Answer:
12
Step-by-step explanation:
Suppose you had f=6, g=2, h=3 and you were asked to find
f - g - h
You would do it by substituting the given values for the letters to get
6 - 2 - 3
And this can be simplified to
1
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The question at hand is basically the same. You are given values of f(x), g(x), h(x) and asked to find their signed sum.
f(x) - g(x) - h(x)
= (3x+5) - (4x²-2) - (x²-3x+1) . . . . substitute the given values
= 3x + 5 - 4x² + 2 - x² + 3x - 1 . . . use the distributive property to eliminate parentheses. A minus sign in front changes the sign of every term inside parentheses.
= x²(-4-1) +x(3+3) +(5+2-1)
= -5x² + 6x + 6 . . . . . . collect terms . . . . matches the first choice
Answer:
and 
are the required solution.
Step-by-step explanation:
We have been give the graph of a function in which there is a downward parabola and a line.
Solution to the system of equation is intersection of two curves.
We can see that the parabola and line intersects at two points.
We ca see from the graph that there is 2 units scale in the coordinate plane. and are the required solution.
<span>-4n^0 × 3n^-2
= -4(1) </span>× 3n^-2
= -4× 3n^-2
= -12 n^-2
= -12/n^2
