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4 years ago

NEED THE ANSWER QUICK PLS 100 POINTS

Mathematics

2 answers:

Olegator [25]4 years ago

5 0

Hello from MrBillDoesMath!

Answer:

x = 2

Discussion:

From the attached graph the intersection point appears to be x = 2. Let's prove that.

2x - 1 = -x + 5 => (add "x" to each side)

2x + x -1 = -x + x + 5 =>

3x -1 = 5 => (add "1" to both sides)

3x -1 + 1 = 5 + 1 =>

3x = 6 =>

x = 6/3 = 2

Thank you,

MrB

vodomira [7]4 years ago

5 0

Answer:

x=2

Step-by-step explanation:

i took the test

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PLEASE HELP! Thank you!

Lilit [14]

T⁻¹ is the inverse function of T.
To get the inverse function, replace x with y and y with x.
So T<span>⁻¹(x, y): (x + 2, y - 7)</span>

7 0

3 years ago

If the ratio of the length of segment AC to the length of segment CB is 3:1, what is the y-coordinate of point C?

Yuki888 [10]

Answer:

The coordinates of point C are (8,8.5)

Step-by-step explanation:

The picture of the question in the attached figure

Let

$(C_x,C_y)$ ----> coordinates of point C

we have that

The horizontal distance AB is equal to

$AB_x=10-2=8\ units$

The vertical distance AB is equal to

$AB_y=10-4=6\ units$

Find the horizontal coordinate of point C

we know that

$\frac{AC}{CB}=\frac{3}{1}$

$\frac{AC_x}{CB_x}=\frac{3}{1}$

$AC_x=3CB_x$ ----> equation A

$AC_x+CB_x=8$ ----> equation B

substitute equation A in equation B

$3CB_x+CB_x=8$

$4CB_x=8\\CB_x=2$

$AC_x=3(2)=6$

The x-coordinate of point C is equal to the x-coordinate of point A plus the horizontal distance between the point A and point C

$C_x=A_x+AC_x=2+6=8$

Find the vertical coordinate of point C

we know that

$\frac{AC}{CB}=\frac{3}{1}$

$\frac{AC_y}{CB_y}=\frac{3}{1}$

$AC_y=3CB_y$ ----> equation A

$AC_y+CB_y=6$ ----> equation B

substitute equation A in equation B

$3CB_y+CB_y=6$

$4CB_y=6\\CB_y=1.5$

$AC_y=3(1.5)=4.5$

The y-coordinate of point C is equal to the y-coordinate of point A plus the vertical distance between the point A and point C

$C_y=A_y+AC_y=4+4.5=8.5$

therefore

The coordinates of point C are (8,8.5)

5 0

3 years ago

14.7 + 28.9 hi hi hi hi hi hi hi

enot [183]

Answer:

43.6

Step-by-step explanation:

have a great day

6 0

3 years ago

Read 2 more answers

2 Points

noname [10]

Answer:

Step-by-step explanation:

The symbol between JK and LM mean that they are perpendicular, it is, that at their intersection 90 degrees angles are formed (those are right angles). So, the correct option here is option B. JK and LM meet at a right angle.

Here I attach a dray of how an intersection like this must look like. I hope it is helpful for you. In the draw four right angles are formed, however, this is not necessary, coul be only one or two depending on the length of the lines segments.