Answer:
Step-by-step explanation:
Hope this helps.
The zeros are -8, -1, 2, so you can write the function as f(x)=(x-(-8))(x-(-1))(x-2)=(x+8)(x+1)(x-2).
Expand:
The function is f(x)=x³+7x²-10x-16.
The missing value is 7.
Not sure what algebra tiles are
not sure how to absolutely prove
I can prove it works at least most of the time by subsitute ing number for x
remember that 0,1,2 have special properties and are not very good for subsituting so
try 4
4+8(4)=4(2(4)+1)
true or false?
4+8(4)=4(2(4)+1)
multipily
4+32=4(8+1)
36=4(9)
36=36
this is treu at least for the number 4
another way is to believe in the distributive property where
a(b+c)=ab+ac so then
4(2x+1)=4(2x)+4(1)=8x+4=4+8x
Part A.
The set of equations can be solved by substitution. Use the expression one equation gives for y as the value of y in the other equation. This gives
2x²-15 = 3x-6
Subtracting the right side gives a quadratic in standard form that can be solved by any of several methods.
2x² -3x -9 = 0
(2x+3)(x-3) = 0 . . . . factor the above equation
x = -3/2, x = 3 . . . . .use the zero product rule to find x
Now, these x-values can be substituted into either equation for y. The linear equation is often easier to evaluate.
y = 3(-3/2) -6 = -10.5
y = 3(3)-6 = 3
The solutions to the system are (-1.5, -10.5) and (3, 3).
Part B.
The two equations can be graphed. The solutions are where the graphs intersect. The graphs intersect where the (x, y) values that satisfy one equation are the same (x, y) values that satisfy the other equation. Those points of intersection are (-1.5, -10.5) and (3, 3).
Answer:
What is an amount between $2 and $10? (A) __$8________ What is an amount between $10 and $20? (B) ___$12_______ What is an amount greater than $50? (C) ___$51______ What is your name? (D) ___you should put your name here______________ What is the name of an item that you will buy only once? (E) __Answers will vary-one example is a stand mixer._______________ What is the name of an item that you will buy more than once? (F) __Bread_________ Create a word problem that leads to an inequality by filling in the blanks with your corresponding answers.
Today, you are buying two loaves of gluten free bread at $4 each for a total of $8. You are also buying a shirt that has your name on it for $12 and a stand mixer that costs over $51, but you're not sure how much more. How much are you spending today?
8+12+51 > x
x>71
Step-by-step explanation: