Question 3 A journey between two towns, Pietermaritzburg and Durban, is exactly 90 km. 3.1 Use a graph (with at least's different speeds in km/h) to model how variation in speed (1) over the journey causes variation in time taken () to complete the trip. Hint: time should be given in minutes 3.2 Describe what happens to y (the time) when x (the speed) increases Is it possible that a vehicle could travel so fast that the trip could be done in no time at all? Give a reason for your answer. 3.4. How does the trend of the graph relate to the question in 3.3? 3.3 Question 4 LY • (-34 4-4- 3-- • A(22) x X​

Acylinder and its dimensions are shown. which equation can be used to find v, the volume of the cylinder in cubic centimeters?

Someone answer this asap rn for ! a discount store’s prices are 25% lower than department store prices. the function c(x) = 0.75x can be used to determine the cost c, in dollars, of an item, where x is the department store price, in dollars. if the item has not sold in one month, the discount store takes an additional 20% off the discounted price and an additional $5 off the total purchase. the function d(y) = 0.80y - 5 can be used to find d, the cost, in dollars, of an item that has not been sold for a month, where y is the discount store price, in dollars. create a function d(c(x)) that represents the final price of an item when a costumer buys an item that has been in the discount store for a month. d(c(x)) =

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c