HELP ASAP !!!! WILL MARK BRANLIEST !

A group of students is investigating whether wheels affect the force of friction. The students push two boxes each with the same force on a table. One box has wheels and the other does not have wheels. The distance traveled by each box is shown.


Experimental Observations
Student 1 Student 2 Student 3 Student 4
Distance traveled by box with wheels 24 cm 22 cm 20 cm 23 cm
Distance traveled by box without wheels 12 cm 14 cm 15 cm 13 cm


Which step should the students take next?
Make a hypothesis
Test another variable
Analyze the results
Share their conclusion

Answers

Answer 1

Answer: Yes wheels affect the force, with wheels it moves longer and faster without wheels it doesn't move as much and doesn't go fast.

So they should; Share their conclusion

Step-by-step explanation: This really ez


Related Questions

Evaluate `int cosec^(2)(7-5x)dx​

Answers

Answer:

∫ cosec²(7-5x) dx =[-cot(7-5x)]/-5 +c

=(1/5)cot(7-5x)+c

note: d/dx(cotx)=- cosecx

timed question need help

Answers

Step-by-step explanation:

m-7/3 = m+2

= m-7 = 3(m+2)

= m-7 = 3m+6

= -7-6 = 3m-m

= 2m = -13

= m = -13/2

1 1/2 x 3/4 pls full aswer

Answers

Answer:

1.125 or 9/8

Step-by-step explanation:

The base of an aquarium with given volume V is made of slate and the sides are made of glass. If slate costs five times as much (per unit area) as glass, find the dimensions of the aquarium that minimize the cost of the materials. (Let x, y, and z be the dimensions of the aquarium. Enter your answer in terms of V.)

Answers

Answer:

The dimensions of the aquarium that minimize the cost of the materials:

[tex]x=y=\sqrt[3]{\frac{2V}{5}}\\z=\sqrt[3]{\frac{25V}{4}}[/tex]

Step-by-step explanation:

Let x, y and z be the dimensions of aquarium .

Surface area of an aquarium = xy+2yz+2xz

Volume of aquarium V=[tex]Length \times Breadth \times Height=xyz[/tex]  ----A

We are given that slate costs five times as much (per unit area) as glass

So, Cost function : C=5xy+2yz+2xz

Now we will use langrage multiplier to find the dimensions of the aquarium that minimize the cost of the materials.

[tex]\nabla C =\lambda \nabla V[/tex]

[tex](\frac{\partial C}{\partial x},\frac{\partial C}{\partial y},\frac{\partial C}{\partial z})= \lambda (\frac{\partial V}{\partial x},\frac{\partial V}{\partial y},\frac{\partial V}{\partial z})[/tex]

[tex](5y+2z,5x+2z,2y+2x)=\lambda(yz,xz,xy)[/tex]

So,

[tex]5y+2z=\lambda yz[/tex]   ----1

[tex]5x+2z=\lambda xz[/tex] -----2

[tex]2y+2x=\lambda xy[/tex]  ----3

Multiply 1 ,2 and 3 by x,y and z respectively.

[tex]5xy+2xz=\lambda xyz[/tex]   ----4

[tex]5xy+2yz=\lambda xyz[/tex] -----5

[tex]2yz+2xz=\lambda xyz[/tex]   ----6

Now equate 4 and 5

5xy+2xz=5xy+2yz

x=y

Substitute y=x in 5 and 6 and equate them

[tex]5x(x)+2(x)z=2(x)z+2xz\\5x^2=2xz\\5x=2z\\\frac{5}{2}x=z[/tex]

Substitute the values in A

[tex]V = xyz = x \times x \times \frac{5}{2}xV=\frac{5}{2}x^3\\\sqrt[3]{\frac{2}{5}V}=x\\x=y=\sqrt[3]{\frac{2}{5}V}\\z=\frac{5}{2}x=\frac{5}{2}(\sqrt[3]{\frac{2}{5}})=\sqrt[3]{\frac{25V}{4}}[/tex]

Hence,

The dimensions of the aquarium that minimize the cost of the materials:

[tex]x=y=\sqrt[3]{\frac{2V}{5}}\\z=\sqrt[3]{\frac{25V}{4}}[/tex]

melonie is 3 times older than her cousin their total of there ages are 36 how old is melonies cousin

Answers

Answer:

Her cousin is 12

Step-by-step explanation:

Use division

The 7th grade team went out for lunch. Their server brought the bill that totaled $72. The team wanted to tip the server 20% and there is also a 9% sales tax. How much will the 7th grade team spend after the tip and tax are added? Round your answer to the nearest cent if necessary.

