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4 years ago

What is the solution set for the inequality?

Mathematics

1 answer:

Sliva [168]4 years ago

3 0

Answer:

the answer is the 2nd one from my point of view u will understand so the solution set for the quality is the 2nd answer either way or

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How do I factor the following equation in the link? It has been factored, but I need to know the steps.

Vlad [161]

Given

$2x^2-x-3=0$

How to factor

Solution

Step 1

Multiply the first and last costant

$-3\times2x^2=-6x^2$

Step 2

Write out all the pair factors of -6x^2

$\begin{gathered} -6x^2=-6x\text{ and x} \\ -6x^2=-x\text{ and 6x} \\ -6x^2=\text{ -3x and 2x} \\ -6x^2=\text{ -2x and 3x} \end{gathered}$

Step 3

Check for the pair, such that when you add you will get -x

$\begin{gathered} it\text{ is } \\ -3x+2x=-x \\ \therefore-3x,\text{ 2x} \end{gathered}$

Step 4

Replace -x with -3x+2x in the equation

$2x^2-3x+2x-3=0$

Step 5

Put them into brackets Since + is at the center no stress.

$(2x^2-3x)+(2x-3)=0$

Step 6

Factor out what is common in the bracket

$x(2x^{}-3)+1(2x-3)=0$

Step 7

What is in the bracket are the same, pick one

$\therefore(2x-3)(x+1)=0_{}$

7 0

1 year ago

The sum of two numbers is 53 and the difference is 19. What are the numbers?

Nostrana [21]

Let x be the smaller number.
So the bigger number is x+19 (Their difference is 19)
Their sum: 53

8 0

3 years ago

What number do you need to multiply by 100 to get the same result as 16.2 divided by 10? Explain. I will leave a picture if need

vovikov84 [41]

16.2/10 = 1.62

0.0162x100= 1.62

0.0162 is your answer.

7 0

3 years ago

Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.

My name is Ann [436]

$x = 2 \\ y = 7$

is the answer to:

$y = 11 - 2x \\ 4x - 3y = - 13$

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$x = 5 \\ y = 2$

is the answer to:

$2x + y = 12 \\ x = 9 - 2y$

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$x = 3 \\ y = 5$

is the answer to:

$2x + y = 11 \\ x - 2y = - 7$

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$x = 7 \\ y = 3$

is the answer to:

$x + 3y = 16 \\ 2x - y = 11$

3 0

3 years ago

HELP HELP HELP HELP 13 Points

nirvana33 [79]

The answer is 22 years old.
You set p = 2d then you solve for D. Then you do 2+p and set that equal to 3(d-5+2) then you solve. You keep going until you get P's age which is 22 and annie's age is 6.

6 0

3 years ago

Read 2 more answers