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3 years ago

what is the circumference of a circle that has a radius of 8 units use 3.14 (pie) and round to the nearest hundredth

Mathematics

1 answer:

SashulF [63]3 years ago

5 0

Remember that the formula for the circumference, $C$ , of a circle is:

$C = d \pi$

In this case, we are not given the diameter. However, remember that the diameter is equivalent to two times the radius of a circle. Thus,

$d = 2 \cdot 8 = 16$ ,

and we can say the circumference of our circle is:

$C = 16 \cdot 3.14 = 50.24 \,\textrm{units}$

The circumference of our circle is 50.24 units.

<em>Also, a little side note not relating to the question:</em>

<em>Remember that $\pi$ is spelled as "pi" not "pie." Pie is a dessert, while pi is a mathematical constant.</em>

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What does a residual value of –4.5 mean in reference to the line of best fit?

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Answer:

The residual value is the difference between the observed value (from the scatter plot) and the predicted value (from the line of best fit).

Step-by-step explanation:

The residual value is the difference between the observed value (from the scatter plot) and the predicted value (from the line of best fit).

Residual Value = Observed Value - Predicted Value

<em>Since the residual value of -4.5 is negative, we can say the predicted value is larger than the observed value. In other words, the line of best fit is "above" the scatter plot point in that specific point.</em>

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3 years ago

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Jeremy's password is the combination of letters and numbers shown below. He

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numbers:letters

5:4 (numbers:letters form)

Step-by-step explanation:

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3 years ago

Plot and label the temperatures on a number line. You can create it by using a drawing program, by drawing it by hand and sendin

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The temperatures can be plotted and labelled on a number line as shown in the image attached below (see attachment).

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Temperatures above 0°F will be located above 0, while temperatures below 0°F will be located below 0.

Given the following temperatures: <em>-3.5℉ , 5℉, 1.5℉, -0.5℉, -2℉, 2.5℉ and -4℉</em>

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2 years ago

A box contains four blue and eight red balls. Jim and Jack start drawing balls from the box, respectively, one at a time, at ran

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Answer:

the probability that Jack draws the blue ball is 0.38539

Step-by-step explanation:

Given the data in the question;

box contains

blue balls = 5

red balls = 8

Jim and Jack start drawing balls from the box, respectively, one at a time, at random, and without replacement

Now,

on the first attempted;

⇒ ( 8/13) × ( 5/12) = 10/39

on the second attempt;

⇒ ( 8/13 ) ( 7/12) ( 6/11 ) ( 5/10 ) = 14/143

on the third attempt;

⇒ ( 8/13 ) ( 7/12) ( 6/11 ) ( 5/10 ) ( 4/9 ) ( 5/8 ) = 35/1287

on the fourth attempt;

⇒ ( 8/13 ) ( 7/12) ( 6/11 ) ( 5/10 ) ( 4/9 ) ( 3/8 ) ( 2/7 ) ( 5/6 ) = 5/1287

so we add everything;

⇒ 10/39 + 14/143 + 35/1287 + 5/1287

= 0.38539

Therefore, the probability that Jack draws the blue ball is 0.38539

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3 years ago

Which of the following equations is equivalent to S=pi r^2 h

lara31 [8.8K]

The equation that is equivalent to S=pi r^2 h is h = S/pir^2

<h3>Subject of formula</h3>

This is a way of representing a variable with another. Given the equation

S=pi r^2 h

We are to make 'h" the subject of the formula.

Divide both sides by pir^2

S/pir^2 =pi r^2 h/pir^2

h = S/pir^2

Hence the equation that is equivalent to S=pi r^2 h is h = S/pir^2

Learn more on subject of formula here: brainly.com/question/657646

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2 years ago