Complete the square to solve the equation below. check all that apply. x2 - 10x - 1 = 13

Complete square:

Solutions:

Step-by-step explanation:

We have been given an equation . We are asked to complete the square.

First of all, we will add 1 to both sides of our given equation.

Now we will add to both sides of our equation. We can see that the value of b is 10.

Upon adding 25 on both sides of our equation we will get,

Taking square root of both sides we will get,

Adding 5 on both sides of our equation we will get.

Therefore, solutions for our given equation are .

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.