Answers

Answer:

I think it's 92.88

Step-by-step explanation:

add up 20 and 9 to get a total of 29%

then multiply .29 and 72 to get 20.88

then add 20.88 and 72 to get the total cost including tips and tax

Please help as soon as u see this!

Answers

Answer:

c, or 8

Step-by-step explanation:

Answer:

D

It would be either C or D because anything greater than 5, you move the next number up 1 digit.

Step-by-step explanation:

Which angles are corresponding angles?

Picture in the question, please help on test that’s due soon!

Answers

Answer:

8 and 16

Step-by-step explanation:

Answer:

I have 8 and 16

me pueden explicar las sumas y restas con punto decimal por favor

Answers

Jtitsyjyidyidiydiydkydjydigdkg cnzjczyrHfzfuxhixgishis

Answer:

Para sumar o restar decimales se colocan los números decimales uno debajo del otro, haciendo que coincidan las unidades en la misma columna. De esta manera, también tienen que coincidir las décimas, las centésimas… y la coma.

Step-by-step explanation:

I need help please it’s due today I forgot how to do this :(

Answers

Answer:

Samantha payed 12.71$ for her purchase.

Step-by-step explanation:

I may have misunderstood the question, but it looks like you can use a calculator for this!

6.19 + 2.85 + 2.29 + 1.38 =

12.71

Subtract 1 4/5 from 4 2/3 =?​

Answers

Answer:

2.86666667

Step-by-step explanation:

Answer:

1 18/25

Step-by-step explanation:

4 2/3-1 4/5

=14/3-9/5

LCM is 15

=(70-27)/15

=43/25

Charlie bought hamburgers and drinks for his coworkers. Each hamburger cost $3.75 and each drink cost 50 cents. In total, Charlie paid $25.50 for his order. Write an equation that represents the relationship between the number of hamburgers he bought, h, and the number of drinks he bought, d.

Answers

Answer:

25.50=3.75h+0.50d

Step-by-step explanation:

Compute 49/24 of 15/24. Give your answer as a fraction in simplest form (not a mixed number).

Answers

Answer: 35/16

Step-by-step explanation:

Answer:

35/16

Step-by-step explanation:

49x15=735

Denominator will stay the same because both are same (24)

Then you simplify  735/24

Which will give you 35/16

please help thank you so much ​

Answers

Answer:

no solution

Step-by-step explanation:

Translate the algebraic expression into a verbal (word) phrase: 2(x + 5)

Answers

Answer:

a number plus five times two

Step-by-step explanation:

a number plus five times two

A store plans to sell two different game consoles, the YuuMi and the ZBox. The store’s wholesale cost for a YuuMi is $250, and the store can sell one for $295. The ZBox’s wholesale price is $400, and the store can sell it for $450. The store’s marketing research indicates that the total monthly demand for game consoles will not exceed 250 units sold. The store’s financial manager does not want to invest more than $70,000 in inventory costs for game consoles. How many of each game console should the store stock in order to maximize their profits, and what is their maximum monthly profit?
Constraints:

Objective formula:

Answers

9514 1404 393

Answer:

Constraints: x + y ≤ 250; 250x +400y ≤ 70000; x ≥ 0; y ≥ 0Objective formula: p = 45x +50y200 YuuMi and 50 ZBox should be stockedmaximum profit is $11,500

Step-by-step explanation:

Let x and y represent the numbers of YuuMi and ZBox consoles, respectively. The inventory cost must be at most 70,000, so that constraint is ...

  250x +400y ≤ 70000

The number sold will be at most 250 units, so that constraint is ...

  x + y ≤ 250

Additionally, we require x ≥ 0 and y ≥ 0.

__

A profit of 295-250 = 45 is made on each YuuMi, and a profit of 450-400 = 50 is made on each ZBox. So, if we want to maximize profit, our objective function is ...

  profit = 45x +50y

__

A graph is shown in the attachment. The vertex of the feasible region that maximizes profit is (x, y) = (200, 50).

200 YuuMi and 50 ZBox consoles should be stocked to maximize profit. The maximum monthly profit is $11,500.

What is The geometric series 24_8+8/3_8/9+8/27_8/81 usn siga notaton

Answers

Answer:

17

Step-by-step explanation:

Use BODMAS Method

B - Brackets

O - Power

D - Division

M - Multiplication

A - Addition

S - Subtraction  

24 - 8 + 8/3 - 8/9 + 8/27 - 8/81

First division

8/3 = 2.66666666667

8/9 = 0.88888888888

8/27 = 0.29629629629

8/81 = 0.09876543209

Then Subtract

24 - 8 = 15

2.66666666667 - 0.88888888888 = 1.77777777779

0.29629629629 - 0.09876543209 = 0.1975308642

Then lastly add

15 + 1.77777777779 + 0.1975308642 = 16.975308642

In these type of questions, the answer have decimals, so we have to round it to near whole number.

