250/360 = x/60
x = 41.7 cm
This is because when the whole circle is 250 cm (angle is 360 degrees), 60 degrees means that the arc is 41.7 cm.
Answer: b) 2 units left, 4 units up, reflect across y-axis
<u>Step-by-step explanation:</u>
The easiest way to do this is to graph the black triangle using the the given options to see which one lands on the red triangle.
The second option is the one that works.
Answer:
Step-by-step explanation:
Given that When n is divided by 21, the remainder is an odd number.
i.e.
where m is an integer and k a positive integer <21
When n is divided by 28, the remainder is 3
, where c is a positive integer
This can be written as

Since n is giving odd remainder when divided by 21,
we get r =3 as n is a multiple of 7 +3
Answer:

Step-by-step explanation:
We want to find the equation of a parabola with vertex (0,5), focus at (0,7) and directrix y=3.
This is given by 
where p=2, h=0, and k=5
We substitute these values to get:

This simplifies to:

We solve for y to get:
