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Concept explainers
Tyler’s Flag Problem: Tyler has designed his own flag on a rectangle that is 3 inches tall and 6 inches wide. Now he wants to draw a larger version of his flag on a rectangle that is 9 inches tall. How wide should Tyler make his larger flag? Solve this problem in two ways: with the scale factor method and with the internal factor method. In each case:
- Explain clearly the idea and the reasoning of that method.
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Chapter 14 Solutions
Mathematics for Elementary Teachers with Activities, Books a la carte edition (5th Edition)
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- 7. Suppose that X is a set, that I is a nonempty set, and that for each i Є I that Yi is a set. Suppose that I is a nonempty set. Prove the following:2 (a) If Y; CX for all i EI, then Uiel Yi C X. ¹See Table 4.8.1 in zyBooks. Recall: Nie X₁ = Vi Є I (x = X₁) and x = Uier X₁ = i Є I (x Є Xi). (b) If XCY; for all i Є I, then X Ciel Yi. (c) U(x)=xnUY. iЄI ΕΙarrow_forwardFind the equation of the tangent line to the graph of the given function at the given value of x. f(x)=√√x+33; x=4arrow_forwardFind g[f(-7)]. f(x) = x² + 1; g(x)=-5x-1arrow_forward
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