22. A train travels 3 hours at 20km per hour. How long will it take another train to travel the same distance at 10km per hour? (a) 6²/³ hours (b) 6¹/2hours (c) 6 hours (d) 3 hours (e) 2 hours What I
Day (t) No. of Calories Burned C(t) 2 314 4 356 6 370 8 386 10 405 12 442 14 516 Amanda goes to the gym every day and cross–trains. Based on a chart at the gym showing the calories expended for various activities, Amanda has kept track of the number of calories she has burned over the last two weeks. She wants to find the rate at which she burned calories on day 8. That is, she needs to find C'(8). Estimate the value. A. 8.00 calories per day B. 8.75 calories per day C. 17.50 calories per day D. 17.75 calories per day Answer: In photo below You're Welcome :)
Year No. of cars sold in (hundreds) 2000 45 2002 51 2004 53 2006 60 2008 77 A car manufacturer's sales figures for 2000 to 2008 are shown in the table. Estimate the average rate of change in the number of cars the manufacturer sold between 2002 and 2006. A. 450 cars per year B. 225 cars per year C. 2,900 cars per year D. 600 cars per year Answer: In photo below You're Welcome :)
The resistance of a thermistor, a device used to monitor the temperature inside an engine, changes with temperature. The resistance of the thermistor is given by R(t) = t3 + 5, where R is measured in ohms and t is the temperature in °C. What is the average rate of change of resistance per degree of temperature change between 0°C and 2°C? A. 4 ohms/°C B. 8.5 ohms/°C C. 11 ohms/°C D. 17 ohms/°C Answer: In photo below You're Welcome :)
The velocity function of a car is given by v(t) = -3t2 + 18t + 9 m/s. Find the acceleration of the car three seconds before it comes to a stop. A. a = -6.46 m/s² B. a = -2.76 m/s² C. a = -0.46 m/s² D. a = 2.76 m/s² Answer: In photo below You're Welcome :)
Jenna and Marcia are knitting scarves to donate to a nearby homeless shelter. Jenna already has 5 scarves made and continues to make 2 scarves per day. Marcia already has 3 scarves made and continues to make 3 scarves per day. After how many days will the two ladies have the same number of scarves made? Use the graph to the right to show your solution.
Given the measure of m/ABC = 120°, m/ABK = 5x+10 &m/CBK = 6x Write an equation and solve for x, then find /CBK (PLEASE HELP 100 POINTS FOR BRAINLIEST ANSWER)
please help! Triangles ABD and CBD are shown. Triangle A C D is divided into two smaller triangles which are triangle A B D and D B C which share a common side B D. Point B lies on segment A C. Segment A B is congruent to segment B C. If m∠ABD = 100°, what is the relationship between AD and CD?
8.How do you know whether the graph of g(x) = a |x| is a vertical stretch or a vertical shrink of the graph of f(x) = b |x|?
If 11 is increased to 15, the increase is what percent of the original number? (This is known as the percent change.) Hint: Write your resulting percent in decimal form with three decimal places of accuracy. Example: Write 2% as 0.02. Write 5.66% as 0.057. Submit QuestionQuestion 2
A team of students captured and tagged 85 trolls in a forest. Two weeks later, the students captured a sample of 36 trolls and 4 of them were tagged. Use this information to make a proportion and solve it to estimate how many trolls are in the forest.
Determine the axis of symmetry of the graph of the following parabola. f(x)=3(x−5)2+1 Give your answer in the form x=h.
