All categories

3 years ago

Someone please help me!

Mathematics

1 answer:

Katarina [22]3 years ago

5 0

Answer:

middle

Step by step explanation:

they are saying that f(x) = g(x)

so you will make the two functions equal to each other:

-1/2x - 2 = -1

this creates a linear equation , which you can solve to find x:

-1/2x - 2 = -1

-1/2x = -1 + 2

-1/2x = 1

-1x= 1 × 2

-1x = 2

x = -2

Now you know the value of x. the value of the y coordinate is already given: g(x) = -1. Hence, y = -1

because, g(x) = f(x) = y

(-2 , -1)

Look for the line that passes this coordinate; and it is the middle one.

Hope I was able to help. Good luck!

You might be interested in

What is the solution to the inequality -3x - 42 > 3

garik1379 [7]

$- 3x - 42 > 3\Leftrightarrow - 3x > 45\Leftrightarrow x < - 15$

4 0

4 years ago

What is the slope of the line passing through the points (-9,-3) and (7,-7)

Gnoma [55]

Answer:

The slope is $\frac{1}{4}$

Step-by-step explanation:

$\frac{Y_{2} -Y_{1} }{X_{2}-X_{1} }$

-7-(-3)= -7+3= 4

4/?

7-(-9)= 7+9 = 16

4/16=1/4

I hope this helps :-)

3 0

3 years ago

Julisa wants to find the perimeter of her bedroom that is similar to her brothers . If her brothers bedroom is 12ft long and 10f

IrinaK [193]

Answer:

The perimeter of her bedroom is 36.67 ft.

Step-by-step explanation:

Julisa's bedroom is similar to her brother's bedroom.

If the width of her bedroom is w and the length is l and her brother's room has width W and length L, then

$\frac{w}{W} = \frac{l}{L}$ ............. (1)

Now, the dimensions of her brother's bedroom are given by 12 ft long by 10 ft wide and her bedroom has length 10 ft.

Then, from equation (1) we get,

$\frac{w}{10} = \frac{10}{12}$

⇒ w = 8.33 ft.

Therefore, the perimeter of her bedroom is 2(8.33 + 10) = 36.67 ft. (Approximate) (Answer)

7 0

4 years ago

Solve systems of equations by algebraically x-2y=7 2x+5y =5

Natali [406]

Answer:

(5,-1) or x=5 y=-1

Step-by-step explanation:

I used the substitution method to solve this!

1. Pick one of your equations and solve for one of the variables. I chose the first equation and solved for x.

x-2y=7

(Move the -2y to the other side of the equation in order to get the x by itself. You do the opposite, so it becomes +2y.)

x=2y+7

2. Now take your second equation and plug in what you got for x into the x variable.

2(2y+7)+5y=5

(Multiple 2 by everything inside of the parentheses.)

4y+14+5y=5

(We want to get the y by itself, so move the 14 to the other side.)

4y+5y=-14+5

(Combine all the like terms.)

9y=-9

(Divide the 9 from the y. What you do to one side you must do to the other.)

y=-1

3. Since you have one variable solved for. Now take the first equation and plug in your y.

x-2(-1)=7

(Multiple -2 by -1)

x+2=7

(Move the 2 to the other side in order to get the x by itself.)

x=5

4. If needed, plug in your x and y values into the equations in order to check your answer.

Hope this could help!

8 0

3 years ago

Read 2 more answers

Still don’t get it idk lol

KonstantinChe [14]

Answer:

XQ = 12

Step-by-step explanation:

In this question it asks for XQ instead of x, but you need to find x first.

1. Find x.

XQ is half of MQ so this statement is true: 3x - 3 = 2(2x - 6)

Solve for x.

3x - 3 = 2(2x - 6)

Distribute 2.

3x - 3 = 4x - 12

Isolate x.

3x = 4x - 9

-x = -9

Divide -1 out.

x = 9

Now solve for XQ, which the equation is given.

XQ = 2(9) - 6

XQ = 18 - 6

XQ = 12

6 0

3 years ago

Read 2 more answers