3 years ago

Helppp pleasee ........

Mathematics

2 answers:

I am Lyosha [343]3 years ago

4 0

Y=3
to solve this you just substitute 4 in for x into the equation and solve for y. since negative 3 plus 7 is 4, y=4

amid [387]3 years ago

4 0

Answer:

y=3

Step-by-step explanation:

y = - x +7

x=4

so y = -4 +7

y = 3

You might be interested in

Ax + z = aw - y Solve for a

olga2289 [7]

Ax=aw-z-y
divide by x
a=awx-z-y
a=awx-zy

8 0

3 years ago

If a rectangle has a base of 6 units, and a height of 8 units, what is its area?

Morgarella [4.7K]

Answer:

a=48 units^2

Step-by-step explanation:

The area of a rectangle can be found using:

a=bh

We know the base is 6, and the height is 8, so we can substitute them in

a=6*8

a=48

Area uses units squared, so,

a=48 units^2

4 0

4 years ago

Read 2 more answers

Which expression is the same as 5 + 3?

dimaraw [331]

Answer:

Step-by-step explanation:

5 + 3 = 8

Hope that helps!

-Sabrina

5 0

3 years ago

The slope of a horizontal line is

Ne4ueva [31]

The slope of the line is zero.

6 0

3 years ago

Read 2 more answers

Find the inverse of f(x)=(x−5)/(−4x−2)

uysha [10]

Answer:

${f}^{ - 1} (x)= \frac{ 5 - 2x }{ 4x + 1}$

Step-by-step explanation:

The given rational function is

$f(x) = \frac{x - 5}{ - 4x - 2}$

Let

$y = \frac{x - 5}{ - 4x - 2}$

Interchange x and y

$x= \frac{y- 5}{ - 4y - 2}$

Cross multiply

$x( - 4y - 2)= y- 5$

Expand

$- 4xy - 2x= y- 5 \\ - 4xy - y= 2x - 5 \\y( - 4x - 1)= 2x - 5$

Solve for y;

$y= \frac{ 2x - 5}{ - 4x - 1}$

$y= \frac{ 5 - 2x }{ 4x + 1}$

Therefore

${f}^{ - 1} (x)= \frac{ 5 - 2x }{ 4x + 1}$

7 0

3 years ago