Answer:
Step-by-step explanation:
Given


Required
Function from K to F
This implies that, we calculate F(k)
Given that:

Substitute c(k) for c

Substitute: 

Hence:

Answer:
x=4
Step-by-step explanation:
If all the figures are similar, we'll have to shrink them at the same rate as the rest.
The ratio here is 2/5. So,
2/5 = 6.4/16
2/5 = x/10
x=4
Answer:

Step-by-step explanation:
So we know that the slope is 2 and the lines passes through the point (-5,1).
We can use the point-slope form. The point-slope form is:

Where m is the slope and (x₁, y₁) is a point.
So, let's substitute 2 for m and (-5,1) for (x₁, y₁), respectively. Therefore:

Simplify:

Distribute the 2:

Add 1 to both sides:

So, the equation of our line is:

Step-by-step explanation:
A²+B²=C²
A²+4²=5²
A²+16=25
-16 -16
A²=9
√A=√9
A=3