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3 years ago

Algebraic equations

Mathematics

2 answers:

anzhelika [568]3 years ago

7 0

1) 2x + 9 = 2x -5

9 ≠ -5 ; No solution

2) 2x- 1 = x + 3

x = 4; One solution x = 4

3) x + 2 = x + 2

0 = 0; Identity (or all real numbers)

natali 33 [55]3 years ago

7 0

Answer:

1) No solution

2) One solution x = 4

3) All real numbers

Hope this helps :)

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The sum of two numbers is 12. The difference of the same two numbers is −4. Find the two numbers.

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Answer:

4 and 8

Step-by-step explanation:

Let 'a' represent one of the numbers. Then the other is 12-a, and their difference is ...

a - (12-a) = -4

2a = 8 . . . . add 12

a = 4 . . . . . divide by 2

12-a = 8 . . . . find the other number

The two numbers are 4 and 8.

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3 years ago

Read 2 more answers

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DochEvi [55]

Answer:

Step-by-step explanation:

Since the Y axis is the same you add 3+|-7|

so thats 10, which makes your answer 10

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3 years ago

5. Monday night it was -2.3°C. If the

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Answer:

-4.6

Step-by-step explanation:

-2.3-2.3=-4.6

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2 years ago

If the base of a Pyramid has an area of 144sq ft And if the slant higher of the pyramid is 10ft what would be the higher of the

pogonyaev

Answer:

the height of the pyramid is 8 ft

Step-by-step explanation:

Considering the base of the pyramid to be square whose area is 144 sq ft

This means the side of the base would be √144 = 12 ft.

Now, if you will imagine a pyramid we can easily observe that

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10^2 = H^2 +6^2

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3 years ago

Help quick please. Order the numbers from least to greatest.

Anastasy [175]

Answer:

$-2\frac{1}{4}$

Step-by-step explanation:

Mod of any number represents the absolute value of the number.

Therefore, $|-2\frac{1}{4}|=2\frac{1}{4}$ = 2.25

$-2\frac{1}{4}=-2.25$

$|1\frac{1}{4}|=1.25$

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$|-1\frac{3}{4}|=1\frac{3}{4}=1.75$

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Now we can arrange these numbers in ascending order.

-2.25 < -1.25 < 0.75 < 1.25 < 1.75 < 2.25

Therefore, $-2\frac{1}{4}$

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3 years ago