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Veronika [31]
4 years ago
5

Referring to my data the test tubes that had the most noticeablechange in color was test tube #2 which contained the cabomba in

the light, the original color of the test tube was green and by the end of the lab it had changed to a darker blue. Test tube #2 also hadthe most drastic absorbance rates compared to the others, when wetook the first reading for test tube #2 it read 0.0007 and the final reading was 0.609. Test tubes #1 (water in light) and #3 (water in the dark) remained at zero since it was our control group and contained just the bromothymol blue. Test tube #4 had a slight change in color starting with a more prominent green color and changing to a pale shade of green towards the end of the lab, test tube #4 also had a slight change in absorption ratings as well. Whenwe took the first reading for test tube #4 it read -0.037 and the finalreading was -0.090. When we compare the color of the test tubes that is quantitative data and when compare the absorption rating that is an example of _____ data
qualitative
quantitative
none of the above
Mathematics
1 answer:
-BARSIC- [3]4 years ago
5 0

Answer:

qualitative

Step-by-step explanation:

Qualitative data is one which is non numerical in nature. The data which has characterizes types of units under observation. Here also in the given question the when the colors of test tube are compared we look at the specific color of certain test tube. When the absorption ratings for the test tube are compared we are looking at the capacity of the test tube. This represents the characteristic of certain test tube. This is an example of qualitative data.

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Find angle E if angle E and angle F are supplementary, angle E= 2x + 15 and angle F= 5x - 38
miss Akunina [59]

Answer:

Angle E = 73 degrees

Step-by-step explanation:

Supplementary means it equals 180 degrees.

So to find x, you add the 2 equations.

2x + 15 + 5x - 38 = 180

which equals 7x + (-23) = 180 = 7x - 23 = 180

7x = 203  You move the -23 to the other side

203/7 = 29  So x = 29 degrees

So to find angle E, you put in 29 degrees for x.

2 x 29 + 15 = 73 degrees

7 0
3 years ago
Find each sum or difference.<br> (W2 – 4w - 1)+(-5 + 5w2 – 3w)
Firlakuza [10]

Answer:

5w -6

Step-by-step explanation:

(W2 – 4w - 1)+(-5 + 5w2 – 3w)

combine like terms in the 2 groups

(-2w-1)+(-5+5w(2) -3w)

(-2w-1)+(-5+10w-3w)

(-2w-1)+(-5+7w)

now add/subtract all

5w -6

6 0
3 years ago
Monica has a 24
melamori03 [73]

Answer:

The fraction of frame did Monica paint blue is \frac{3\sqrt{6}}{2}  

Step-by-step explanation:

Given as :

The area of square frame = A = 24 square inches

Monica paint \frac{3}{4} of one side of the frame blue

Let the measure of one side of frame = x

So, <u>From Area of square</u>

Area = side × side

Or, A = x × x

Or, x ² = 24

∴  x = \sqrt{24} = 2\sqrt{6}

So, Measure of each side = x = 2\sqrt{6}

Now, As Monica paint \frac{3}{4} of one side of the frame blue

So, The painted part = \frac{3}{4} ×  2\sqrt{6}

∴ The painted part = \frac{3}{2} × \sqrt{6}

I,e The fraction of painted blue = \frac{3\sqrt{6}}{2}

Hence, The fraction of frame did Monica paint blue is \frac{3\sqrt{6}}{2}  Answer

7 0
3 years ago
Read 2 more answers
The first bus stop on a bus route is 4 miles from school how many yards is the first bus stop from school
Aleksandr [31]
7,040 Yards because there is 1760 yards in a mile.
1760 x 4 = 7,040
5 0
3 years ago
What is (12m+1) - (5m-4)
Kipish [7]

Answer:

7m + 5

Step-by-step explanation:

If you "open up" the parentheses, you would get:

12m+1-5m+4

Which, if you combine like terms, is:

7m+5

Hope this helps :)

3 0
3 years ago
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