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Rashid [163]
3 years ago
12

The forumla for the volume of a cone is V=1/3pr^2h. the radius r of the caone may be expressed as

Mathematics
1 answer:
xeze [42]3 years ago
7 0
V=1/3hpir^2
times 3 both sides
3V=hpir^2
divide both sides by hpi
\frac{3V}{h\pi} =r^2
sqrt both sides
\sqrt{\frac{3V}{h\pi}} =r

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In Janie's homeroom 54% of the students' families own a dog and 32% own a dog and a cat. What is the probability that a student'
pogonyaev

Answer:

51,111%

Step-by-step explanation:

We know that 45% have a dog but no cat.  While 23% have both a dog and a cat.

Then Pr(X has cat|X has dog) = Pr(X has dog and cat)/Pr(X has dog)

= Pr(X has dog and cat)/Pr(X has dog) = 0.23/0.45 = 0.51 ≈ 51,111%

The probability that a student’s family owns a cat if the family owns a dog is 51,111%

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3 years ago
Students in the seventh grade at Texas Intermediate School were surveyed to find out their favorite store. The graph below repre
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Answer:

Option d is correct.

The number of students that chose Target as their favorite store over Ross = 4 students.

Step-by-step explanation:

The graph of the question is obtained from another brainly question on here. But uploading it will lead to deletion of this answer as it would be violating the community guidelines here.

So, I'm going to describe the graph.

The graph provided with the question is a pie chart, with each region clearly shown and the corresponding percentage for each of the students' favourite stores that come up in the survey given as

TJMax - 20%

Wal-Mart - 25%

Ross - 20%

Target - 25%

Others - 10%.

How many more students surveyed chose Target as their favorite store over Ross?

Total number of students sampled = 80

Number of students that picked Target

= 25% × 80 = 20 students

Number of students that picked Ross

= 20% × 80 = 16 students.

Number of students that chose Target as their favorite store over Ross = 20 - 16 = 4 students.

Hope this Helps!!!

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3 years ago
The diagram represents an enlargement of a rectangle by a scale factor of 4,
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Step-by-step explanation:

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Step-by-step explanation:

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