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kykrilka [37]
3 years ago
9

A student mixes chemicals a and b together and records the amount of time it takes for a color change to occur. the student repe

ats the process 5 more times each time changing the amount of chemical b used in the mixture. the independent variable in this experiment is the? amount of chemical b amount of chemical a time the color change
Mathematics
2 answers:
GREYUIT [131]3 years ago
5 0

Answer:

Option a) amount of chemical b

Step-by-step explanation:

Given that a  student mixes chemicals a and b together and records the amount of time it takes for a color change to occur. the student repeats the process 5 more times each time changing the amount of chemical b used in the mixture.

Since the student changes first the amount of chemical b used this is the independent variable x here.

y the dependent variable is the color change.

So answer is

Option a) amount of chemical b

Leno4ka [110]3 years ago
4 0
I believe the answer would be a because its the one that doesn't change<span />
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Answer:

\text{The length of new room}=16.64\text{ feet}

\text{Area of the new room}=266.24\text{ feet}^2

Step-by-step explanation:

We have been given that the Rumpart family is building a new room onto their house. The width of the new room will be 16 feet.

The length of the room will be 4% greater than the width. This means that length of new room will be 16 feet plus 4% of 16.

\text{The length of new room}=16+(\frac{4}{100}*16)

\text{The length of new room}=16+(0.04*16)

\text{The length of new room}=16+0.64

\text{The length of new room}=16.64

Therefore, the expression 16+(0.04*16) represents the length of new room and the length of new room is 16.64 feet.

Since we know that area of a rectangular shape is width times length.

\text{Area of rectangle}=\text{Length*Width}

\text{Area of the new room}=16\text{ feet}\times 16.64\text{ feet}

\text{Area of the new room}=266.24\text{ feet}^2

Therefore, the area of the new room will be 266.24 square feet.

5 0
3 years ago
Need help what is the equation of the purple line​
Ainat [17]

Answer:

y=-2/5x +8

Step-by-step explanation:

use y=mx+b      look at where the line intercepts with the y-axis and that is at 8 so that is your b. Then find two points and count how many down or up it is to get from the higher up point (i usually use the one that intercepts at the y-axis) to same line as the other point, in this case thats down two. Then count how many to the right it is and in this case it is 5. so since it went down thats -2 over 5 so then you just fill that into the y=mx+b   and you should get   y=-2/5x+8

Hope this helped!

ps. if this was right can you make it brainliest? thanks!

4 0
3 years ago
What is the area of a triangle having a base of 4 inches and a height of 8 inches?
riadik2000 [5.3K]

Answer:

a. 16 square inches

Step-by-step explanation:

6 0
3 years ago
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What is the slope of the line? Help Please
LenaWriter [7]
1/3x is the slope of the line i think
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3 years ago
I need help with this one​ pls
Amanda [17]

Answer:

x=35, y=35

Step-by-step explanation:

To be honest, you don't even have to do any maths to figure this one out if you know the theory.

Basically, any angles standing on the same arc (like x and y) are equal. So we know x=y, and the first option(x=35,y=35) is the only option where x is the same as y.

7 0
3 years ago
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