1. MATHEMATICAL MODELING A funnel is filled with water to a height of centimeters. The formula…

1. MATHEMATICAL MODELING A funnel is filled with water to a height of centimeters. The formula
represents the amount of time (in seconds) that it will take for the funnel to
empty.

(a) Use the table feature of a
graphing utility to find the times required for the funnel to empty for

water heights of . . . centimeters.

(b) What value does appear to be approaching
as the height of the water becomes closer and closer to 12 centimeters?

2. SPEED OF LIGHT The speed of light is approximately 11,180,000 miles per minute. The
distance from the sun to Earth is approximately 93,000,000 miles.

1. MATHEMATICAL MODELING A funnel is filled with water to a height of centimeters. The formula
represents the amount of time (in seconds) that it will take for the funnel to
empty.

(a) Use the table feature of a
graphing utility to find the times required for the funnel to empty for

water heights of . . . centimeters.

(b) What value does appear to be approaching
as the height of the water becomes closer and closer to 12 centimeters?

2. SPEED OF LIGHT The speed of light is approximately 11,180,000 miles per minute. The
distance from the sun to Earth is approximately 93,000,000 miles. Find the time
for light to travel from the sun to Earth.

Q449;

1. THINK ABOUT IT Is written in scientific notation? Why or why not?

2. List
all possible digits that occur in the units place of the square of a positive
integer. Use that list to determine whether is an integer.

3. THINK ABOUT IT Square the real number and note that the radical is eliminated from
the denominator. Is this equivalent to rationalizing the denominator? Why or
why not?

4. COMPOUND INTEREST After 3 years, an investment of $1200 compounded annually at an
interest rate will yield an amount of

(a) Write this polynomial in
standard form.

(b) Use a calculator to evaluate
the polynomial

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