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Fantom [35]
3 years ago
9

:

Mathematics
1 answer:
NemiM [27]3 years ago
3 0

Answer:

22 hours = hours travelling altogether

Step-by-step explanation:

11 x 2 = 22

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Angelina has a fish tank in the shape of a rectangular prism. The fish tank is 20 inches long, 7 inches wide, and 12 inches tall
igor_vitrenko [27]

Answer: 1680 inches cubed

Step-by-step explanation:

Volume = Length x Width x Height

V = 20 x 7 x 12

V = 140 x 12

V = 1680 inches cubed

8 0
3 years ago
A person 5 feet tall cast a 11 foot shadow. A tree is casting a 27 foot shadow. How tall is the tree
Pavlova-9 [17]

Answer:

33?

Step-by-step explanation:

6 0
3 years ago
Zoe is doing a survey to find the time her classmates spend playing video games. She asks the following question:
Vladimir [108]
The data she would collect would be grouping people depending on how much video games they played. 

This however, is not a statistical question. Instead, she should set for example: 1-3 hrs per week, 4-6 hrs, etc. People play different amounts of hours, and so you cannot set a specific number, it must be a "range-of-numbers".

Also the question itself is kinda judging and comparative

so overall, umm... this question isn't really good

hope this helps :D
7 0
3 years ago
Read 2 more answers
What is the circumference of a circle with a diameter of 4.2 cm?
iogann1982 [59]

Answer:

it would be C≈13.19cm

hope this helps :)

6 0
3 years ago
Read 2 more answers
A study shows that 78​% of the population of all calculus students consider calculus an exciting subject. Suppose 20 students ar
alexdok [17]

Answer:

0.046145 = 4.6145%

Step-by-step explanation:

We need to find the probability of 19 or 20 (all) students considering calculus to be an exciting subject, so first we find the probability for 19 students, then for 20 students, and we sum these probabilities.

The probability of the student NOT considering calculus to be an exciting subject is 1 - 0.78 = 0.22

For 19 students, we also have to calculate a combination of 20 choose 19, as these 19 students can be in different "position" among the 20 students, so:

C(20,19) = 20!/19! = 20

Probability of 19 students considering calculus to be an exciting subject:

C(20,19) * 0.78^19 * 0.22^1 = 0.039196756

Probability of 20 students considering calculus to be an exciting subject:

C(20,20) * 0.78^20 = 1 * 0.78^20 = 0.006948516

The final probability is:

0.039196756 + 0.006948516 = 0.046145272 = 4.6145272%

Rounding to six decimal places: 0.046145 = 4.6145%

5 0
3 years ago
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