Answer: x = (1,9]
Step-by-step explanation: If x is all real numbers greater than 1 (simply: x is greater but not equal to 1) then it is 1 < x. And if x is less than or equal to 9 then its x ≤ 9. To translate 1 < x ≤ 9 into interval notation, you need to keep in mind that parentheses are for these symbols: <>. And brackets are for these symbols: ≤≥. With that in mind, your answer is (1,9]. Also, keep in mind that interval notation goes from lowest value number to highest, so you wouldn’t write this notation as [9,1).
Answer:
B
Step-by-step explanation:
My understanding is that each point of the triangle is an angle so with those points at ever corner i picked be.
Also D and C would be known as a Mid point.
D is the Midpoint for M and Z
C is the Midpoint for L and Z
Y=14x+9 the values x=1,2,3
Let us consider that Christopher is 'x' years old
Age of Christopher = x
George is 8 years more than Christopher
Age of George = (x + 8)
Ford is 2 years younger than Christopher
Age of Ford = (x - 2)
Now the sum of their ages is 60
∴ x + (x + 8) + (x - 2) = 60
3x + 6 = 60
3x = 60 - 6
3x = 54
x = 54 ÷ 3
x = 18
Age of Christopher = x = 18 years
Age of George = (x + 8) = 18 + 8 = 26 years
Age of Ford = (x - 2) = 18 - 2 = 16 years
The sum of all their ages = 18 + 26 + 16 = 60 years