In circle o, su is a diameter. circle o is shown. line segment s u is a diameter. line segments r o and t o are radii. points r and t are between points s and u. angles s o r and t o u are congruent. angle r o t is (13 x + 15) degrees and angle t o u is (9 x + 5) degrees. what is marc s t? 100° 108° 130° 160°

The coordinate grid shows points a through k. which points are solutions to the system of inequalities listed below? 2x+ ys 10 2x 4y < 8 oa c, d, k o e, f. g, j oa, c, d, h, k oe, f. g, h, j

Simplify the expression. -2/5(10+15m-20n)

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?