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3 years ago

3. Find the exact area and circumference of a circle whose diameter is 8 meters. Show your work.

Mathematics

1 answer:

zhenek [66]3 years ago

4 0

Answer:

area = 50.27

circumference = 25.13

Step-by-step explanation:

area

pi x radius²

pi x 4² = 50.27

circumference

pi x diameter = 8 pi

8 pi = 25.13

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9. What are the next 4 terms of this sequence? 1.25, 2.75, 4.25, 5.75,

Crank

Answer:

7.25, 8.75, 10.25, and 11.75

Step-by-step explanation:

every one is added by 1.50

1.25+1.50=2.75

5 0

3 years ago

If something is already a negative would i keep it a negative or change it to a positve

amid [387]

Change it into positive.... u have to change it so that that negative things would not harm u.....

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3 years ago

Suppose the line of best fit for some data points has a slope of 4.915. If the mean of the x-coordinates of the data points is 1

aleksley [76]

The y-intercept of the linear equation of best fit, considering the slope and the means, is of -60.428.

<h3>What is a linear function?</h3>

A linear function is modeled by:

y = mx + b

In which:

m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.

b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.

For a line of best-fit, the y-intercept is given by:

$b = \overline{y} - m\overline{x}$

The parameters in this problem are given as follows:

$m = 4.915, \overline{x} = 14.347, \overline{y} = 10.088$

Then:

$b = 10.088 - 4.915(14.347) = -60.428$

More can be learned about linear functions at brainly.com/question/24808124

#SPJ1

5 0

1 year ago

Divide using polynomial long division<br>(x3 + x2 - 9x - 6) ÷ (x2 - 9)

bixtya [17]

Step-by-step explanation:

hope my answer will help you

8 0

2 years ago

The distance a body falls from rest varies directly as the square of the time the body is falling. If a body falls 81 ft. in 3 s

svetlana [45]

Let the distance = D
Let the time taken = T
From the question, we are told that distance is directly proportional to the square of the time the body takes to fall,
that is, D = K *[T^2]
K is a constant and we have to find its value;
Using the value given in the question;
D = 81 feet
T = 3 seconds
From our original equation,
K = D/ [T^2] = 81/3^2 = 81/9 = 9.
Therefore, K = 9
To find the distance through which the body fall in 7 seconds, we have,
K = 9
T = 7 seconds
D = K * [T^2]
D = 9 * [7*2] = 9 * 49 = 441.
Therefore, the body will fall through a distance of 441 feet in 7 seconds.

5 0

3 years ago

Read 2 more answers