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- Find the constant of proportionality. y is directly proportional to x. If x=30, then y=15.arrow_forwardDerivative EXAMPLE. To find the derivative of (2z2 + i)°, SOLUTION write w = 2z2 +i and W = w°. Then d -(2,² + i)5 = 5w+4z = 20z(2z² + i)ª. dz EXERCISES 1. find f'(z) when (a) ƒ (z) = 3z2 – 2z + 4; (b) f(z) = (1 – 4z?,³ ; z – 1 (1+z?)4 (c) f(z) = 2: + 1 (z # -1/2); (d) f (z) = (z # 0).arrow_forwardDon't use chat gpt Itarrow_forward
- Plz check the pic & plz explain. ?Thanks.arrow_forwardAdd solutionarrow_forwardThe table shows the position of a cyclist. t (seconds) 0 1 2 3 4 5 s (meters) 0 1.3 4.5 10.3 17.5 25.6 (a) Find the average velocity for the time period [1, 3]. m/s (b) Find the average velocity for the time period [2, 3]. m/s (c) Find the average velocity for the time period [3, 5]. m/s (d) Find the average velocity for the time period [3, 4]. m/sarrow_forward
- A red coin as a 1 on one side and a 3 on the other. A blue coin has a 0 and a 1. Let X represent the total of both coins, Y = number flipped on the blue coin. Find f(x,y) Draw the pdf. find f.(r) and f,(y)arrow_forwardThe heat index I is a measure of how hot it feels when the relative humidity is H (as a percentage) and the actual air temperature is T (in degrees Fahrenheit). An approximate formula for the heat index that is valid for (T, H) near (90, 40) is I(T, H) = 45.33 + 0.6845T +5.758H - 0.00365T2 -0.1565HT +0.001 HT² Calculate I at (T, H) = (97, 43). (Use decimal notation. Give your answer to three decimal places.) I(97, 43) = Determine the partial derivative. (Use symbolic notation and fractions where needed.) ar ƏT = Calculate this partial derivative when (T, H) = (97, 43). (Use decimal notation. Give your answer to three decimal places.) di ƏT (97,43) =arrow_forwardFluid runs through a drainage pipe with a 10-cm radius and a length of 10 m (1000 cm). The velocity of the fluid gradually decreases from the center of the pipe toward the edges as a result of friction with the walls of the pipe. For the data shown, v (x) is the velocity of the fluid (in cm/sec) and X represents the distance (in cm) from the center of the pipe toward the edge. 1 5 8 9 2 3 4 6 7 v (x) 195.9 195.2 194.2 192.7 190.8 188.4 185.6 182.3 178.6 174.5 Part: 0/ 4 Part 1 of 4 (a) The pipe is 10 m long (1000 cm). Determine how long it will take fluid to run the length of the pipe through the center of the pipe. Round to 1 decimal place. It will take fluid approximately 5.104 sec to run the length of the pipe through the center of the pipe. Part: 1/4 Part 2 of 4 (b) Determine how long it will take fluid at a point 9 cm from the center of the pipe to run the length of the pipe. Round to 1 decimal place. It will take fluid approximately sec to run the length of the pipe at a point 9…arrow_forward
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