A metal bar at a temperature 100F° is placed in room at constant temperature 0 F° if after 20 minutes the temperature of bar is half .the expression for temperature is given by

Q: The depreciation of the value for a motorcycle is modeled by y=10,000(.85)x for x years since 2000.…

A: The depreciation value for a motorcycle is modeled by: y=10,000(0.85)x  where x is the number of…

Q: A body temperature of 50°F is placed outdoor where the temperature is 100°F. If after 5 minutes the…

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Q: Joan is 32 years old. Joan is twice as old as Kim was when Joan was as old as Kim is now. How Old is…

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Q: A weather forecaster says the temperature is changing at a rate of -8 per hour. At this rate , how…

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Q: It was 32 degrees F at 6:00 a.m. Then a cold front came in and the temperature dropped 6 degrees F…

A: Given that 32 degrees F at 6:00 a.m. Then a cold front came in and the temperature dropped 6 degrees…

Q: Suppose there is a 1.3∘F drop in temperature for every thousand feet that an airplane climbs into…

A: Correlation measures the association between two variables where one variable is independent…

Q: If 0.05x=1, then x equals

A: In given, 0.05 x= 1.So simplify the given equation to obtain the value of x.

Q: Find an equation for the line below. 8- O=0

A: equation of line passing through two points (x1 , y2)  and (x2 , y2)is   y-y1=y2-y2x2-x1x-x1

Q: You have to take a medication every 6 hours for 5 days starting at 7 A.M. Explain why you will never…

A: Given that the prescribed medication can be taken every 6 hours starting at 7 A.M. We have to…

Q: S is 4 years older than J. 8 years ago, s was twice as old than J. What are the ages of S & J?

A: Let the age of S be x years, then the age of J is (x - 4) years, because S is 4 years older than J.

Q: A car purchased for 20,000 depreciates annually at a rate of 8% the value of the car t years after…

A: A car purchased for $20,000 depreciates annually at a rate of 8%. The value of the car t years after…

Q: The purchased cost of a shell- and tube ) with 100 f of heating surface was $ 3,500 in 2000. what…

A: Given:The purchased cost of a shell - and - tube heat exchanger (floating head and carbon - steel…

Q: In 1960, the earthquake with the largest death toll happened in Morocco. It registered a 5.8 on the…

A: Richter scale is a scale of number used to tell the power of the earthquakes. One important point to…

Q: At 9:00AM, a thermometer reading 70°F is taken outdoors where the temperature is 15°F. At 9:05AM,…

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Q: Water is heated to its boiling point. It was then removed from the flame and was placed in the…

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Q: At 12:00NN, a thermometer reading 60 °C is taken outside where the temperature is 24 °C. At 12:02PM,…

A: GIVEN : T0 = 60°C at 12:00 noon, Ta = 24°C                At 12:02 PM , T = 32°C FIND - difference…

Q: An object with a temperature of 88°C is placed into the water of 25°C. After 15 minutes, the…

A: Newton's law of cooling: T-Ts = (To-Ts)ekt Where T is changed temperature  Ts- surface temperature…

Q: If, when the temperature of the air is 290 Kelvin, a certain substance cools from 370 Kelvin to 330…

A: Given problem:- If, when the temperature of the air is 290 Kelvin, a certain substance cools from…

Q: The median height of boys less than 5 years old can be estimated using the formula H= 2.9/x + 20.1,…

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Q: is equal to 1)

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Q: the present temperature is 55 degrees fahrenheit and the weather bureau is predicting that has a…

A: The present temperature is 55 degrees fahrenheit and the weather bureau is predicting that has a…

Q: The hydrogen ion concentration H*] of blood is approximately 4.23x 10¯° moles per liter. Find the pH…

A: Given the hydrogen ion concentration, [H+] of blood is approximately 4.23 x 10-8 moles/liter

Q: If there are initially 3000 bacteria in a​ culture, and the number of bacteria doubles each​ hour,…

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Q: A metal sphere cools from 80°C to 70°C in 5 minutes. How much more time (in minutes) will it take to…

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Q: A car is depreciating according to the formula V= 50,000 (3.20)-0.05x where X is the age of the car…

A: The given formula of depreciation of a car is,

Q: The size of the beaver population at a national park increases at the rate of 5.1% per year. If the…

A: Given query is to find population of beaver after 4 years.

