A-Level MathematicsYear 2020Q12
32 12. An advertising agency is monitoring the number of views of an online advert. The equation log10 V = 0.072t + 2.379 1 t 30, t ∈ is used to model the total number of views of the advert, V, in the first t days after the advert went live. (a) Show that V = abt where a and b are constants to be found. Give the value of a to the nearest whole number and give the value of b to 3 significant figures. (4) (b) Interpret, with reference to the model, the value of ab. (1) Using this model, calculate (c) the total number of views of the advert in the first 20 days after the advert went live. Give your answer to 2 significant figures. (2) _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________
Paper Source:8MA0_01_que_20201008.pdf
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Exam Specification Info
This question is part of the UK A-Level Mathematics syllabus. In the actual exam, structured questions typically require linking specific keywords to gain full marks. Applaa helps you drill these topics.
Syllabus levelAdvanced Level (A-Level)
SubjectMathematics
Official MarksVariable (2–6 marks)