How do you evaluate: To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12. If we know the value of our variables, we can replace the variables with their values and then evaluate the expression.
Answer:
[-1, ∞ )
Step-by-step explanation:
The use of parentheses is essential here. I am assuming that you meant:
y=√(x-5) - 1
Note that √(x-5) has the range [0, ∞ ). The domain is [5, ∞ ).
Thus, y=√(x-5) - 1 has the range [-1, ∞ )
6×(1×5)=(6×1)×5
6×5=6×5
30=30
Always do the brackets first.
Follow BEDMAS
B = Brackets
E = Exponent
D = Division
M = multiplication
A = Addition
S = Substruction
Answer:
Step-by-step explanation:
You can find your answer in attached document.
