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2 years ago

What is 8-4-5=-2-10+8

Mathematics

1 answer:

Rudiy272 years ago

5 0

Answer:

Step-by-step explanation:

$8-4x-5=-2x-10+8x\qquad\text{combine like terms}\\\\-4x+(8-5)=(-2x+8x)-10\\\\-4x+3=6x-10\qquad\text{subtrac 3 from both sides}\\\\-4x+3-3=6x-10-3\\\\-4x=6x-13\qquad\text{subtract}\ 6x\ \text{from both sides}\\\\-4x-6x=6x-6x-13\\\\-10x=-13\qquad\text{divide both sides by (-10)}\\\\\dfrac{-10x}{-10}=\dfrac{-13}{-10}\\\\x=1.3$

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What's the answer? I need help!

Juli2301 [7.4K]

Answer:

<h2>I can do algebra forever</h2>

First we can use distributive property. 2a-10 = 6. So we add 10 on both sides and get 2a=16. Then we divide both sides by 2 so we get a = 8. Therefore proved algebraically that a = 8. I can always do algebra. Feel free to keep asking questions like these. Well feel free to ask any question because this is brainly.

<h2>Answer is a = 8, 8 is answer</h2><h2></h2>

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3 years ago

Read 2 more answers

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EleoNora [17]

Answer:

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2 years ago

I need help answering the question in the picture provided

adoni [48]

answer:

(a).

Equation of circle is x² + y² - 25 = 0

(b).

(-5, 0) » yes

(√7, 1) » no

(-3, √21) » no

(0, 7) » no

Step-by-step explanation:

(a).

If centred at origin, centre is (0, 0)

General equation of circle:

${ \boxed{ \bf{ {x}^{2} + {y}^{2} + 2gx + 2fy + c = 0}}}$

but g and f are 0:

${x}^{2} + {y}^{2} + c = 0 \\ but : \\ c = {g}^{2} + {f}^{2} - {r}^{2} \\ c = { - 25}$

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2 years ago

Use the distance formula to find the distance if point a is 3,4 and point b is 1,2

Fed [463]

Answer:

square root of 8

Step-by-step explanation:

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3 years ago

Suppose that a simulation with a six-sided number cube provided these results during testing.

lyudmila [28]

Theoretical probability:
1 ... (16 and 2/3) %
2 ... (16 and 2/3) %
3 ... (16 and 2/3) %
4 ... (16 and 2/3) %
5 ... (16 and 2/3) %
6 ... (16 and 2/3) %

Experimental results:
1 ... 18
2 ... 16
3 ... 16
4 ... 17
5 ... 16
6 ... 17

The total number of rolls in the experiment was

(18 + 16 + 16 + 17 + 16 + 17) = 100

so the expected frequency for each outcome was 16-2/3 times,
and the SIMULATION probabilities were

1 ... 18%
2 ... 16%
3 ... 16%
4 ... 17%
5 ... 16%
6 ... 17%

To me, this looks fantastically close. The cube
could hardly be more fair than it actually is.

8 0

3 years ago