Circle p is shown. tangents r s and t s intersect at point s outside of the circle to form angle x. the first arc formed is arc y, and the second arc formed is arc z. which statement is true regarding the diagram of circle p? the sum of y and z must be 2x. the sum of y and z must be one-halfx. the difference of z and y must be 2x. the difference of z and y must be one-halfx.

Write two subtraction equations that are equivalent to 5 + 12 = 17.

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

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte