Your answer is 500
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Answer:

Step-by-step explanation:
<u>Value of functions</u>
To evaluate a function for a given value of x, we replace the x for the value and perform the resulting operations.
The given function is (corrected):

We need to find f(-4), so we use x=-4:



Answer:
5
Step-by-step explanation:
x × 4 = x + 15
4x = x + 15
-x -x
3x= 15
-- --
3 3
x = 5
// have a great day //
There is one solution. The solution of the system is (9,-5)
Option A is correct.
Step-by-step explanation:
We need to solve the system of equations by elimination method

Rearranging the equations:

Eliminating y to find value of x:
Multiply eq(1) by 5 and eq(2) by 2 and add both equations:

So, value of x= 9
Eliminating x to find value of y:
Multiply eq(1) by 2 and eq(2) by 6 and subtract both equations:

So, value of y = -5
There is one solution. The solution of the system is (9,-5)
Option A is correct.
Keywords: Solving system of equations
Learn more about Solving system of equations at:
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Answer:
1
Step-by-step explanation:
5/9 = 0.5555555
The smallest sequence of repeating digits in the decimal equivalent of 5/9
0.5
0.5 + 0.05
0.5 + 0.05 + 0.005
0.5 + 0.05 + 0.005 + 0.0005
Hence, the number of digit in the smallest sequence of repeating decimal is 1
5/9 = 0.5....