Answer:
- Domain =
- Range =
Step-by-step explanation:
The given function is,
f(x) is a quadratic function. As this is a polynomial function, so its domain is the entire real number set.
As its leading coefficient will be negative, so it will open downward. Hence, its range will be all real numbers below its vertex.
The general vertex form of quadratic function or parabola is,
where (h, k) is the vertex.
Comparing the given function with this we get the vertex at 
The y coordinate of the vertex is -2, so the range of the given quadratic function is,
Answer:
The answer would be 41 when x=4
Step-by-step explanation:
Hope this helped, if you could give me brainliest that would be great
*Befri.stends
Question:
What is the area of the sector? Either enter an exact answer in terms of π or use 3.14 and enter your answer as a decimal rounded to the nearest hundredth.
Answer:
See Explanation
Step-by-step explanation:
The question is incomplete as the values of radius and central angle are not given.
However, I'll answer the question using the attached figure.
From the attached figure, the radius is 3 unit and the central angle is 120 degrees
The area of a sector is calculated as thus;
Where 
represents the central angle and r represents the radius
By substituting 
and r = 3
becomes
square units
Solving further to leave answer as a decimal; we have to substitute 3.14 for 
So, becomes
square units
Hence, the area of the sector in the attached figure is 
or 9.42 square units
Answer:
Explanation:
Simplify both sides of inequality
-2 / 3 > 1 / 5 z
Flip equation
1 / 5 z < -2 / 3
Multiply both sides by 5
(1 / 5 z) 5 < (-2 / 3) 5
Z < -10 / 3
