All categories

2 years ago

2(x-+2)+4=6x-4(-1+x)

Mathematics

2 answers:

sertanlavr [38]2 years ago

8 0

2x-4+4=6x+4-4x

2x=2x+4

c there is no solution

dmitriy555 [2]2 years ago

3 0

2(x+2)+4=6x-4(-1+x)

2x+4+4=6x+4-4x

2x+8=2x+4

8=4

C; there is no solution

You might be interested in

Can I rotate, translate, or reflect a figure if one figure is larger than the other figure?

lisov135 [29]

Answer:

translate

Step-by-step explanation:

3 0

2 years ago

MOre geometry. Sorry i struggle.

il63 [147K]

1/2 (Base x height) = area

1/2 (4*x)=10

2x=10

X=5

The height is 5 units

5 0

2 years ago

Which is the inverse of the function a(d)=5d-3? And use the definition of inverse functions to prove a(d) and a-1(d) are inverse

Drupady [299]

Answer:

$a'(d) = \frac{d}{5} + \frac{3}{5}$

$a(a'(d)) = a'(a(d)) = d$

Step-by-step explanation:

Given

$a(d) = 5d - 3$

Solving (a): Write as inverse function

$a(d) = 5d - 3$

Represent a(d) as y

$y = 5d - 3$

Swap positions of d and y

$d = 5y - 3$

Make y the subject

$5y = d + 3$

$y = \frac{d}{5} + \frac{3}{5}$

Replace y with a'(d)

$a'(d) = \frac{d}{5} + \frac{3}{5}$

Prove that a(d) and a'(d) are inverse functions

$a'(d) = \frac{d}{5} + \frac{3}{5}$ and $a(d) = 5d - 3$

To do this, we prove that:

$a(a'(d)) = a'(a(d)) = d$

Solving for $a(a'(d))$

$a(a'(d)) = a(\frac{d}{5} + \frac{3}{5})$

Substitute $\frac{d}{5} + \frac{3}{5}$ for d in $a(d) = 5d - 3$

$a(a'(d)) = 5(\frac{d}{5} + \frac{3}{5}) - 3$

$a(a'(d)) = \frac{5d}{5} + \frac{15}{5} - 3$

$a(a'(d)) = d + 3 - 3$

$a(a'(d)) = d$

Solving for: $a'(a(d))$

$a'(a(d)) = a'(5d - 3)$

Substitute 5d - 3 for d in $a'(d) = \frac{d}{5} + \frac{3}{5}$

$a'(a(d)) = \frac{5d - 3}{5} + \frac{3}{5}$

Add fractions

$a'(a(d)) = \frac{5d - 3+3}{5}$

$a'(a(d)) = \frac{5d}{5}$

$a'(a(d)) = d$

Hence:

$a(a'(d)) = a'(a(d)) = d$

7 0

2 years ago

3. B С A D E How many rays intersect at point o?

swat32

Oneeeeeeeeeeeeeeeeeee

8 0

2 years ago

Read 2 more answers

Pls, help me. I know this is a lot to ask but... I rlly need help. I will mark you brainliest, and give a little extra points ou

tresset_1 [31]

I don’t know the answer yet, I’ll reply to my comment with it, but merry Christmas to you too!!

5 0

2 years ago

Read 2 more answers