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Levart [38]
3 years ago
6

IM CONFUSED PLS HELP ME ANSWER THE NEXT PROBLEM! :(

Mathematics
1 answer:
iogann1982 [59]3 years ago
5 0

Answer

a) He carried the observation with different students instead of one. For a good research outcome one should have as many tests as possible. By using 10 students, that was an advantage in his observation.


b) 30 minutes was a very short time. He could have increased the time he took with each student. It takes more than 30 minutes to complete a single homework. So if it was possible to take more time with a single student, it could be better.

<em>c) </em><em>10 students.</em>

<em>d) </em><em>30%</em>

3 students out of 10 used social media while doing their homework.

That is : 3/10 × 100 = 30%.

30% of high school students use social media while doing homework.

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637.42−29.71<br><br><br><br><br> 607.71<br><br> 612.31<br><br> 618.31<br><br> 618.71
Salsk061 [2.6K]
607.71

Hope this helps! :)
6 0
2 years ago
Read 2 more answers
4 cm
vesna_86 [32]

Answer:

For cylinder TSA this is simple equation   TSA -  TBA = LSA

total surface area subtract the total base area and we get the lateral.

To find base it is 2pi r^2

so 2pi x r x h - 2 pi x r^2 = lateral surface area

Step-by-step explanation:

5 0
3 years ago
Use the figure to find the angle m
nordsb [41]

Answer:

Measure of angle M = 41°

Step-by-step explanation:

From the figure attached,

NM ≅ NO [Given]

Therefore, ∠O ≅ ∠M [Opposite angle of the equal sides]

By triangle sum theorem,

m∠O + m∠N + m∠M = 180°

m∠O + m∠N + m∠O = 180° [Since, ∠M ≅ ∠O]

By substituting the values of the given angles,

(4y - 15)° + (7y)° + (4y - 15)° = 180°

(15y - 30) = 180

15y = 210

y = 14

Therefore, m∠M = (4y - 15)°

                           = 4(14) - 15

                           = 56 - 15

                           = 41°

6 0
3 years ago
For this assignment, you will create a presentation to explain the additive and multiplicative
Mekhanik [1.2K]
Multiplicative inverse makes the numver 1 so it multiplies by 1 which cancles the number
examle
1/3x=10
to make 1/3 into 1
we multiplyu it by its mutlipcative invers which is 3/1
1/3 times 3/1=3/3=1
1/3x times 3/1=3/1 times 10
1x=30

additive inverse makes the number 0 to cancel it out
so example
x+3=10
add the inverse of 3 to make it 0
inverse of 3 is -3
3+-3=0

so x+3-3=10-3
x+0=7
x=7

4 0
3 years ago
Owen’s parents were planning a big birthday party for him. (a) His parents spent $2.49 on each of 6 goodie bags. How much did th
frozen [14]
(a) 2.49 * 6 = 14.94 <== what they spent on goodie bags

(b) 150 for 8 hrs = 150/8 = 18.75 per hr

(c) 182.53 - (150 + 14.94) = 182.53 - 164.94 = 17.59...they spent 17.59 more
6 0
4 years ago
Read 2 more answers
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