So nearest whole number is 17

Answer = 17

Hope you understand

:-)

Graph the line with slope – 7 and y-intercept 6.

Answers

Answer:

(✿◠‿◠)

I put the link in the comments!

A graph of the line with a slope of -7 and y-intercept of 6 is shown in the image below.

What is the slope-intercept form?

In Mathematics and Geometry, the slope-intercept form of the equation of a straight line is given by this mathematical equation;

y = mx + b

Where:

m is the slope or rate of change.x and y are the points.b is the y-intercept or initial value.

Based on the information provided about this line, the y-intercept is 6 and the slope is -7.

In this context, we can logically deduce that a linear equation that models the line is given by;

y = mx + b

y = -7x + 6

Read more on slope-intercept here: brainly.com/question/7889446

#SPJ6

Estimate. Then find the difference. 476-269

Answers

Answer: 207

Step-by-step explanation:

Hey there! I will give the following steps, if you have any questions feel free to ask me in the comments below.

Step 1: Use the algorithm method.

Step 2: Therefore, 476 − 269 = 207.

207

~I hope I helped you! :)~

Angles of triangles I need help with homework

Answers

Answer:

150 degrees

Step-by-step explanation:

A triangle adds to 180 degrees.

48 + 102= 150

180-150 = 30

Then the angle x in total adds to 180

180-30= 150 degrees

(4 to the 4th power)to the 3rd power​

Answers

4^7 (4 to the 7th power)

please help me solve this problem.. Piecewise Functions

Answers

Answer:

There is No solution to the question above.

Answer:

103

Step-by-step explanation:

Since x= 10, we need to use the second piece of the function x^2+3

f(x) = x^2 +3

Let x=10

f(10) = 10^2 +3

       = 100 +3

       = 103

Find m a. 90
b. 31
c. 59

Answers

Answer:

i think its B

sorry if its wrong im not really sure by my answer

A biker rides for h hours at a speed of s miles per hour and travels d miles. Which equation models the relationship?

Answers

Answer:

hs=d

Step-by-step explanation:

Answer:

hs= d

Step-by-step explanation:

order the numbers from least to greatest please help

Answers

Answer:

-2,-7/4, 1/2, square root of 5, 2.4

Step-by-step explanation:

Answer:

-2, -1.75, 1/2, [tex]\sqrt{5}[/tex], 2.4

Step-by-step explanation:

1/2

-2

√5≈2.24

-1.75

2.4

-2, -1.75, 1/2, [tex]\sqrt{5}[/tex], 2.4

What is the domain of the function
f(x)=1x-3
-3 when the range is {-6. 0, 9}?

Answers

Answer:

D : { -3, 3, 12}

Step-by-step explanation:

I would suggest substituting the range for the function and solving for x like so.

i.e -6 = 1x-3, -6 + 3 = 1x -3 + 3, -3 = x, x = -3.

0 = 1x - 3, 0 + 3 = 1x - 3 + 3, 3 = x, x = 3.

9 = 1x - 3, 9 + 3 = 1x -3 + 3, 12 = x, x = 12


A store owner paid $15 for a book. She marked up the price of the book by 20% to determine its selling price. What is the selling price, in dollars, of the
books?

Answers

Answer:

18

Step-by-step explanation:

.2x15=3

3+15=18

Answer:

18$

Step-by-step explanation:

slove the equation
7h-5(3h-8)=-72

Answers

Answer:

Step-by-step explanation:

You can break it down into steps if you'd like.

-5 ( 3h - 8) = -15h + 40

So,

7h - 5 ( 3h -8 ) = -72

7h - 15h + 40 = -72

Now you can combine the like terms

-8h + 40 = -72

Add 8h to both sides

40 = -72 + 8h

Add 72 to both sides

40 + 72 = 8h

112 = 8h

Divide both sides by 8 to find h.

h = 112/8 = 14

h = 14. Is the answer

What is the solution to j + (-3) = 9?

Answers

Answer:

j = 12

Step-by-step explanation:

j + (-3) = 9

j = 12

Does anybody know this one as well plz I really need it I have a test and it ends in 20 thank you so much

Answers

Answer:

0.6 of a serving is 225

3.85 servings are 1350

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