Casey wants to determine whether the rate at which melted glass cools affects the strength of the glass. He pours melted glass into a form and cools the glass at different rates. Then, he tests the breaking strength of each form. Which of the following is the test variable in this experiment?

A. type of glass
B. strength of the glass
C. thickness of the glass
D. cooling rate of glass

Help if you know and are sure!

Answers

Answer 1

D

"What is a variable?

A variable is used in a Fair Test. A variable is any one of the elements of the test which could be changed. They can change the outcome of an experiment.

In a fair test, only one variable is allowed to be manipulated – all others have to be kept the same,or “controlled”."


Related Questions

Please I need help! I'll give brainiest please!

Answers

Answer:

27

Step-by-step explanation:

D-27 I did the math want me to take a pic

The table shows a proportional relationship between the number of pounds of grapes
purchased and the total cost of the grapes.
A row of values is missing in the table.
Which number of pounds of grapes and total cost of the grapes could be used as the
missing values in the table?
Select each correct response.
Question 1 options:

Pounds of grapes: 2
Total cost: $1.38

Pounds of grapes: 3
Total cost: $2.53

Pounds of grapes: 6
Total cost: $3.68

Pounds of grapes: 8
Total cost: $5.52

Pounds of grapes: 11
Total cost: $8.97

Answers

Answer:

Pounds of grapes: 11

Total cost: $8.97

Step-by-step explanation:

Because when you look at the prices, the last answer (Pounds of grapes: 11

Total cost: $8.97)is the most correct because it is adding by 2 (2, 4, 6, 8) every time. Its not exactly 8 but its the closet number :)

Without evaluating each expression, determine which value is the greatest.
Group of answer choices

(−756)÷(−934)

(−756)⋅(934)

(−756)+(−934)

756−934

Explain Reasoning

Answers

Answer:

756−934 is the greatest because the others are more in the negatives  

Step-by-step explanation:

756-934 is the greatest as the others are smaller than it

please help me out! this is urgent please do it correctly heres 10 points and a brainleist if you answer it right

Answers

Answer: An independent variable is exactly what it sounds like. It is a variable that stands alone and isn't changed by the other variables you are trying to measure. For example, someone's age might be an independent variable.
An independent variable is a variable that is alone, without anything

i gotta finish missing work, i'll give brainliest to whoever answers right

Answers

Answer:

Step-by-step explanation:

7. 6 + 1/2 + 1/2 = 7

8. shade it

9. 1.3 + 0.2 + 0.4 = 1.9       0.8 + 0.2 + 0.7 = 1.7

10. (2)(4)(5) = 40

    (4)(5)(1) = 20

    (5)(6)(0) = 0

hope dis helps ^-^

A food shop makes wraps where you can only choose one kind of wrap, one meat, and one veggie. (NO TROLL ANSWER)

Answers

Answer:
we don’t have the whole question so we don’t know what amber likes and doesn’t like.
Explanation:
next time include the WHOLE question

anybody best oen gets brainlyest

Answers

Answer:

C - 300

Step-by-step explanation:

That’s where the middle box line is

300 but at the same time there is calculations needed

Our bodies need protein to build and repair tissues. Nutrition experts recommend that a person weighing w kilograms should eat 0.8w grams of protein each day. At his check-up last week, Dominic weighed 35 kilograms.
How many grams of protein should Dominic eat each day?

Answers

Answer:

Dominic should eat 28 grams of protein.

Step-by-step explanation:

0.8 * 35= 28

Can someone help me

Complete the chart
(HINT: The product of each column equals the same value

Answers

Answer:i dont and i dont see what to do

Step-by-step explanation:

ah im having a hard time with this someone answer plz no one is answering the question exept bots trying to scam me.an online retailer charges $5.99 plus 0.65 per pound to ship to electronics purchases.How many pounds is a ... for which the shipping charge is $22.89. ive been having a bit of trouble finding this out,much appretiation if you solve this.Thanks!

Answers

Answer:

26 pounds

Step-by-step explanation:

let x be the number of pounds.

then

5.99+0.65x=22.89

0.65 x=22.89-5.99=16.90

[tex]x=\frac{16.90}{0.65}=\frac{1690}{65}=26\\[/tex]

Please help quickly :(

Answers

Answer:

x=8

Step-by-step explanation:

3x-24

3(8)=24

24=24

The answer is 8 yea sight

Match each number with its opposite

Answers

Answer:

1-c

2-d

3-a

4-b

Step-by-step explanation:

A circular lawn with a diameter of 20 square feet will be planted with grass seed. How many square feet are on the lawn?

31.4 ft squared
125.6 ft squared
314 ft squared
1,256 ft squared

Answers

Answer:

314 ft squared

Step-by-step explanation:

A = πr^2 = π · 102 ≈ 314.15927

Answer:

314.159265359 ft squared or 314.16 ft squared rounded to the hundredths place. The closest result is option C.

