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LiRa [457]
2 years ago
7

Find the area of the circle. use 22/7 for pie

Mathematics
1 answer:
kherson [118]2 years ago
7 0

Answer:  2464 in²

Step-by-step explanation: The formula for the area of a circle is

A = πr²

The given radius is 28 inches.

Square that 28 × 28 = 784 square inches.

Then multiply by pi.

22/7 × 784 = 2464 square inches.

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Use the equation to complete an algebraic proof that proves the answer is x = 7/6. Write your proof in your journal and upload y
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Answer:

Step-by-step explanation:

Show that if 3x – 7 = 5, then x = 4.

Here, our given statement is 3x – 7 = 5, and we're asked to prove x = 4.

x=4

Statements Reasons

1. 3x – 7 = 5 Given

2. 3x – 7 + 7 = 5 + 7 Addition of 7 to equation (1)

3. 3x + 0 = 5 + 7 Substitution of –7 + 7 = 0 into (2)

4. 3x = 5 + 7 Substitution of 3x + 0 = 3x into (3)

5. 3x = 12 Substitution of 5 + 7 = 12 into (4)

6. 3x⁄3 = 12⁄3 Dividing equation (5) by 3

7. x = 12⁄3 Substitution of 3x⁄3 = x into (6)

8. x = 4 Substitution of 12⁄3 = 4 into (7)

Is there such a thing as being too descriptive? Yep, and that was it, since over half the proof was devoted to telling the reader how to do arithmetic. We'll typically take numerical computation for granted, and write proofs like this:

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2 years ago
What is negative 32 equals six m minus two?
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The variable m should equal -5
6 0
3 years ago
Find the equation of a line in slope-intercept form, containing the points (9,2.6) and (8,2.2).
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5 0
2 years ago
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