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sergey [27]
3 years ago
6

How do you determine whether to use 22/7 or 3.14 for π ?

Mathematics
1 answer:
Korolek [52]3 years ago
6 0

Answer:

  Use the value the problem statement tells you. Otherwise, use a better approximation.

Step-by-step explanation:

π ≈ 3.141592653589793238... (a non-repeating infinite decimal)

3.14 = 3.14

22/7 = 3.142857142857_142857

355/113 = 3.14159292035... (a very long repeating decimal)

You can see that the third decimal place is wrong in both of your approximations. The last approximation shown has 7 good decimal digits. A good scientific or graphing calculator will have an internal value for pi that is good to 10 or 12 digits or more (preferably, at least 32 digits).

You should use a value for pi that has at least one more digit of accuracy than the number of significant digits in your answer.

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triangle DEF is a dilation of triangle ABC with scale factor 2. In triangle ABC, the largest angle measures 82°. What is the lar
Akimi4 [234]

Answer:

The largest angle measure in triangle DEF = 82°  

Explanation:

A dilation is a transformation that produces an image that is the same shape as the original, but is a different size.

So, the shape of the triangles ABC and DEF are the same.

Sine the shape is similar the angle of the dilated triangle and considered triangle are the same.

The largest angle measure in triangle DEF = The largest angle measure in triangle ABC

  The largest angle measure in triangle DEF = 82°      

4 0
3 years ago
Cost to store: $140<br><br> Markup: 25%
anastassius [24]
The actual cost to the store = $140
Percentage of markup = 25%
Amount of markup in cost = (25/100) * 140 dollars
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Then
Sell price in the store = (35 + 140) dollars
                                   = 175 dollars
So the sell price of the product at the store after addition of the markup price will be $175.
7 0
3 years ago
What is the value of x? 6+8x2=5x
Gala2k [10]

Answer:

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3 0
3 years ago
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The ratio of boys to girls in Mr. Hakeem's class is 64. If there are 18 boys, how many girls
Bad White [126]

Answer: C. 12 girls

Step-by-step explanation:

6 0
2 years ago
7.Sandy has a total of 35 coins in her money jar. If Sandy's jar contains only nickels and dimes and the value of all the coins
Mademuasel [1]

Answer: 35

Step-by-step explanation:

Let the number of nickels be x

Then the number of dimes, using

ONE PART = TOTAL MINUS OTHER PART,

is 35-x. ( hope this helps have a good day/night :)  )

7 0
2 years ago
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