Ask question

Ask question

All categories

3 years ago

5

If (2x,3y) =(8, 9),find x and y

2 answers:

Roman55 [17]3 years ago

4 0

Hope it helps !!!!!!!

JulijaS [17]3 years ago

3 0

Answer:

Step-by-step explanation:

2x=8 and 3y=9

x=8/2 and y=9/3

x=4 and y=3

You might be interested in

A. Use composition to prove whether or not the functions are inverses of each other. B. Express the domain of the compositions u

Kryger [21]

Given: $f(x) = \frac{1}{x-2}$

$g(x) = \frac{2x+1}{x}$

A.)Consider

$f(g(x))= f(\frac{2x+1}{x} )$

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

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

$f(\frac{2x+1}{x} )=\frac{x}{1}$

$f(\frac{2x+1}{x} )=1$

Also,

$g(f(x))= g(\frac{1}{x-2} )$

$g(\frac{1}{x-2} )= \frac{2(\frac{1}{x-2}) +1 }{\frac{1}{x-2}}$

$g(\frac{1}{x-2} )= \frac{\frac{2+x-2}{x-2} }{\frac{1}{x-2}}$

$g(\frac{1}{x-2} )= \frac{x }{1}$

$g(\frac{1}{x-2} )= x$

Since, $f(g(x))=g(f(x))=x$

Therefore, both functions are inverses of each other.

B.

For the Composition function $f(g(x)) = f(\frac{2x+1}{x} )=x$

Since, the function $f(g(x))$ is not defined for $x=0$ .

Therefore, the domain is $(-\infty,0)\cup(0,\infty)$

For the Composition function $g(f(x)) =g(\frac{1}{x-2} )=x$

Since, the function $g(f(x))$ is not defined for $x=2$ .

Therefore, the domain is $(-\infty,2)\cup(2,\infty)$

8 0

4 years ago

Help please !!!!!!!!!

geniusboy [140]

I believe (7.5, 12.5) is the answer. The answer is where both lines intersect unless there is more to the question.

4 0

3 years ago

Which equation can be used to find the perimeter of a regular pentagon with sides of length 15 inches?

tresset_1 [31]

The perimeter means the sum of all sides.
So, In pentagon, it would be: 5(15) [ With five sides ]

In short, Your Answer would be Option C

Hope this helps!

3 0

4 years ago

Read 2 more answers

What is the realashionship between ceels and tissues

zaharov [31]

The relationship ship between cells and tissues is that a group of SIMILAR cells form a tissue so tissues consist of cells

That’s the similarity

Thank :)

6 0

3 years ago

What is the answer to this?

fredd [130]

Answer:

y = 3, TU = 6

Step-by-step explanation:

SU is an angle bisector and divides the opposite side into segments that are proportional to the other 2 sides, that is

$\frac{SV}{ST}$ = $\frac{VU}{TU}$ , substitute values

$\frac{24}{4y-2}$ = $\frac{14.4}{2y}$ ( cross- multiply )

14.4(4y - 2) = 48y

57.6y - 28.8 = 48y ( subtract 48y from both sides )

9.6y - 28.8 = 0 ( add 28.8 to both sides )

9.6y = 28.8 ( divide both sides by 9.6 )

y = 3

Then

TU = 2y = 2 × 3 = 6

3 0

3 years ago