Answer:
57-48
Step-by-step explanation:
9
X - y = 2
4x - 3y = 11.
Using Elimination method, eliminating x, multiply equation (i) by 4. Because of the 4 in the second equation.
x - y = 2 ... (x4)
4x - 3y = 11.
4x - 4y = 8
4x - 3y = 11.
The first minus the second.
(4x - 4x) -4y- -3y = 8-11
-4y + 3y = -3
-y = -3. Divide both sides by -1
y =3.
Substitute this value into the very first equation
x - y = 2, y = 3
x - 3 = 2
x = 2 + 3 = 5.
Therefore x = 5, y = 3.
Answer:
Domain:
Range:
Step-by-step explanation:
<u>Domain And Range Of A Function</u>
Let y=f(x) a real function. We call the domain of f to every possible value x can take that produces one real value for y. The range of f, is the set of all those values y can take when we take every possible element from the domain.
In the image, we can see the graph of a function who takes values of x without restriction, if x was greater than the maximum value shown in the graph, f(x) will take greater values also. The same happens if x was smaller than the minimum value shown in the graph. We can conclude the domain of x is
We can also see the values of y come from , then reach a minimum value of -2, and then increases without limits to . This means the range is
Answer:
12
Step-by-step explanation:
Use the PEMDAS
there is a parenthesis and exponents
9/3{(8) - 4)}
Multiply and divide 9/3= 3
Also subtract 8-4 = 4
3{8-4}
3(4)= 12