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Concept explainers
Work these problems. (See Examples 6, 7, and 8.)
Snapchat Users The total number of global daily users (in millions) of Snapchat can be approximated by the function
where
a. Give the number of global daily users for the third quarter of 2015.
b. What was the first full quarter in which the number of daily global users exceeded 120 million?
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Chapter 4 Solutions
Pearson eText for Mathematics with Applications In the Management, Natural, and Social Sciences -- Instant Access (Pearson+)
- please solve, thank youarrow_forwarduse Euler’s method to find approximate values of the solution of the given initial value problem at t = 0.5, 1, 1.5, 2, 2.5, and 3: for y'= 5-3sqrt(y) y(0)=2 (a) With h = 0.1, (b) With h = 0.05, (c) With h = 0.025, (d) With h = 0.01.arrow_forwardthe point (1,4) is on the graph of y=f(x). Determine the co-ordinates of the image of this point on the graph of y=3f (-4(x+1))-2 I have just asked this question but the response still did not make sense. Please can you give me a step by step and why to this question. thank youarrow_forward
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- Page of 2 ZOOM + 1) a) Answer the following questions by circling TRUE or FALSE (No explanation or work required). [1 0 0 i) A = 0 2 6 is invertible. (TRUE FALSE) LO -4-12] ii) We can use the transpose of the cofactor matrix to find the inverse of a matrix. (TRUE FALSE) = iii) If A 2, and A is a 5x5 square matrix, |2A] = 64. (TRUE FALSE) iv) Every vector space must contain two trivial subspaces. (TRUE FALSE) v) The set of all integers with standard operations is a vector space. (TRUE FALSE) b) Write v as a linear combination of the vectors in the set S, if possible, where v=(1,-4), and S={(1,2),(1,-1)}. 2) a) Solve the following system of linear equations using Cramer's Rule and check the correctness of your answer. 4xyz 1 2x + 2y + 3z = 10 5x-2y-2z = -1 b) Find the adjoint of the following matrix A. Then use the adjoint to find the inverse of A if possible, and check the correctness of your answer. A = c) Determine whether the following points are collinear. Why or why not? If not,…arrow_forwardEvaluate the definite integral using the given integration limits and the limits obtained by trigonometric substitution. 14 x² dx 249 (a) the given integration limits (b) the limits obtained by trigonometric substitutionarrow_forwardI am completely lost in how to answer this question. Please help with as many details. Thank youarrow_forward
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