Step-by-step explanation:
the domain is the interval or set of all valid x-values for the function.
and the range is the interval or set of all valid y-values (functional result values) for the function.
so, we can see here that the function would create results for all x in (- infinity, + infinity). that is the domain.
now, what result values (y-values) are possible ?
we see, that the smallest functional value is y = -2.
and from there all y-values up to +infinity are possible.
so, the range is [-2, +infinity).
please consider the chosen brackets. the "[" means the value is included in the function, a "(" means that that particular interval end value is excluded. anything bigger or smaller might be valid but not this one value.
and infinity is not a value. hence they are not included in such intervals.
Answer:
15 degrees
Step-by-step explanation:
x + 5x + 90 =180( sum angle of a triangle )
6x + 90 = 180
6x = 180 - 90
6x = 90
x = 90/6
x = 15 degrees
Y = -2x + 5
-1: -2(-1) + 5 = 9
1: -2(1) + 5 = 3
3: -2(3) + 5= -1
5: -2(5) + 5= -5
Plot these coordinates on the graph
(-1,9)
(1,3)
(3,-1)
(5,-5)
If the line is straight then it’s linear
If the line has a constant of proportionality the it’s proportional
Hello,
Let a the greater number
b the smaller one
a-b=18
2b=3a-56
==>
a-b=18 |*(-2)
3a-2b=56
==>a=56-2*18
==>a=20 and b=a-18=2
Proof a-b=20-2=18
2=3*20-56
Numbers are 20 and 2.
Answer:
Surface area of a cylinder = 2πrh+2πr²
r = radius
h = height
Step-by-step explanation: