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balandron [24]
3 years ago
6

Which of the following is not equivalent to the formula for the circumference of a circle, C = 2r ? Cr = 2

Mathematics
2 answers:
ikadub [295]3 years ago
8 0
C=2r because the circumference and the radius arent together its not measured together.
Lisa [10]3 years ago
3 0
The first thing you should know in this case is that the circumference of a circle is given by:
 C = 2 * pi * r
 Where,
 r: radius of the circle.
 We have then that the following equation is not equivalent to the circumference of the circle:
 Cr = 2
 Answer:
 
The following is not equivalent to the formula for the circumference of a circle:
 
Cr = 2
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Answer:

3a) 5/45 you divide by 5

3b) 6/7 you divide by 2

3c) 2/7 you divide by 9

3d) 2/5 you divide by 9

4a) 6

4b) 1 <u>1/4</u> or 5/4 (both are correct)

4c) 3 <u>1/2</u> or 3 <u>3/6</u> (both are correct)

4d) 5 <u>1/8</u>

The fraction bar tells you to divide the top number by the bottom number.

Step-by-step explanation:

For 3a through 3d, you just use the fraction that has a missing number, and if the missing number is at the bottom, use the top number and devide it by the other top number that the fraection is equal to.

For 4a through 4b, devide the top the bottom number

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3 years ago
Rashawn puts $550 in an account earning 8% simple interest annually. How much will he have in his account after 6 years? i need
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5 0
3 years ago
Help.....................
eduard

Answer:

Answers in Explanation

Step-by-step explanation:

First Question:

\sqrt{100} + [18 ÷ 3 x 4 - 15] - (60 - 7^2 - 1)

\sqrt{100} + [24 - 15]  - (60 - 49 - 1)

\sqrt{100} + 9 - 10

10 + 9 - 10

<u>Answer = 9</u>

Second Question:

5x + 2x = 7x

5x^2 + 3x^2 = 8x^2

2x + 3x - x = 4x

2x + 3y + x + y = 3x + 4y

9x - 6x = 3x

-7y + 3x + 4x + 3y = 7x - 4y

-7x^2 + 2x^2 + 9x^2 = 8x^2

(3x^2 + 5x + 4) - (-1 + x^2) = 2x^2 + 5x + 5

(3 + 2x - x^2) + (x^2 + 8x + 5) = 10x + 8

(3x - 4) - (5x + 2) = -2x - 6

(2x^2 + 5x + 3) - (x^2 - 2x + 3) = x^2 + 7x

(3x^2 + 2x - 5) - (2x^2 - x - 4) = x^2 + 3x - 1

Third Question:

17x + 2y

(5x + 12y) + (3x + y) = 8x + 13y

17x - 8x = 9x

2y - 13y = -11y

Answer: 9x - 11y

7 0
3 years ago
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