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sdas [7]
3 years ago
7

Find the area of a circle, in terms of pi, if the radius is 20 ft.

Mathematics
1 answer:
arlik [135]3 years ago
8 0
Area of circle= π·r² so, π·20²= π·400≡ 1256.637061
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HELP please.
Delvig [45]

Answer:

Q1: \frac{3}{4}

Q2: \frac{83}{100}

Step-by-step explanation:

Q1: 12 : 16 = 3 : 4 = \frac{3}{4}

Q2: 8.3 : 10 = \frac{83}{100}

3 0
3 years ago
Solve for x<br> (x/r)+(x/w)+(x/t)= 1
MissTica

<em>x</em>/<em>r</em> + <em>x</em>/<em>w</em> + <em>x</em>/<em>t</em> = 1

<em>x</em> (1/<em>r</em> + 1/<em>w</em> + 1/<em>t</em>) = 1

<em>x</em> = 1 / (1/<em>r</em> + 1/<em>w</em> + 1/<em>t</em>)

To make the solution a bit cleaner, multiply through the numerator and denominator by the LCM of each fraction's denominator, <em>rwt</em> :

<em>x</em> = 1 / (1/<em>r</em> + 1/<em>w</em> + 1/<em>t</em>) • <em>rwt</em> / <em>rwt</em>

<em>x</em> = <em>rwt</em> / (<em>rwt</em>/<em>r</em> + <em>rwt</em>/<em>w</em> + <em>rwt</em>/<em>t</em>)

<em>x</em> = <em>rwt</em> / (<em>wt</em> + <em>rt</em> + <em>rw</em>)

5 0
3 years ago
Which of the following values of m will result in a true statement when substituted into the given equation?
Schach [20]

Answer:

Answer is C 4.1.

hopefully that helps :3

6 0
2 years ago
Read 2 more answers
Hellllllp please with Kahn academy
Veseljchak [2.6K]
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These are the answers in order
4 0
3 years ago
Read 2 more answers
According to the empirical rule, if the data form a "bell-shaped curve" (normal distribution), approximately what percent of the
Ann [662]

Answer: B. 95.0

Step-by-step explanation:

In statistics , the famous empirical rule says that " if the data is normally distributed then 68% of the observations will be contained within \pm1 standard deviations from the arithmetic mean, 95% of the observations will be contained within \pm2 standard deviations from the arithmetic mean and 99.7% of the observations will be contained within \pm3 standard deviations from the arithmetic mean".

Hence, B is the correct answer.

3 0
3 years ago
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