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scoray [572]
4 years ago
13

How do you calculate pi? answer quick and u will get brainiest

Mathematics
2 answers:
CaHeK987 [17]4 years ago
8 0

Answer:

Make sure you are using a perfect circle.

Measure the circumference of a circle as accurately as you can.

Measure the diameter of the circle.

Use the formula.

For more accurate results, repeat this process with several different circles, and then average the results.

Step-by-step explanation:

AlexFokin [52]4 years ago
7 0

Answer:

3.14

Step-by-step explanation:

You calculate anything times 3.14

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A 20,000 deposit earns 4.8 interest for 4 years . What is the final account balance if the interest is compounded semiannually ?
Bad White [126]

Answer:

Semi-annually: A = $24 178.51

Quarterly:         A = $24 205.73

Monthly:           A = $24 224.13

Step-by-step explanation:

The formula for compound interest is

A = P(1 + r)ⁿ

A. Compounded semi-annually

Data:

P = $20 000

APR  = 4.8 %

t = 4 yr

Calculations:

n = 4 × 2 = 8

r = 0.048/2  = 0.024

A = 20 000(1+ 0.024)⁸

  = 20 000 × 1.024⁸

  = 20 000 × 1.208 926

  = $24 178.51

B. Compounded Quarterly

n = 4 × 4 = 16

r = 0.048/4  = 0.012

A = 20 000(1+ 0.012)¹⁶

  = 20 000 × 1.012¹⁶

  = 20 000 × 1.210 286

  = $24 205.73

C. Compounded monthly

n = 4 × 12 = 48

r = 0.048/12  = 0.004

A = 20 000(1+ 0.004)⁴⁸

  = 20 000 × 1.004⁴⁸

  = 20 000 × 1.211 207

  = $24 224.13

4 0
4 years ago
Winton was givin $14 to spend at a school fair he spent 3/7 playing games how much money is lift
Ksivusya [100]
<h3><u>Question:</u></h3>

Winton was given $14 to spend at a school fair he spent 3/7 playing games how much money is left

<h3><u>Answer:</u></h3>

Amount left with winton is $ 8

<h3><u>Solution:</u></h3>

Given that Winton was given $14 to spend at a school fair

He spent \frac{3}{7} playing games

To find: money left with Winton

From given information,

Money given to Winton = $ 14

Amount spent on games = \frac{3}{7}

Thus we can say,

Amount spend on games = \frac{3}{7} of total money he has

\rightarrow \frac{3}{7} \times 14 = 3 \times 2 = 6

Thus he spend $ 6 on playing games

<em><u>Money left with Winton:</u></em>

Money left = total money he had - money spent on playing games

Money left = 14 - 6 = 8

Thus amount left with winton is $ 8

3 0
3 years ago
Five quarts of oil and an oil filter cost $20.35. However, with a coupon, these items may be purchased for $4.43 less. What is t
kupik [55]
Hey there :)

5 quarts of oil and an oil filter - $20.35
With couple - $4.43 less
Final cost?

We subtract 4.43 from $20.35
Why? That's the expected amount [ without a coupon ]

 20.35
-  4.43
  15.92

The final cost will be $15.92
4 0
3 years ago
5/3y + 3= -8 PLEASE HELP DUE TOMORROW
daser333 [38]
Y=<span>−33/<span>5 
</span></span><span><span><span><span>53</span>y</span>+3</span>=<span>−8</span></span>Step 1: Subtract 3 from both sides.<span><span><span><span><span>53</span>y</span>+3</span>−3</span>=<span><span>−8</span>−3</span></span><span><span><span>53</span>y</span>=<span>−11</span></span>Step 2: Multiply both sides by 3/5.<span><span><span>(<span>35</span>)</span>*<span>(<span><span>53</span>y</span>)</span></span>=<span><span>(<span>35</span>)</span>*<span>(<span>−11</span>)</span></span></span><span>y=<span><span>−33</span><span>5</span></span></span>
7 0
4 years ago
Read 2 more answers
A number is doubled, then decreased by 13.7. The result is greater than 125.28. What is the smallest integer that satisfies this
Elina [12.6K]

Answer:

x > 69.49

Step-by-step explanation:

Step 1: Write out equation

2x - 13.7 > 125.28

Step 2: Add 13.7 to both sides

2x > 138.98

Step 3: Isolate <em>x </em>by dividing both sides by 2

x > 69.49

So <em>x</em> has to be greater than 70 in order to fit into the question context.

8 0
4 years ago
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