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3 years ago

Please answer this question now

Mathematics

1 answer:

Gnoma [55]3 years ago

8 0

Step-by-step explanation:

surface area of a cone is givn by

A=πr'2 +πLr

A=414.48 sq.cm

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Determine if the table shows a linear or an exponential function

____ [38]

Answer:

The table shows an exponential function

Step-by-step explanation:

Linear vs Exponential Functions

A linear function is written as:

$y=mx+b$

where m and b are constants.

If a table contains a linear function, then for each pair of ordered pairs (x1,y1) and (x2,y2), the value of m must be constant.

The slope can be calculated as:

$\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

An exponential function is written as:

$y=y_o.r^x$

Where r is the ratio and yo is a constant.

If a table contains an exponential function, for two ordered pairs (x1,y1) and (x2,y2), the value of r must be constant.

The ratio can be calculated as:

$\displaystyle r=\sqrt[x2-x1]{\frac{y2}{y1}}$

Calculate the slope for (0,4) and (1,2):

$\displaystyle m=\frac{2-4}{1-0}=-2$

Calculate the slope for (1,2) and (2,1):

$\displaystyle m=\frac{1-2}{2-1}=-1$

Since the slope is not the same, the function is not linear.

Now calculate the ratio for (0,4) and (1,2)

$\displaystyle r=\sqrt[1-0]{\frac{1}{2}}$

The radical of index 1 is simply equal to its argument:

$\displaystyle r=\frac{1}{2}$

Now calculate the ratio for (0,4) and (2,1)

$\displaystyle r=\sqrt[2-0]{\frac{1}{4}}$

$\displaystyle r=\sqrt{\frac{1}{4}}$

$\displaystyle r=\frac{1}{2}$

Testing other points we'll find the same ratio, thus the table is an exponential function

4 0

2 years ago

Read 2 more answers

Ten years ago, only 20% of the u.s. population consisted of people more than 65 years old. a researcher plans to use a sample of

Strike441 [17]

Hello person i don't know

5 0

2 years ago

Read 2 more answers

Monica walks 2 miles each day Monday through Friday. She walks 3 miles on Saturday. She does not walk on Sunday. Monica calculat

makvit [3.9K]

Answer:

She is wrong. She would have walked 337 miles after 29 weeks.

Step-by-step explanation:

13x29=337

3 0

2 years ago

Easy 20 points please tell me if I got it right and if not please tell me the right answer

mash [69]

Answer:

No, you are not correct.

It should look like this:

Prefer colorful decorations Prefer neutral decorations

Pay attention 20 25

to fashion

Do not pay

attention to 72 33

fashion

Step-by-step explanation:

33 is 22% of 150. In the question it states that 70% of people do not pay attention to fashion. We need to find the other 48% here. In order to do that we multiply .48 by 150. That gets us 72. To check that answer you can add both 72 and 33 and then divide by 150, which gets 70%.

To get the amount of people that prefer neutral decorations and pay attention to fashion we need to add up 20 + 72 + 33 and that equals 125. Next, we take 150 and minus 125 of it to get 25.

Hope this helps!!

- Kay :)

3 0

2 years ago

Miranda drinks 12 ounces of soda per day. How many ounces of soda does she drink per year?

devlian [24]

I hope this helps u!

6 0

3 years ago

Read 2 more answers