Find the third side in simplest radical form:
8
15

length √17

Step-by-step explanation:

You must either share a diagram showing that this is a right triangle, or say in so many words that it's a right triangle.

We'll apply the Pythagorean Theorem.  First, let's square 8 and 15, obtaining 64 and 225.  Next, notice that the sum of 64 and 225 is 289, which is the square of 17.  The Pythagorean Theorem states in this case that 8^2 + 15^2 = 17^2.  

The third side is the hypotenuse of this right triangle.  That hypotenuse / third side has length √17.  This can't be reduced / simplified.

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.