Provide an appropriate response.If Z has a standard normal distribution, find P(Z > -1.81).
Fill in the blank(s) with the appropriate word(s).
0.9658
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The polar equation of the graph is either r = a + b cos ? or r = a + b sin ?, a > 0, b > 0. Match the graph to one of the equations. 
A. r = 3 + 4 cos ? B. r = 4 + 3 cos ? C. r = 3 + 4 sin ? D. r = 4 + 3 sin ?
Determine the number of outcomes as requested.If a single card is drawn from a standard 52-card deck, in how many ways could it be an ace or a spade?
A. 4 B. 1 C. 17 D. 16
Solve the problem.A rectangular board is 13 by 20 units. The foci of an ellipse are located to produce the largest area. A string is connected to the foci and pulled taut by a pencil in order to draw the ellipse. Find the length of the string.
A. 13 units B. 40 units C. 20 units D. 26 units
Express the statement as an equation involving the indicated variables.The perimeter P of a rectangle is twice the sum of its length l and its width w.
A. P = lw B. P = 2(l + w) C. P = 2lw D. P = l + w