Answer:
81 is the LCM of 81 and 3
Step-by-step explanation:
81 is the smallest (least) number that both (common) 81 and 3 "go into" (multiple)
81 goes into 81.
3 goes into 81.
81 is the smallest number that they both go into.
Answer:
Option C
A Natural Number
Step-by-step explanation:
Every rational number is natural number
<em><u>-TheUnknownScientist</u></em>
Answer:
C
Step-by-step explanation:
Rather than picking, let's try to construct one from the description.
reflected over the x axis means -
the vertex is usually at (0,0), now how do we move a graph? or in other words translating it.
To move left and right you use 
where if you subtract h you move right and if you add h you move left. we go from (0,0) to (-4,2). so 0 to -4 is 4 left, so that means we add 4.
To move up and down we use 
Here if v is positive you move up and if v is negative you move down. going from (0,0) to (-4,2) it moves up 2
So now we put them all together 
And if you look, C matches that exactly.
Step-by-step explanation:
Solution file attached
Hack
for y=ax^2+bx+c
the xvalue of the vertex is -b/2a
and the y value is found by subsituting that for x
so
-b/2a
h(t)=2x^2+4x+7
a=2
b=4
-b/2a=-4/(2*2)=-4/4=-1
the y value
h(-1)=2(-1)^2+4(-1)+7
h(-1)=2(1)-4+7
h(1)=2+3
h(1)=5
(-1,5) is da vertex
