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Kamila [148]
4 years ago
15

The formula for the area of a circle is A=pir^2. Find the area of a circle with a diameter of 6.4 centimeters. Use a calculator

and round your answer to the nearest square centimeter.
Mathematics
1 answer:
Advocard [28]4 years ago
3 0
A=pi(3.2)^2= 32.1699087728
A=32cm^2
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Mom can make 10 brownies from a 12-ounce package. How many ounces of brownie mix would be needed to make 50 brownies?
arsen [322]

Answer:

60 ounces

Step-by-step explanation:

İf she can make 10 brownies with 12 ounce mix then

For 50 she would need 5 × 12 = 60 ounces

3 0
3 years ago
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Here are the dates of three pivotal female mathematicians: Sophie Germain (French) 1776-1831, Sonja Kowalevsky (Russian) 1850-91
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Sonja kowalevsky
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8 0
3 years ago
HELP Determining Similar Figures
cestrela7 [59]

Answer:

Step-by-step explanation:

Two figures are said to be similar if they are the same shape. In more mathematical language, two figures are similar if their corresponding angles are congruent , and the ratios of the lengths of their corresponding sides are equal.

4 0
3 years ago
7+6 (mod 5) =<br><br>2+1 (mod 5) =<br><br>20 (mod 11) =<br><br>35 (mod 11) =<br><br>20 (mod 11) =​
ValentinkaMS [17]

Answers:

  • 3
  • 3
  • 9
  • 2
  • 9

======================================

Explanation:

7+6 = 13. Divide this over 5 to get 13/5 = 2 remainder 3. The quotient 2 is something we don't care about. <u>We only worry about the remainder</u>. Therefore 7+6 = 3 (mod 5)

-------------

2+1 = 3 (mod 5) for similar reasoning as above. 3/5 = 0 remainder 3.

-------------

20 = 9 (mod 11) since 20/11 = 1 remainder 9. Imagine you had 20 cookies and 11 friends. Each friend would get 1 whole cookie (quotient) and there could be 9 left over (remainder).

-------------

35/11 = 3 remainder 2

Or you could use repeated subtraction like so to find the remainder

35-11 = 24

24-11 = 13

13-11 = 2

The last result (2) is smaller than 11, so we stop here and this is the remainder.

Therefore, 35 = 2 (mod 11)

--------------

Here's another way to think of it. Consider you have $35 in your pocket. Let's say a store is selling trinkets for $11 each. We can pose these key questions:

  • What is the most number of trinkets you can buy?
  • If you buy that max amount, how much will you have left over?

The answer to the first question is 3 trinkets because 3*11 = 33 dollars is under the budget of $35. The amount left over is 35-33 = 2 dollars which is the remainder. It's not larger than 11, so we cannot buy any more trinkets at this point.

5 0
3 years ago
The price of a car is £12500 reduced to £11625.<br><br> What's the percentage now?
maria [59]

Answer: The percentage reduction will be 7%.

Step-by-step explanation:

The following information can be depicted:

Price of new car = 12500

New price after the reduction =11625

The percentage reduction will be:

= [(12500 - 11625) / 12500] × 100

= 875/12500 × 100

= 7%

Therefore, based on the computation that has been done above, the percentage reduction will be 7%.

8 0
3 years ago
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