A circular cover to a swimming pool has a diameter that is 1.8 times the diameter of the cover to a hot tub. If the area of the swimming pool cover is about 254 square feet, what is the area of the hot tub cover? Round to the nearest tenth.

141 square feet

Step-by-step explanation:

254 / 3.14 = 80.89

80.89 / 1.8 = 44.93

44.93 x 3.14 = 141.08

Being rounded to the nearest foot would mean that the hot tub cover is about 141 square feet.

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.

24

step-by-step explanation:

the graph shows 30% of students walk. 80 students were questioned, so the number that said they walk is

30% × 80 = 0.30 × 80 = 24