Question

The oven was at room temperature 70℉. Just after it was turned on, the temperature rose 40℉ per minute. What does the independent variable represent? What does the dependent variable represent? Graph your results. Be sure to graph the independent variable on the horizontal axis. What will the temperature of the oven be after 6 minutes? Write an algebraic model (equation) for this application. How long will it take before the temperature is 450℉.

Answer #1

A cup of tea is cooling in a room that has a constant
temperature of 70 degrees Fahrenheit (F). If the initial
temperature of the tea, at time t=0 minutes, is 200 F and the
temperature of the tea changes at the rate: R(t) -6.89e^(-.053t)
degrees Fahrenheit per minute, what is the temperature, to the
nearest degree, of the tea after 4 minutes? 2. On the closed
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A thermometer at 70 degrees is taken outside where the
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answer is 40 degrees). using the information from this problem how
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Round answer to the nearest tenth of a minute.

A thermometer is removed from a room where the temperature is
70° F and is taken outside, where the air temperature is 20° F.
After one-half minute the thermometer reads 60° F. What is the
reading of the thermometer at t = 1 min? (Round your answer to two
decimal places.)
How long will it take for the thermometer to reach 35° F? (Round
your answer to two decimal places.) min

You are interested in the effect of room temperature on how well
students do at memorizing a list of unrelated words. You randomly
assign half of the student participants to a cool room and half to
a warm room. You then give each group the list of words. After
showing them the list, you have them write down as many words as
they can remember (a free-recall task). What is the independent
variable? What is the dependent variable?

1. A roast turkey is taken from an oven when its temperature has
reached 185°F and is placed on a table in a room where the
temperature is 75°F. (Round your answer to the nearest whole
number.)
(a) If the temperature of the turkey is 150°F after half an
hour, what is the temperature after 60 minutes?
T(60) = °F
(b) When will the turkey have cooled to 95°?
t = min
2. Let c be a positive number. A differential equation...

Murder Investigation: When a glass of wine with a certain
temperature is placed into a room, its temperature will converge to
the room’s temperature according to the formula:
F(t)=Fs+(F0-Fs) -.3t.
Where F(t) is the temperature of the object after being in the room
for t hours, F0 is the initial temperature of the object, and Fs is
the temperature of the room that the object is in. Use this formula
to investigate the scenario below and answer the following
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Task #1: Respiration Rate Changes in Minnows as a Function of
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McKay)
Introduction
Counting gill cover movements is a way to calculate respiration
rates in fish. Fish
breathe by taking water in through the mouth and forcing it over
the gills when the mouth
closes. An oxygen-carbon dioxide exchange occurs. Then the
operculum opens to allow
the carbon dioxide-rich water to exit. The respiration rate
changes in response to changes in the...

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In this lab, you will use Excel to determine the equation of the
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Brawdy Plastics, Inc., produces plastic seat belt retainers for
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1) Catalase Enzyme Activity. After heating the food item for 5
minutes
the reaction rate of catalase increased
the hot food item caused the hydrogen peroxide to break down
into water and O2
the high heat caused the catalase reaction not to occur
none of the above
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solution cool. Once the solution had cooled and was back to room
temperature you would describe your glass as
all the starch dissolved...

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