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quester [9]
3 years ago
12

Please help me with this question 3.14 for pie

Mathematics
2 answers:
dangina [55]3 years ago
4 0

Answer:

25.12 is the circumference

Step-by-step explanation:

I hope that is what you meant!

aalyn [17]3 years ago
3 0

Answer:

28.27 inches^{2}

Step-by-step explanation:

To work this out you would first have to work out the area of the larger circle. You can achieve this by firs dividing the diameter of 10 by 2, which  gives you 5. This is because the radius is half of the diameter. You would then have to multiply pi by the radius of 5 squared, which gives you 78.54. Then the next step it is to work out the area of the smaller circle. To do this you would first need to divide the diameter of 8 by 2 to work out the radius, which gives you 4. Then you would multiply pi by the radius squared. which gives you 50.27. The final step is to minus 50.27 from 78.54, this gives you 28.27.

The formula for the area of a circle is : \pi *radius^{2}

1) Divide 10 by 2.

10/2=5

2) Multiply pi by 5 squared.

\pi *5^{2}=78.54

3) Divide 8 by 2.

8/2=4

4) Multiply pi by 4 squared.

\pi *4^{2} =50.27

5) Minus 50.27 from 78.54.

78.54-50.27=28.27

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I need some help on #18
Nezavi [6.7K]

Answer:

  A. the vertical intercept (often called the y-intercept)

  B. the slope of the line

  C. V(t) = 100t +2000

  D. V(10) = 3000, the value in year 10

  E. see attached

Step-by-step explanation:

<h3>a. </h3>

You are told that year 0 is the year that you made the investment. Then the value in year 0 represents <em>the value of the investment in the year you made the investment</em>. (It is sometimes called the "initial value.")

When the function is graphed, the value in year 0 will be the value on the graph at t=0. If t=0 is the vertical axis (as it usually is), then 2000 is the vertical intercept--the point where the line meets the vertical axis.

__

<h3>b.</h3>

To find the difference between values in consecutive years, subtract one from the other:

  2100 -2000 = 100 . . . . the change in value in consecutive years

On the graph, for each increment of 1 in the value of t, the value of the investment will increase by this amount. That means the slope of the graph (rise/run) is 100/1 = 100. The difference in value in consecutive years is the slope of the graph.

__

<h3>c.</h3>

The equation of the line is ...

  V(t) = (slope) × t + (vertical intercept)

  V(t) = 100t +2000

__

<h3>d.</h3>

V(10) = 100×10 +2000 = 1000 +2000

V(10) = 3000 . . . . . the value of the investment in year 10

__

<h3>e.</h3>

see attached

7 0
2 years ago
HELPPPPP!!!!!!!!!!!!!!!!!!!
Anna35 [415]
8o+12y=362
12o+8y=388
Im choosing “o” for orchid and “y” for lily
20o+20y=750
20o=750–20y
o=37.5–y
(37.5–y)+20y=750
-y+20y=712.5
19y=712.5
y=37.5

So, lilies sell for $37.50

5 0
2 years ago
In order to estimate the typical amount of TV watched per day by students at her school of 1,000 students, a student has all of
Alja [10]

Answer:

1) the number of hours of TV watched

2)  quantitative

3) Mean or Median

Completed details of Question

Additional details to the question are as below

1) Identify the variable measured on each student.

2) Is the variable categorical or quantitative?

3) Identify two statistics that the student could use to summarize the variable.

a) Mean or Median

b) Mean or Proportions

c) Mean or Mode

d) Median or Mode.

Explanation to the answer:

1) The variable measured on each student is the number of hours of TV watched

2) The variable is the amount of time, therefore it is quantitative.

3)  Quantitative data can be used compare the exact size and extent of difference in two quantities. Therefore, the two statistics that the student could use to summarize the variables would be Mean or Median. Mean will be the average time and Median will be the middle when the amount of time is ordered from least to greatest.

6 0
3 years ago
Plz answer fast today
True [87]

Answer:

5 + 5 + 3 × 7

Step-by-step explanation:

Correct me if I'm wrong.

8 0
3 years ago
F(x)=x2+1<br> g(x)=2x-5<br> Find f(x)-g(x)
Alona [7]

Answer:

Step-by-step explanation:

x^2 + 1 -2x + 5

x^2 - 2x + 6

6 0
3 years ago
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