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Eva8 [605]
3 years ago
11

Solve 2-3x=-x-8 i need help on this question i cant solve this

Mathematics
1 answer:
Nikitich [7]3 years ago
4 0

Answer:

x=5

Step-by-step explanation:

We start by adding 3x to both sides, giving 2-3x+3x=-x+3x-8, which after simplifying gives 2=2x-8.

We then add 8 to both sides, giving 2+8=2x-8+8, which after simplifying gives 10=2x.

We can then divide both sides by 2, giving 10/2=2x/2, which after simplifying gives 5=x, or x=5. So, x is 5.

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NEED HELP ASAP PLEASE!!
qwelly [4]

Option D:

$y=\frac{5x-2}{x}

Solution:

Given function:

$y=\frac{-2}{x-5}

To find the inverse of the function.

<u>Inverse of a function:</u>

<em>If a function f(x) is mapping x to y, then the inverse function of f(x) maps y back to x.</em>

$y=\frac{-2}{x-5}

Interchange the variables x and y.

$x=\frac{-2}{y-5}

Now, solve for y.

Multiply both sides by (y - 5).

$x(y-5)=-\frac{2}{y-5}(y-5)

Cancel the common factors, we get

x(y-5)=-2

Divide by x on both sides.

$y-5=-\frac{2}{x}

Add 5 on both sides.

$y=-\frac{2}{x}+5

$y=-\frac{2}{x}+\frac{5}{1}

To make the denominator same, multiply the 2nd term by \frac{x}{x}.

$y=-\frac{2}{x}+\frac{5x}{x}

$y=\frac{-2+5x}{x}

$y=\frac{5x-2}{x}

Option D is the correct answer.

8 0
3 years ago
The angle of a quadrilateral are A.P and the common difference is 10°. find the angles.
xxMikexx [17]

Step-by-step explanation:

So the Ap will be x,x+10,x+20,x+30

Sum of the angles of a quadrilateral is 360

x+x+10+x+20+x+30=360

4x+60=360

4x=300

x=75

So the angles are 75,85,95,105

4 0
3 years ago
Help me please with 1-8
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8 0
3 years ago
Please help! Will mark the brainliest!
NikAS [45]
Interval notation uses parenthesis ( or ) for points that are not included in the function (open circle) and brackets [ or ] for points that are included in the function (filled in circle).

Remember that the domain for a function is the range of x-values in a function.

Interval notation includes the numbers at the each end of a continuous function. For function F, the leftmost x-value is 0. The rightmost x-value is 8. Both points at x = 0 and x = 8 are included in the function (filled in circles), so you would use the brackets. The entire function is continuous between those two points.

That means the interval notation for the domain of F is:
[0, 8]

------

Answer: [0, 8]
7 0
3 years ago
At the beach, 14% of people are in the water and 35% are on the sand. If the rest are on the boardwalk, what percentage of peopl
pychu [463]

Answer:

51%

Step-by-step explanation:

Add 14% and 35% you get 49%

Take that away from 100%

7 0
3 years ago
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