If the water level at the lake continued to change at the same rate for 3 months in a row, explain how you could estimate the total change in the water level at the end 3 month period

Water level at end of the 3 months = 3* -1 = -3 feet.

Step-by-step explanation:

Here the water level at a lake continued to change at the same rate for 3 months in a row.

For instance, if the water level decrease, we represents it by a negative number.

If the water level increases, we represents it by a positive number.

To estimate, we try to represents the fractions in to whole number.

For instance, if the water level decreases at the rate of feet per month, which is close to 1. Since it is decreases we represents it by -1.

If the water level increases, we represent it by a positive number.

To represent the water level at end of the 3 months, we have to multiply -1 by 3.

Water level at end of the 3 months = 3* -1 = -3 feet.

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

d 25 pi/6

step-by-step explanation:

the diameter is 10 inches

the radius is 1/2 of the diameter or 5 inches

the area of the circle is

a = pi r^2

  = pi 5^2

  = 25 pi

the slice is 60 degrees of the entire circle.

60 degrees out of 360   60/360 = 1/6

the area of the slice is 1/6 of the circle

a slice = 1/6 a circle

a slice = 1/6 * 25 pi