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snow_tiger [21]
3 years ago
6

Help please! This is confusing me

Mathematics
1 answer:
lana66690 [7]3 years ago
5 0

Answer:The answer is $2.88 that is decreased from $57.60  and the answer for a is 0.57 is the decimal for 4/7 and the percentage of that is 57.14%.

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I NEED HELP ASAP!!!!!!
eduard

Answer:

I give bases example the triangle pyramid

7 0
3 years ago
I need these answers for the photos
Jobisdone [24]
That would be -2 1/2 , 3 1/2 
4 0
3 years ago
What is wrong with the following proof? Clearly we know that 1 does not equal 2. What rule of algebra did we break that makes th
Gnoma [55]

An attempt to divide by zero gives a contradictory result

A rule of algebra broken is <u>dividing by zero</u> (leading to a contradiction) and stating a finite result

Reason:

The given calculation is presented as follows;

1. a > 0, b > 0 given

2. a = b given

3. a·b = b²

4. a·b - a² = b² - a²

5. a·(b - a) = (b + a)·(b - a)

6. a = b + a

7. 0 = b

8. b = 2·b

9. 1 = 2

From line 4, the result are;

4. a·b - a² = b² - a² = 0

5. a·(b - a) = (b + a)·(b - a) = 0

On line 6, both sides where divided by (b - a) = 0, which should given an infinite result

Therefore, one rule of algebra broken is dividing by zero to get a finite result

In line 7, we have;

7. 0 = b

From 6. a = b + a, and a = b, we have;

8. b = 2·b

Therefore, line 9 should be;

9. 0 = 2·0; 0 = 0, given that we have;

1 × 0 = 0

2 × 0 = 0

∴ 1 × 0 = 2 × 0

However

  • 1 ≠ 2

In line 9., by dividing by b = 0, again, we have;

  • 9. 1 = 2 (a contradiction)

Therefore, one rule of algebra that is broken is <u>dividing by zero</u> and having a finite result

Learn more about the rules of algebra here:

brainly.com/question/11388301

5 0
3 years ago
I NEED HELP PLEASE, THANKS!
Talja [164]

The amount of lines of symmetry of a shape is equal to the number of sides that shape has.

A heptagon has 7 sides, so, there are 7 lines of symmetry.

Best of Luck!

5 0
3 years ago
Read 2 more answers
The perimeter of a parallelogram is 72 meters. The width of the parallelogram is 4 m less than its length. find the link and the
AlladinOne [14]
The width is 16 and the length is 20
8 0
3 years ago
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