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Artemon [7]
4 years ago
7

What is the value of x?

Mathematics
1 answer:
Rus_ich [418]4 years ago
7 0

Answer:

x=9

Step-by-step explanation:

2x=x+9

Subtract x from both sides;

2x-x=x+9-x

Simplify;

x=9

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Is the following relation a function? (1 point)<br> 01) Yes<br> 2) No
ikadub [295]

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Step-by-step explanation:

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Work out 5 power 8 x 5 to power -2 divide by 5 to power 4
vampirchik [111]

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Step-by-step explanation:

6 0
3 years ago
How much work is done when you lift an object that weighs 150 N to a height of 5 meters​
lara31 [8.8K]

Answer:

Work done = 150 x 5  = 750 J

Step-by-step explanation:

Work done is the measure of energy transferred to an object when a force is added causing the object to move a distance in the direction of the force.

The equation for work done is force time the distance and is measured in Joules. Therefore the formula is W = F x D

work done (W) is measured in joules (J)

force (F) is measured in newtons (N)

distance (d) is in the same direction as the force and is measured in

metres (m)

W = F x D

w = 150 x 5

W = 750 J

7 0
3 years ago
WILL GIVE BRAINLIEST, 5/5 RATING, AND FAVORITE.
CaHeK987 [17]

Answer:

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

Step-by-step explanation:

Assume this is function is a straight line, consider the equation of the straight line: y=mx + c

To find the gradient of the equation, we use any two coordinates from the table. (x_1,y_1) = (6,-1)\\(x_2,y_2) =(2,1)

m = \frac{y_1 - y_2}{x_1 - x_2}\\\\m = \frac{1-(-1)}{2-6}\\\\m=\frac{2}{-4} \\\\m=- \frac{1}{2}

We substitute the value of m in the equation:

y =mx+c\\y = - \frac{1}{2} x + c\\\\

To find c, we use the leftover coordinates, (4,0) in the equation above:

y = -\frac{1}{2}x+c\\\\0 = -\frac{1}{2} \times 4+c\\\\0 = -2 + c\\\\c=2\\\\

Substitute this value of c in the equation to get the function:

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

4 0
3 years ago
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