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2 years ago

Given k(x)=4x+5, if k(x)=-3 find x

Mathematics

1 answer:

zvonat [6]2 years ago

4 0

Answer:

x=-5/7

Step-by-step explanation:

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Solve |2x - 2| < 8

Alex777 [14]

Answer:

Step-by-step explanation:

|2x - 2| < 8

it implies that

2x - 2 < 8

2x -2 + 2 < 8 + 2

2x < 10

x < 5

-(2x - 2) < 8

-2x + 2 < 8

-2x + 2 - 2 < 8 - 2

- 2x < 6

x > -3 ( the sense of the inequality reverse because I divided by minus)

The solution can be combine to

-3<x<5

4 0

3 years ago

Determine if the statement is true or false. If a linear system has the same number of equations and variables, then it must hav

lutik1710 [3]

Answer:

False

Step-by-step explanation:

Consider the equations with the same number of equations and variables as shown below,

Case 1

$x_{1} + x_{2} = 0\\x_{1} + x_{2} = 1$

This equation has no solution because it is not possible to have two numbers that give a sum of 0 and 1 simultaneously.

Case 2

$x_{1} + x_{2} = 1\\2x_{1} + 2x_{2} = 2$

This equation has infinitely many possible solutions.

Therefore it is FALSE to say a linear system with the same number of equations and variables, must have a unique solution.

5 0

3 years ago

Find y in terms with x Help me pleaseee thank uu:)

cestrela7 [59]

Answer:

y = 90 -5/2 x

Step-by-step explanation:

The angle on the left equals x+3x+x = 5x

The angle on the right equals 2y

The two angles are same side interior angles which are supplementary because the lines are parallel

5x+2y = 180

Solving for y

2y = 180-5x

Divide by 2

2y/2 = 180/2 -5x/2

y = 90 -5/2 x

4 0

2 years ago

Read 2 more answers

What rectangle shows the final image

frozen [14]

Is there an image attached?

6 0

3 years ago

Which of these is the algebraic expression for "3 times the sum of 2 and y?"

max2010maxim [7]

Answer:

the answer is 3(2+y)

Step-by-step explanation:

i commented that first it would not let me answer

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7 0

2 years ago

Read 2 more answers