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Gnom [1K]
3 years ago
8

Symbolic 2 what is the area of a cirle of radius r? use r for the radius and pi for π. for help on entering a symbolic answer cl

ick on the symbolic formatting help link below.
Mathematics
1 answer:
Verdich [7]3 years ago
3 0
The area (A) of a circle of radius r is given by
  A = pi×r²
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What is the solution if any, to the inequality 3-l4-nl>1?
atroni [7]

Answer:

The solution to the inequality is all real values of n that respect the following condition: 2 < n < 6

Step-by-step explanation:

First, we need to separate the modulus from the rest of equation. So

3-l4-nl>1

-|4-n|>1-3

-|4-n|>-2

Multiplying everything by -1.

|4-n|<2

How to solve:

|x| < a means that -a<x<a

In this question:

|4-n|<2

-2<4-n<2

This means that:

4 - n > -2

-n > -6

Multiplying by -1

n < 6

And

4 - n < 2

-n < -2

Multiplying by 1

n > 2

Intersection:

Between n > 2 and n < 6 is 2 < n < 6

So the solution to the inequality is all real values of n that respect the following condition: 2 < n < 6

8 0
2 years ago
Write 7.75 x 10^-3 in standard notation​
Natasha_Volkova [10]

Answer:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

7.75 × 10^−3

4 0
3 years ago
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53/7 as a mixed number
marysya [2.9K]
Its already an improper fraction.
If you mean mixed number it would be 7 4/7.
Hope this helps!:)
7 0
3 years ago
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How to find the perimeter of a parallelogram
jonny [76]
Perimeter is the sum of all the sides of the shape

do you know the length of each side of the parallelogram?

4 0
2 years ago
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Noon to 3:05 elapsed time
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Noon is 12, I'm guessing you mean both of these at am, or both at pm. 12-3 is 3 hours, but there's 5 extra, so the elapsed time would be 3:05.
6 0
2 years ago
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