Which angles are represented by the same point on the unit circle as \small \frac{\pi}{4}? Select all that apply. a
\small -\frac{7\pi}{4}

b
\small \frac{3\pi}{4}

c
\small \frac{5\pi}{4}

d
\small \frac{9\pi}{4}

e
\small -\frac{\pi}{4}

The fraction of defective integrated circuits produced in a photolithography process is being studied. a random sample of 300 circuits is tested, revealing 17 defectives. (a) calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool. round the answers to 4 decimal places. less-than-or-equal-to p less-than-or-equal-to (b) calculate a 95% upper confidence bound on the fraction of defective circuits. round the answer to 4 decimal places. p less-than-or-equal-to

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.

3c2 + 2d)(–5c2 + d) select all of the partial products for the multiplication problem above.