A ladder is leaning against a wall that is perpendicular with the ground. If the base of the ladder is 3 meters from the wall and the ladder reaches 6 meters
vertically up the wall. How long is the ladder?

Ladder is 6.7 meters long

Step-by-step explanation:

3² + 6² = x²

9 + 36 = x²

45 = x²

x = √45 = 6.7 meters

32

step-by-step explanation:

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.