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3 years ago

What’s the circumference of the circle D equals 6 feet

Mathematics

2 answers:

Lorico [155]3 years ago

4 0

Answer:

About 18.5 feet

Step-by-step explanation:

The circumference of a circle can be found using:

c= $\pi$ d

We know d, or diameter is 6, so we can plug that it

c= $\pi$ 6

Multiply

c=18.8495559215

Rounded to the nearest hundreth

c=18.50 feet

The circumference is about 18.5 feet

k0ka [10]3 years ago

4 0

Answer:

18.85 Feet

Step-by-step explanation:

To find the circumference of a circle you use the formula

Circumference = Pie x Diameter This is written as

$C = \pi *D$

So for your Problem you would simply insert The diameter that has been provided for you into the formula which would be

C = 3.14 × 6 and solve

3.14

18.85 Feet

Just FYI if you are given a radius instead of a diameter in a problem the formula is changed to

$C =2\pi r$ which means 2×π×R

Again you just insert the information you are provided with into the equations

Also it helps to know $\pi = 3.14$

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Read the following excerpts from the New York Times (December 17, 1996) article Chance of Heart Attack Increases for Those Who S

nataly862011 [7]

Answer:

1. B

2. A

3. A

4. A

Step-by-step explanation:

Hello!

The study claimed that subjects who suffer depression are more likely to have a heart attack than those who are not depressed.

1551 persons were interviewed as part of the experiment and classified according to their answers in two groups "suffered depression" and "didn't suffer depression"

Afterward, the researchers looked up the medical history of all 1551 subjects and recorded how many of them had heard issues.

An observational study is one where the researcher only determines the variables he wants to study without controlling or influencing any factor of the population of interest. Because there is no interference from the researchers, there is a high risk that confounding factors may affect the conclusions of it. These studies are usually precursors to experimental tests, it allows the researcher to have an idea of the association between the two variables but you cannot establish causal relationships from them.

This is an example of an observational study, the researcher merely recorded the variables of interest without interfering with any aspects that may influence them. (For example diet or exercise habits of the subjects)

2. and 3.

The objective of the study is to determine if "depression" causes "disposition to heart attacks"

The explanatory variable is "depression status of the subject" since it is what is suspected to influence over the heart condition of said subject and "heart attack status" is the response variable.

Of the 1551 subjects originally studied, 444 were classified as depressed, of these 27 had heard attacks. You can calculate the "proportion of subjects that suffered depression and had heart attacks" as:

p': 27/444= 0.06 ⇒ 6%

Since this value was obtained from the sample, it is an estimation of the population parameter, also called statistic.

I hope it helps!

4 0

3 years ago

Can some one plzzz helps me with this

Sever21 [200]

No a repeating decimals have number repeating such as 555555.

6 0

3 years ago

Help pls it’s due soon make sure to follow the steps I don’t get it

amm1812

The final answer that i got from this was -x-13

6 0

2 years ago

A rectangle with an area of 5/8 ft² is dilated by a factor of 8. What is the area of the dilated rectangle?

gulaghasi [49]

Answer:

40 ft²

Step-by-step explanation:

Let the length of the original rectangle be L and original Breadth be B

it is given that the original area is 5/8 ft²

i.e.

Original Length x Original Breadth = Original Area, or,

LB = 5/8 ft² ------------------(1)

Given that the dilation factor is 8,

Hence,

New Length = 8L and New Breadth = 8B

THerefore,

New Area = 8L x 8B

= 64 LB (from (1) above , we know that LB = 5/8 ft², substitute into expression)

= 64 (5/8)

= 40 ft²

4 0

3 years ago

Find 1.47 divided by 3.5. Does the answer change if you use a different power of 10 to multiply the dividend and the divisor bef

MrRa [10]

<span>the answer to 1.47 divided by 3.5 is 0.42. When you use different power of 10 to multiply the dividend and the divisor, the answer changes to different multiples of 0.42 in terms of 10. The answer could be 0.042 or 4.2 etc depending on the power of 10 used to multiply the dividend and divisor.</span>

5 0

3 years ago