4 years ago

What is the solution set of the x^2+x-2>o

Mathematics

1 answer:

VMariaS [17]4 years ago

6 0

Answer:

−

Factor

−

using the AC method.

Tap for more steps...

(

−

)

(

)

Set

−

equal to

and solve for

Tap for more steps...

Set

equal to

and solve for

Tap for more steps...

−

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-2x - y = -9<br><br>5x -2y = 18<br>Solve as a whole number

nexus9112 [7]

Answer:

x = 4, y = 1

(4, 1)

Step-by-step explanation:

-2x - y = -9

5x -2y = 18

-2x - y = -9

+2x +2x

-y = 2x - 9

/-1 /-1

y = -2x + 9

5x -2y = 18

5x - 2(-2x + 9) = 18

5x + 4x - 18 = 18

9x - 18 = 18

+ 18 + 18

9x = 36

/9 /9

x = 4

Now, we solve for y:

-2(4) - y = -9

-8 - y = -9

+ 8 +8

-y = -1

/-1 /-1

y = 1

(x, y) -> (4, 1)

Hope this helps!

6 0

3 years ago

Write as a monomial in standard form (3a)2

skelet666 [1.2K]

Answer:

I believe it's 6a

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3. How tall is Mekhi if his brother is x inches tall? Write an expression using the variable x.

Olenka [21]

Answer:

Can you sure a picture?

Step-by-step explanation:

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3 years ago

The coach of the track and field team is putting together groups of runners to run relays. Each group will need to run a race th

andrew11 [14]

Answer:

16 runner

Step-by-step explanation:

It is given that,

Each group will need to run a race that is 1/2 of a mile long. Each runner has to run 1/8 of a mile in the race.

Let there are x no of runners. ATQ,

$\dfrac{1}{8}x=\dfrac{1}{2}\\\\x=\dfrac{(1/2)}{(1/8)}\\\\x=16$

So, there are 16 runner that are needed for each relay race group.

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Ainat [17]

Answer:

Step-by-step explanation:

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