All categories

3 years ago

PLS help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

Darina [25.2K]3 years ago

5 0

9514 1404 393

Answer:

y = -1

Step-by-step explanation:

Sides marked with the same marking are congruent, so we have two equations:

3x -y = 16
2x +y = 9

Adding the equations gives ...

5x = 25

x = 5 . . . . . . divide by 5

Then the second equation tells us ...

y = 9 -2x = 9 -2(5) = -1

The value of y is -1.

You might be interested in

HURRY PLEASE I BARELY HAVE ANY TIME what is the solution to the system of equations?

DanielleElmas [232]

Answer:

maybe 3...............................

7 0

3 years ago

7.3 Times 10 to the power of two

navik [9.2K]

Answer: the answer is 730

Step-by-step explanation:

Hope this helps you! Have a good day! :)

8 0

3 years ago

NEED HELP ASAP. I don not understand why I'm wrong. What is the right answer???

hammer [34]

Answer:

Answer: 35/18

Step-by-step explanation:

$\frac{ \{ \frac{3}{4} - \frac{5}{2} \} }{ \{ \frac{3}{5} - \frac{3}{2} \}} = \frac{( - \frac{7}{4} )}{ (- \frac{9}{10} )} \\ \\ = \frac{7}{4} \div \frac{9}{10}$

use the reciprocal of 9/10 :

$= \frac{7}{4} \times \frac{10}{9} \\ \\ = \frac{35}{18}$

6 0

3 years ago

Read 2 more answers

Let f (x) = 1/x and g(x) = x² – 3x. What two numbers are not in the domain of fºg?

iren [92.7K]

For this case we have the following equations:

$f (x) = \frac {1} {x}\\g (x) = x ^ 2-3x$

We must find $(f_ {o} g) (x):$

By definition of composition of functions we have to:

$(f_ {o} g) (x) = f (g (x))$

So:

$(f_ {o} g) (x) = \frac {1} {x ^ 2-3x}$

We must find the domain of f (g (x)). The domain will be given by the values for which the function is defined, that is, when the denominator is nonzero.

$x ^ 2-3x = 0\\x (x-3) = 0$