Solve the problem.If a single pane of glass obliterates 15% of the light passing through it, then the percent P of light that passes through n successive panes can be approximated by the equation P = 100e-0.15nHow many panes are necessary to block at least 50% of the light?
Fill in the blank(s) with the appropriate word(s).
5 panes
Mathematics
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Solve the problem.The Lucas numbers are defined recursively by L1 = 1, L2 = 3, LN = LN-1 + LN-2. The value of L7/L6 is approximately
A. 1.611. B. 0.618. C. 1.17. D. 6. E. 4.584.
Mathematics
Write an expression in simplest form for the perimeter of the shape.
A. 4x + 30 B. x2 - 15x C. 4x - 30 D. 2x2 - 30x
Mathematics
Find the equation of the line specified.The slope is 4, and it passes through (-3, 5).
A. y = 4x - 7 B. y = 8x + 17 C. y = 4x + 17 D. y = 4x + 5
Mathematics
Determine whether y ? ? or y ? -? as x ? -? and x ? ?.y = x3 - 5x2 - 2x - 10
A. y ? -? as x ? -?; y ?- ? as x ? ? B. y ? -? as x ? -?; y ? ? as x ? ? C. y ? ? as x ? -?; y ? ? as x ? ? D. y ? ? as x ? -?; y ? -? as x ? ?
Mathematics