Answer: there you go! I hope this helps!
Step-by-step explanation:
Answer:
x ≥ 2 or x ≤ -2
Step-by-step explanation:
|2x+1|≥5
There is a positive and negative solution. When we take the negative solution we flip the inequality.
2x+1 ≥5 or 2x+1 ≤-5
Subtract 1 from each side
2x+1-1 ≥5-1 2x+1-1 ≤-5-1
2x ≥ 4 2x ≤- 4
Divide by 2
2x/2 ≥ 4/2 2x/2 ≤- 4/2
x ≥ 2 or x ≤ -2
Answer:
Step-by-step explanation:
calculate x for this equation
f(x) = -5 : -4x +2 = - 5 so : -4x =-7 x = 7/4
f(x) = 2 : -4x +2 = 2 so : -4x =0 x = 0
f(x) =6 : -4x +2 = 6 so : -4x =4 x = -1
f(x) = 18 : -4x +2 = 18 so : -4x =16 x = - 4
the domain is : D = {7/4, 0, -1, -4}
Answer:
I.
II.
One and two are the correct ones
Step-by-step explanation:
Y goes up and down
X is side to side
so
x comes first in an ordered pair.
(I remember that by saying, "You need to find the room before you can ride the elevator)
Answer:
x=5
Step-by-step explanation:
Let's assign the number of years until Leo will be 3 times as old as Amira as x.
Leo = 19, Amira = Leo-16=19-16=3.
In x number of years, Leo+x = (Amira+x)*3, so 19+x=(3+x)*3. We will then try to isolate x. Subtracting both sides by x and then dividing both sides by 3, we get
19/3 = 3 +x - x/3. Subtracting 3 from both sides, we get 10/3=2*x/3. Multiplying both sides by 3 and then dividing both sides by 4, we get x=5 years