Q: A thermometer is taken from an inside room to the outside, where the air temperature is 5 degrees…

A: Solution )

Q: In a murder investigation, the temperature of the corpse was 32.5◦C at 1:30 PM and 30.3◦C an hour…

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Q: Suppose the number of students enrolled at a 4 year college since 2000 is modeled by the equation…

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Q: Suppose that a car’s worth depreciates at a constant rate.  You bought the car in 2002 for $18,000…

A: Considering the years as x-axis and and cars worth as y-axis. Let 2002 be 0. Therefore,the given…

Q: The product of john age (in years) for 5 years age with his age (in years) 9 years later is 15 .Find…

A: The product of john age (in years) for 5 years age with his age (in years) 9 years later is 15

Q: When an object is dropped from a height of h feet, the time it will take to hit the ground can be…

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Q: As of 1995, the human population was expected to double within 50 years. If we calculated r for the…

A: Given that as of 1995 the human population was expected to double within 50 years. And r means the…

Q: An item is on sale for 51% off. If the sale price is $225, what was the original price? Give your…

A: Given An item is on sale for 51% off. Sale price is $225 To find original price.

Q: Suppose there is a 2​-degree drop in temperature for every thousand feet that an airplane climbs…

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Q: Within 24 hours in 1916, the temperature in Browning, Montana, fell from 44°F to -56°F. How large a…

A: Given, the temperature fell from 44oF to -56oF The Drop can be obtained by Subtracting the smaller…

Q: The total distance traveled by a boat 1 hour upstream and 30 minutes downstrem in which the rate of…

A: Let x  be the speed of the boat in still water. Then, the speed of boat in upstream is (x-3) and the…

Q: The average cat has a normal body temperature of 38.6° Celsius. The formula  can be used to convert…

A: Normal body temperature for a cat = 38.6 Celsius Formula to convert F to C is (F-32)59 Now the…

Q: Suppose that x liters of pure acid are added to 200 liters of a 35% acid solution.a. Write a formula…

A: x liters of pure acid are added to 200 liters of a 35% acid solution. a). Concentration C of the new…

Q: If the air is maintained at 15oC and the temperature of the body drops from 70oC to 40oC in 10…

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Q: A. The temperature of the body dropped from 200 degrees C to 100 degrees C for the first hour.…

A: As we know that the standard form Newton's law of cooling: T-T0=Ce-kt  ....1 Where, T0=ambient…

Q: At 1:00 P.M., a thermometer reading 70°F is taken outside where the air temperature is -10°F (ten…

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Q: According to an educational psychologist, the number of words learned by a student of a foreign…

A: We have to find

Q: The formula for converting temperature from Fahrenheit to Celsius is C =(F – 32), If the temperature…

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Q: If an object is shot upward with an initial velocity, vo, in feet per second (ft/s), the velocity,…

A: Given that if an object is shot upward with an initial velocity, v0, in feet per second (ft/s), the…

Q: Frank's automobile engine runs at 100°C. One day, when the outside temperature is 16°C, he turns off…

A: As per our guidelines we can solve only one question at a time. Please repost unsolved question…

Q: The temperature in Max's bedroom was 32° at 9:00 A.M. If the temperature then started decreasing by…

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Q: A metallic rod at a temperature of 120°F is placed in a room at a constant temperature of 10°F. If…

A: Initial temperature of metallic rod is:  T0 = 120∘F temperature of the room = 10∘F By Newton's law…