5 on both sides
0=0
Infinite number of solutions.

The equation 7x + 5 = 4x + 5 + 3x has an Infinite number of solutions. which is the correct answer would be option (C).

What is the equation?

The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.

We have to determine which equation has an infinite number of solutions

As per option (C),

⇒ 7x + 5 = 4x + 5 + 3x

Combine comparable terms to simplify both sides of the problem.

You have become left with 7x+5 = 7x+5.

On both sides, subtract 7x.

This gives you 5=5.

Subtraction 5 from both sides

⇒ 0 = 0

Thus, this equation has an Infinite number of solutions.

Hence, the correct answer would be an option (C).

Learn more about the equation here:

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An item is regularly priced at %59 . It is on sale for 35% off the regular price. what is the sales price

Answers

Answer: 38.35%

Step-by-step explanation:

59%=59/100=0.59

0.59-0.35(0.59)=

0.59-0.2065=

0.5900-0.2065=

0.3835=38.35%

The price would be $26.55

A boat on a river travels downstream between two points, 90 mi apart, in 1 h. The return trip against the current takes 2 1 2 h. What is the boat's speed (in still water)?

Answers

Answer:

A)63miles per hour.

B)27 miles per hour

Step-by-step explanation:

HERE IS THE COMPLETE QUESTION

boat on a river travels downstream between two points, 90 mi apart, in 1 h. The return trip against the current takes 2 1 2 h. What is the boat's speed (in still water)??b) How fast does the current in the river flow?

Let the speed of boat in still water = V(boat)

speed of current=V(current)

To calculate speed of boat downstream, we add speed of boat in still water and speed of current. This can be expressed as

[V(boat) +V(current)]

It was stated that it takes 1hour for the

boat to travels between two points of 90 mi apart downstream.

To calculate speed of boat against current, we will substact speed of current from speed of boat in still water. This can be expressed as

[V(boat) - V(current)]

and it was stated that it takes 2 1/2 for return trip against the Current

But we know but Speed= distance/time

Then if we input the stated values we have

V(boat) + V(current)]= 90/1 ---------eqn(1)

V(boat) - V(current) = 90/2.5----------eqn(2)

Adding the equations we have

V(boat) + V(current) + [V(boat) - V(current)]= 90/2.5 + 90/1

V(boat) + V(current) + V(boat) - V(current)]=90+36

2V(boat)= 126

V(boat)=63miles per hour.

Hence, Therefore, the speed of boat in still water is 63 miles per hour.

?b) How fast does the current in the river flow?

the speed of the current in the river, we can be calculated if we input V(boat)=63miles per hour. Into eqn(1)

V(boat) + V(current)]= 90/1

63+V(current)=90

V(current)= 27 miles per hour

Hence,Therefore, the speed of current is 27 miles per hour.

Find angles in triangles
Find the value of x in the triangle shown below.
o
X =
53°
20
970

Answers

Answer:

x = 30°

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Geometry

All angles in a triangle add up to 180°

Step-by-step explanation:

Step 1: Set Up Equation

53° + 97° + x° = 180°

Step 2: Solve for x

Combine Like Terms: x° + 150° = 180°Isolate x: x = 30°

find the amount of hardener needed for 600g of carbon fiber if the ratio of the composite is 40% matrix to 60% fiber and the ratio of the matrix is 100 parts resin to 27 parts of hardener

Answers

The hardener needed for 600 g of carbon fiber is 85.04 g.

We are given that the ratio of the composite is 40 % matrix to 60 % fiber.

This can be written as:

Matrix : fiber = 40 % : 60 %

Matrix : fiber = 40 : 60

Matrix : fiber = 2 : 3

Now, we know that the carbon fiber = 600 g

Matrix : 600 g = 2 : 3

Matrix / 600 = 2 / 3

Matrix = 1200 / 3 g

Matrix = 400 g

Also, we are given that the ratio of the matrix is 100 parts resin to 27 parts of hardener.

This means that:

Hardener = 27 / 127 of matrix.

Hardener = 27 / 127 × ( 400 g )

Hardener = 85.04 g

Therefore, the hardener needed for 600 g of carbon fiber is 85.04 g.

Learn more about ratio here:

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Uma tecelagem fabrica 2000 metros de comprimento de tecido com 2 metros de largura em uma semana, com 4 teares funcionando 8 horas por dia cada. Se duas máquinas forem desligadas, em quanto tempo ela fabricará 1500 metros de comprimento de tecido com 3 metros de largura e com as máquinas trabalhando 6 horas por dia cada?

A
15 dias

B
18 dias

C
21 dias

D
28 dias

Answers

the answer is b. 18 días

I WILL GIVE BRAINLIEST

Select all the correct locations on the image.

Consider function f.

F(x) = x^3 + 2x^2 - 5x – 6

Select the locations of the zeros of function fon the coordinate plane. Then select the end behavior of its graph.

Answers

Answer:

Step-by-step explanation:

A x approach positive infinity. f(x) approach positive infinity

Answer:

a bit late

use desmos, seriously a life saver

Step-by-step explanation:

6th grade math help me plzz

Answers

Answer:

A-B really simple.

Step-by-step explanation:

This is a personal question what does 61.5 mean in height i wanna know for math class
hurry this is urgent im on a timer

Answers

Answer:

So 61.5 inches I'm guessing in feet would be 5.125 feet. You just divide 61.5 by 12 to get your answer.

Step-by-step explanation:

Juan hires an electrician. • Juan pays a one-time fee of $30. Juan also pays $45 for each hour the electrician works. How much will Juan pay if it takes the electrician 6.5 hours to complete the job?

Answers

Answer: 322.50

Step-by-step explanation:

45 * 6.5 = 292.5

292.5 + 30 = 322.5

I need help solving this ASAP

Answers

The answer is the letter b

5 - (x + 1) = 5x + 4

Answers

Answer:

x=0

Step-by-step explanation:

please helppppppppp!!!!

Answers

I can’t see the picture clearly , please retake a picture

While playing basketball, Jada’s heart rate goes up to 140 beats per minute. While jogging, her heart beats 40 times in 15 seconds. Assuming her heart beats at a constant rate while jogging, which of these activities resulted in a higher heart rate? Explain your reasoning.

Answers

Answer:

Basketball

Step-by-step explanation:

10 x 6 = 60 (there are 60 seconds in a minute)

25 x 6 = 150

jogging = 150

basketball = 160

Hope this helped!! <3

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