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6. [-/1 Points] DETAILS TANAPCALC10 3.6.028. MY NOTES ASK Y Find y by implicit differentiation. dx x2y1/2 = 3x + 10y3 dy dx Need Help? Read It Watch It 7. [-/1 Points] DETAILS TANAPCALC10 3.6.034. Find an equation of the tangent line to the graph of the function f defined by the following equation at the indicated point. (x - y - 1)' = x; (1, -1) y = Need Help? Read It Watch It8. [-/1 Points] DETAILS TANAPCALC10 3.6.040. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Distance Between Two Cars A car leaves an intersection traveling west. Its position 4 sec later is 18 ft from the intersection. At the same time, another car leaves the same intersection heading north so that its position 4 sec later is 30 ft from the intersection. If the speeds of the cars at that instant of time are 8 ft/sec and 13 ft/sec, respectively, find the rate at which the distance between the two cars is changing. (Round your answer to one decimal place.) ft/s Need Help? Read It Watch It 9. [-/1 Points] DETAILS TANAPCALC10 3.6.041. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Effect of Price on Demand for Tires Suppose the quantity demanded weekly of the Super Titan radial tires is related to its unit price by the equation p + x = 100 where p is measured in dollars and x is measured in units of a thousand. How fast is the quantity demanded weekly changing when x = 6, p = 64, and the price per tire is increasing at the rate of $2/week? (Round your answer to the nearest tire.) tires/week Need Help? Read It Watch It