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Ivahew [28]
2 years ago
5

A chemist is estimating the volume of a solution in a test tube. The actual volume of the solution is

Mathematics
1 answer:
allochka39001 [22]2 years ago
4 0
The absolute error is:
actual - estimate = 33.2 - 35 = -2.8
that in percent can be found using a rule of three, we say that 33.2 is the 100%, and we find the % for 2.8
33.2 ml -------> 100%
  2.8 ml -------> x
x =(2.8)(100)/33.2
x = 8.4
then the percent error is 8.4%
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Write in slope form 2y = 24 ​
AlekseyPX

Answer:

  y  = 12

Step-by-step explanation:

The equation of the expression is given as;

              2y  = 24

We are to write in slope form';

    In slope form, an equation is expressed as;

             y = mx + c

where y and x are the intercept

               m is the slope

                c is the intercept

Now to write 2y = 24 in intercept form, we have;

                 2y  = 24

  divide both sides by 2;

                y  = 12

3 0
2 years ago
Part 1:
emmasim [6.3K]
Here are my answers to the given questions above:
Part 1. Here is my example of a real life scenario that describes what is happening. Let us say, I have 2 cookies and the bottle of milk costs 11 dollars, and 3 cookies and 4 bottles of milk cost 24 dollars.
Part 2. 
y=11-2x
3x+4(11-2x)=24
3x+44-8x=24
-5x=-20
x=4
y=11-8
y=3
Therefore, each cookie costs 4 dollars, and a bottle of milk costs 3 dollars.
Hope this answer helps. Let me know if you need more help next time.
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7 0
3 years ago
Can someone please help me with this? I'll give brainliest :)
vlabodo [156]

The slope of y = 3x - 4 on the interval [2, 5] is 3 and the slope of y = 2x^2-4x - 2 on the interval [2, 5] is 10

<h3>How to determine the slope?</h3>

The interval is given as:

x = 2 to x = 5

The slope is calculated as:

m = \frac{y_2 -y_1}{x_2-x_1}

<u>16. y = 3x - 4</u>

Substitute 2 and 5 for x

y = 3*2 - 4 = 2

y = 3*5 - 4 = 11

So, we have:

m = \frac{11  - 2}{5 - 2}

m = \frac{9}{3}

Divide

m = 3

Hence, the slope of y = 3x - 4 on the interval [2, 5] is 3

<u>17. y = 2x^2-4x - 2</u>

Substitute 2 and 5 for x

y = 2 * 2^2 - 4 * 2 - 2 = -2

y = 2 * 5^2 - 4 * 5 - 2 = 28

So, we have:

m = \frac{28  + 2}{5 - 2}

m = \frac{30}{3}

Divide

m = 10

Hence, the slope of y = 2x^2-4x - 2 on the interval [2, 5] is 10

Read more about slopes at:

brainly.com/question/3605446

#SPJ1

3 0
1 year ago
Please answers please
Allisa [31]

Answer:

i honestly dont know

Step-by-step explanation:

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3 0
2 years ago
What is 3,542 divide by 154
liubo4ka [24]

Answer:

23

Good Luck!!!

8 0
3 years ago
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