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3 years ago

9

What are some ways we can tell that 7x + 2 is not equivalent to 9x?

1 answer:

vlabodo [156]3 years ago

5 0

Answer:

To determine if two fractions are equivalent, cross multiply. To cross multiply, you multiple the numerator of the first fraction by the denominator of the second. Then you multiply the denominator of the first fraction by the numerator of the second. If the two numbers are equal, the fractions are equivalent

Step-by-step explanation:

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Which property of real numbers is shown below?

marusya05 [52]

Answer:

the answer is associative property of addition

Step-by-step explanation:

the things is no matter how you switch out the numbers you will have the same income.

8 0

3 years ago

How to solve this system of equal: x+y+z=1;x^2+y^2+z^2=1

swat32

There are infinitely many solutions.

Algebraically, we can eliminate $z$ and try to solve for $x,y$ :

$x+y+z=1\implies z=1-x-y$

Then

$x^2+y^2+(1-x-y)^2=1$

$\implies x^2+y^2+1-2x+x^2-2y+y^2+2xy=1$

$\implies x^2-x+y^2-y+xy=0$

which is the equation of an ellipse.

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4 years ago

Did I do it right??? Please respond.

Sedaia [141]

Fraid not. This time, you did it left.

The tool to use is "Vertical" angles are equal. (They don't add up to 180 degrees.)

3y + 120 = 5y + 100

(you should fill in the missing steps)

y = 10°

The upper/lower pair of vertical angles are both 150°.

.

2x = 6x - 60

(you should fill in the missing steps)

x = 15°

The left/right pair of vertical angles are both 30°.

It's any two angles NEXT TO each other that add up to 180°.

Notice here that (150° + 30°) = 180° .

8 0

3 years ago

Based on the results shown in the table, how many white marbles would one expect to draw in a total of 50 draws? (hint:set up a

Dovator [93]

The answer to your question is 10

8 0

3 years ago

What two numbers multipy to 24 but add up to -4

Nostrana [21]

Answer:

none, it isn't possible.

6 0

3 years ago