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Nikolay [14]
3 years ago
11

a cell phone company serveyed 200 random customers on weather they were satisfied with there phone service. They also noticed Wh

ich service plan each customer had. The results are shown in the frequency table below. Use this table to create a relative frequency table. drag each tile to the correct cell in the table'

Mathematics
1 answer:
Katen [24]3 years ago
5 0
<h3>Answer: See the attached image below for the filled out table</h3>

================================================================

Explanation:

For each value in the table, you will divide it over 200 because there are 200 people total in this survey. Doing so will give you the decimal form of the percent. From here you move the decimal point over 2 spots to the right to get it to percent form.

For instance, in the top left corner we have 104 people satisfied with plan A. This is out of 200. So 104/200 = 0.52 = 52% are satisfied with plan A. We'll write 52% in the top left corner. The other cells of the table are filled in a similar fashion.

An alternative route is possible. Since we are given a limited amount of choices (rather than fill in the blank), we can note that 8 is the smallest value in the table. This must mean that it corresponds to the smallest percentage in the list of options. Sure enough 8/200 = 0.04 = 4%. Then we have 24 as the next smallest item in the original table. It corresponds to the next smallest percentage 12%, and sure enough 24/200 = 0.12 = 12%. This process can be continued until you fill out the table. Keep in mind that this method only works if you are given a list of choices like this. Otherwise, it is ideal to use a calculator to compute the percentages.

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The circumference of the inner circle is 66 ft. The distance between the inner circle and the outer circle is 44 ft. By how many
Ray Of Light [21]

Answer:

  276 4/7 ft

Step-by-step explanation:

Let r1 represent the radius of the inner circle. Then its circumference in feet is ...

  C = 2πr

  66 = 2π(r1)

If the radius of the outer circle is (r1 +44), then its circumference is ...

  C = 2π(r1 +44) = 2π(r1) +2π(44)

  C = 66 +88π

Then the difference in the circumferences is ...

  (66 +88π) - (66) = 88π

Using the given value of π, the difference in circumferences is ...

  (88 ft)(22/7) = 1936/7 ft = 276 4/7 ft

6 0
3 years ago
(x + 2) is raised to the fifth power. The third term of the expansion is:
morpeh [17]

Answer:

3

Step-by-step explanation:

6 0
3 years ago
Find the value of the expression 0.5^10/0.5^7
SIZIF [17.4K]

Answer:

The solution is:

  • \frac{0.5^{10}}{0.5^7}=0.125

Step-by-step explanation:

Given the expression

0.5^{10}\div 0.5^7

Solving

\frac{0.5^{10}}{0.5^7}

\mathrm{Apply\:exponent\:rule}:\quad \frac{x^a}{x^b}=x^{a-b}

so

\frac{0.5^{10}}{0.5^7}=0.5^{10-7}

\mathrm{Subtract\:the\:numbers:}\:10-7=3

=0.5^3

=0.125        ∵ 0.5^3=0.125

Therefore, the solution is:

\frac{0.5^{10}}{0.5^7}=0.125

7 0
3 years ago
Why is math important “?
Pavlova-9 [17]

Answer:

Without math, how would we know how to count seconds minutes, etc.?

Math is extremely important for knowing how to do simple things like cooking, you need to know for how much time to put something in the oven or microwave or stove. Those are just the basics. There is a lot more stuff out there that math is used for.

4 0
3 years ago
Read 2 more answers
Which of the following equations will produce the graph shown below?
melisa1 [442]
The graph is a circle, centered at the origin, with radius=4.

We know that we can write the equation of a circle with radius r and center (a,b) as :

                      (x-a)^2+(y-b)^2=r^2.

Thus, substituting (a, b) with (0, 0) and r with 4, we have:

                      x^2+y^2=16.

The solutions of this equation are all the points forming the circle shown in the picture. The solutions of this equation are still the same even if we multiply both sides of the equation by 2, because rewriting the equation as:

x^2+y^2=16\\\\x^2+y^2-16=0\\\\2(x^2+y^2-16)=0, 

we would still have the same roots.

Thus, the equation of the circle can be written as :

                                    2x^2+2y^2=32.


Answer: B

5 0
4 years ago
Read 2 more answers
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