Step-by-step explanation:
OA=AC=OC=2 (equal triangle)
which means angle O =60 degree
tan 60 = AB / 2
AB = 2 tan 60 =

Answer: The shoe size would be recommended for a four-month-old baby is equal to 1
Step-by-step explanation:
Since, according to the given figure,
Here, x represents age of baby (in month) while y represents shoe size.
And for babies ,
the shoe size = 0
the shoe size = 1
the shoe size = 2
the shoe size = 3
the shoe size = 4
thus, from the above we can say that, the shoe size of the baby who is 4 month old is 1.
Answer:

Step-by-step explanation:
Given




Required
Determine the new coordinate of J
From rules of rotation,
When a point (x,y) is rotated 270 degrees CCW;
The new point becomes (y,-x)
Considering point J

This means

Where
and 
Using the above rotation rule of

The coordinates of J' becomes

To graph the function g(x) = (x<span> – 5)</span>2<span> – 9, shift the graph of </span>f(x<span>) = </span>x2 <span>✔ right
</span><span> 5 units and </span><span>✔ down</span><span> 9 units.</span>