Step-by-step explanation:

The formula for finding the area of a circle is A=π×r^2.

Step 1: Find the radius which is half of the diameter. In this case, the radius is 10 feet.

Step 2: Square the radius that you found. In this case, the number will be 100ft or 10^2.

Step 3: Multiple this number by π, or 3.14 if your teacher allows it. So in this case, 100×π=314.159265359 or 314.16 rounded to the hundredths place. If you use 3.14... the answer is 314.

Step 4: You've got your answer. Hope this helps!

BEST ONE GETS BRAINLIST but..... if u answer something thats not really the answer im reporting u bc ik when you are useing me for points AND PLZ SHOW WORK OR TELL ME HOW YOU KNOW extra points

Answers

Answer:

16.2

Step-by-step explanation:

If you want to get the volume of the rectangular prism, than you would have to multiply the width, long and tall. So I guess it will have to be 1.2x3x4.5=16.2

can someone help me with this please i've been stuck on this question for 9 minutes.

Solve 7 ÷1/2 = ___

Answers

Answer:

14

Step-by-step explanation:

Answer:

14 is the answer

Step-by-step explanation:

7/1/2

7*2

14

for your explanation when there is double division number gets multipiled.

What is the probability of rolling a number greater than 12?

Answers

Answer:

Impossible

Step-by-step explanation:

It is impossible because if there are 2 die the greatest number you can roll is 12 with both of the numbers being 6.

The volume of a pyramid is 47 3. The height of the pyramid is 6 meters. What is the area of
its base?

Answers

473x6= 2,838

the answer should be 2,838?

Answer:

1,419

Step-by-step explanation:

because 473 times 6

Help I don’t understand this

Answers

Answer:

first one is true, second one is true, i cant see the third question

Step-by-step explanation:

1. True
2. True
3. False

Question is in picture

Answers

Answer:

A!

Step-by-step explanation:

4+1.5+5.75+2.125= 13.375= 13 3/8

If this helped please give me brainliest!

Hope this helps and don't forget to follow!

the answer is a hope this helps

please help me with this
no links

Answers

the inequality is 92.05=18+0.05x

x= the number of minutes he uses

subtract 18 from both sides, which makes it

74.05=0.05x

divide both sides by 0.05 and that makes it

x= 1,481

so he used 1,481 minutes

Please I need help! I'll give brainiest please! And explain how you got your answer please!

Answers

the answer is 27 or D

Answer:

27

Step-by-step explanation:

You solve the parentheses then multiply that by 9 and divide by 4.

If the volume of a prism is 18 in3, what is the volume of a pyramid with the same base area and height?
Group of answer choices

6 in3

36 in3

9 in3

54 in3

Answers

The answer is 54 in3 hope this helps

can yall plz help me whit this question

Answers

If Callie puts more bags that equal .50 it will equal out and weight the same as the other basket
the answer is 50 hope this helps :))

Question 3 of 45
The scatterplot shown below represents data for each of the years from 2006
to 2015. The plot shows the percent of people 62 years of age and older who
were working and then retired during each of those years. If this trend continued,
which of the following best predicts the percent who retired in 2016?

Answers

Answer:

64%

Step-by-step explanation:

Please help...

Will someone please help on the questions circled in black...

Answers

Answer: 55.041

Step-by-step explanation:

#2 is 154 when rounded up

Sketch the graphs using 3 points that belong to it...


-3x+2

-3x-2


Answer this problem too pls

15/17 + 3/16 + 2/17 + 13/16=?

+30pts and Brainliest QUICK PLS!

Answers

15/17 + 3/16 + 2/17 + 13/16 = 2
hope this helps :)

HEEEEEEEEEELLPPP and I will mark you the brainliest because you're clearly smarter than I am.

Answers

Answer:

Sorry, I am confused; what was the question?

Step-by-step explanation:

:)

pleasee pleaseee help me with this noww
Ok can someone please help with these two
The price of a DVD is $24.00 plus 8.25% sales tax. What is the sales tax on the DVD in dollars and cents?
(answer choices
$19.80
$0.19
$1.98
$0.20)

Derrick goes to the store and buys a pair of shoes for $79.99, a shirt for $24.99, and a pair of shorts for $34.99. If the sales tax is 8.5%, then about how much did Derrick pay in sales tax?
(answer choices
$111.97
$11.90
$16.42
$1.11)

Answers

Answer:

first one is 1.98

Step-by-step explanation:

The answer is 1.98 hope this helps

Please help! Look at the picture.

Answers

Answer:a c d!!

Step-by-step explanation: tbh I searched it up

Need Help Please ASAP

Answers

Answer:

first step; subtract 7 from both sides. you are left with -3n=8. step two; divide both sides by 3. it should get you to -n=8. therefore n=-8

Step-by-step explanation:

i hope this helped you! :)

-2.6 or -8/3 would be your answer. You always have to isolate the x! Hope this helps!
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