The largest state in the US is Alaska, covering 663,267 square miles (including water). What is the approximate radius of a sphere with the same surface area as the area of Alaska?

a)

x+y2=14

⟹y2=14−x

⟹y=±14−x−−−−−√

Let’s say we plug in x=5

, we will get y=±3

The definition of a function says that one input must give us at most one output. This tells us that from this equation we cannot have y

as a function of x

.

b)

x3−y3=27

⟹y3=x3−27

⟹y=x3–27−−−−−√3

The cube root function gives us one output per input. As a consequence of the previous statement and using the definition of function we can say that from this equation we can write y

as a function of x

.

Answer:

The cost of one apple would be 0.5 :)

Step-by-step explanation:

Just took the test, hope this helps :)

Answer:

Step-by-step explanation:

All of the rest are x minus two, while that one is two minus x

Step-by-step explanation:

3ax - 4x = 15a - 20

x(3a - 4) = 15a - 20

so,

x × 3a = 15a

x × 3 = 15

x = 15/3 = 5

x × -4 = -20

x = -20/-4 = 5

since both terms have the same solution, it is the solution for the whole equation :

x = 5

Answer:

3)

Step-by-step explanation:

AB = AC = BC

In equilateral triangle, all the sides and angles are equal. Here the diagram is constructed using the sides.

Answer:

#3

Step-by-step explanation:

I think number two because it is the direct line pattern of 3. If you look at the bend it would go AB,AC,BC.