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dolphi86 [110]
3 years ago
9

What are the roots of the polynomial equation? x2+x−72=0

Mathematics
1 answer:
Alika [10]3 years ago
8 0

Answer:

x(x-1)=72 x=9

Step-by-step explanation:

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3x+1+5x=7+15+7x what is x?
LenKa [72]

Answer: x=21

Step-by-step explanation:

To solve for x you must first combine you like terms on each side of the equal sign. So you problem will become 8x+1=22+7x. Then get your x on one side and your numbers on the other by taking the one away from the right side and 1 away from 22. Then take away 7 from the left side to cancel it out. Then take 7x away from 8x to leave you with x. making your answer x=21

3 0
3 years ago
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Find the value of x in each pair of similar figures​
LekaFEV [45]

Answer:

8

Step-by-step explanation:

the pair of triangles is showing a dilations with a scale factor of 2

6/3=2

so it gives us 4 as the before answer and 4x2=8 so x=8

5 0
2 years ago
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A bag contains 12 white and 8 red marbles. A marble is drawn. find the probability that the marble I) white, ii) red, iii)green,
Molodets [167]

Answer:

The odds would be in faver of the white marble.

Step-by-step explanation:

Hope that helps :)

3 0
3 years ago
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What is the value of<br> 3(1.5 - x) when x = 0.5?
Reika [66]

Answer:

3

Step-by-step explanation:

3 (1.5 - 0.5) = 3 (1) = 3 * 1 = 3. The value of the expression is 3.

Tell me if I'm wrong :)

5 0
2 years ago
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Find the equation of the line through point (3,−3) and parallel to y=3x−4. Use a forward slash (i.e. "/") for fractions (e.g. 1/
exis [7]

Answer:

y =3x - 12

Step-by-step explanation:

I'm fairly certain this is the answer.

Consider the point (3,-3). In terms of variables this is written (x,y).

Remember that the equation for slope is y = mx + b.

In that equation, "b" is your y-intercept, and "m" is your slope.

If 2 lines are parallel, they have the same slope but different y-intercepts. So you can use the slope from the equation y=3x-4 to find the parallel line. You can also plug in the values 3 and -3 to solve for b, our y-intercept.

If we set up the equation, we have -3 = 3(3) + b.

Now solve for b.

-3 = 9 + b

Combine like terms, so that -12 = b, and you have your y-intercept.

To create the equation, take out the coordinate pair that the line passes through, and only have the SLOPE and the Y-INTERCEPT showing in the equation.

Therefore, y = 3x - 12

5 0
3 years ago
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