All categories

3 years ago

A dartboard has a diameter of 18 inches.What are its radius and circumference?

1 answer:

3 0

Diameter of the dartboard as given in the question = 18 inches
Then
Radius of the dartboard will be = 18/2 inches
 = 9 inches
We already know that
Circumference of a circle = 2πr
We also know that the value of π = 3.14159
Then
Circumference of the dartboard = 2 * 3.14159 * 9 inches
 = 56.548 inches
 = 56.55 inches
So the radius of the dartboard is 9 inches and the circumference of the dartboard is 56.55 inches. I hope the procedure is absolutely clear to you.

You might be interested in

Solve for w. 4 = 0.25(w-4.3)

Snezhnost [94]

W=20.3

solve what's in the parenthesis, move the terms, calculate, then divide both sides.

8 0

4 years ago

How much warmer is 82 than 40?

Lorico [155]

Answer:82 is 42 degrees warmer than 42

Step-by-step explanation:

42-82=42

6 0

3 years ago

Read 2 more answers

Suppose that the hourly wages of fast food workers are normally distributed with an unknown mean and standard deviation. The wag

Nutka1998 [239]

Answer: 1.303639

Step-by-step explanation:

The t-score for a level of confidence $(1-\alpha)$ is given by :_

$t_{(df,\alpha/2)}$ , where df is the degree of freedom and $\alpha$ is the significance level.

Given : Level of significance : $1-\alpha:0.80$

Then , significance level : $\alpha: 1-0.80=0.20$

Sample size : $n=40$

Then , the degree of freedom for t-distribution: $df=n-1=40-1=39$

Using the normal t-distribution table, we have

$t_{(df,\alpha/2)}=t_{39,0.10}=1.303639$

Thus, the t-score should be used to find the 80% confidence interval for the population mean =1.303639

8 0

3 years ago

Write as a polynomial (3p–1)(2p+5)–6p(p–2)

julsineya [31]

$\text{Simplify:}\\\\(3p-1)(2p+5)-6p(p-2)\\\\\text{Use FOIL:}\\\\6p^2+13p-5-6p(p-2)\\\\6p^2+13p-5-6p^2+12p\\\\\text{Combine like terms:}\\\\13p+12p-5\\\\\boxed{25p-5}$

8 0

3 years ago

The number line represents – 4 + 3)

zepelin [54]

Answer:

- 4 1/2 + 3 1/4

-9/2 + 13/4

the lcm is 4

-18/4 + 13/4

=-5/4

= -1 1/4

Step-by-step explanation:

7 0

3 years ago