All categories

3 years ago

F(x) = 2x - 4 find f( 5 )

Mathematics

2 answers:

posledela3 years ago

8 0

Answer:

f(5) = 2(5) - 4

f(5) = 10 - 4

f(5) = 6

Step-by-step explanation:

To find f(5), replace the x in the equation with its given value 5:

f(x) = 2x - 4

f(5) = 2(5) - 4

f(5) = 10 - 4

f(5) = 6

dem82 [27]3 years ago

4 0

When the problem gives you f(5), it is basically telling you to plug in 5 into x in the equation so ...

f(5) = 2(5) - 4
f(5) = 10 - 4
f(5) = 6

Hope this helps!

You might be interested in

Vlad1618 [11]

Answer:

$x = 17.5$

Step-by-step explanation:

Since the two triangles are similar, their corresponding side lengths would be proportional. Therefore:

$\frac{28}{16} = \frac{x}{10}$

Cross multiply

$x*16 = 10*28$

$16x = 280$

Divide both sides by 16

$x = \frac{280}{16}$

$x = 17.5$

7 0

3 years ago

24n divided by k If n= 6 and k =8

Evgen [1.6K]

Answer:

Step-by-step explanation:

24(6)/(8)=

simplify

192/8=24

5 0

3 years ago

Is x=4 a solution to the equation 6=x+2? Is it a solution to the inequality 2x≥9?

jek_recluse [69]

Answer:

Is x = 4 a solution to the equation 6 = x + 2? YES

Is x = 4 a solution to the inequality 2x ≥ 9? NO

Step-by-step explanation:

Is x = 4 a solution to the equation 6 = x + 2? YES

we cans solve the equation 6=x+2 by clearing for x:

6 = x + 2

we move the +2 on the right as a -2 to the left:

6 - 2 = x

4 = x

this way we find that indeed x = 4 is a solution to 6 = x + 2.

Is x = 4 a solution to the inequality 2x ≥ 9? NO

Let's solve the inequality by clearing for x:

2x ≥ 9

we move the 2 that is multiplying on the left to divide on the right side:

x ≥ 9/2

x ≥ 4.5 ⇒ <u>x must be greater than or equal to 4.5</u>

thus, <u>4 is not a solution to the inequality</u> because 4 is less than 4.5

3 0

4 years ago

Answer asap? my phones about to die!

mylen [45]

Answer:

Step-by-step explanation:

4+13=17

hope this helps :3

if it did pls mark brainliest

3 0

3 years ago

Read 2 more answers

Match the equations of the lines with their graphs.

xxMikexx [17]

Answer:

Step-by-step explanation:

1. y=2x-3

2. y=2x+3

3. y=-2x+3

4. y=-2x-3

3 0

3 years ago