Answer:
120
100+5w=m (m is his money after saving up)
Answer:
Step-by-step explanation:
f(x)+1 means the graph is moved up by 1
f(x)-1 means it is moved down by 1
f(x+1) means it is moved left by 1
f(x-1) means it is moved right by 1
Keep in mind when it's inside the function it's kinda flipped. since the right is the positive x direction and vice versa.
Anyway, the options show us how the top point is moved. It always starts at (4,1). I will solve the first and leave the others to you, but let me know if yous till need me to walk you through it.
In A the point moves from (4,1) to (4,3) So what does this mean? It means up by 2, since 1 goes to 3. Now, which of the options make the graph move up? the f(x)+1 option. Well, if f(x)+1 makes it go up by 1, then f(x)+2 makes it go up by 2, which is what we want. So A goes with f(x)+2
Answer:
(x - 3)(5x - 3)
Step-by-step explanation:
Assuming you require the expression to be factorised.
Given
5x² - 18x + 9
Consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term.
product = 5 × 9 = 45 and sum = - 18
The factors are - 15 and - 3
Use these factors to split the x- term
5x² - 15x - 3x + 9 ( factor the first/second and third/fourth terms )
= 5x(x - 3) - 3(x - 3) ← factor out (x - 3) from each term
= (x - 3)(5x - 3) ← in factored form
C. Eight ninths because 1/3=3/9 and 3/9 +5/9= 8/9
Answer:
x < -8
Step-by-step explanation:
-x - 10 > 14 + 2x
Subtract 2x from both sides;
-3x - 10 > 14
Add 10 to both sides;
-3x > 24
Divide both sides by -3
The sign switches when divide by a negative number.
x < -8
