Health insurers are beginning to offer telemedicine services online that replace the common office visit. a company provides a video service that allows subscribers to connect with a physician online and receive prescribed treatments. the company claims that users of its online service saved a significant amount of money on a typical visit. the data shown below ($), for a sample of 20 online doctor visits, are consistent with the savings per visit reported by the company:
95, 37, 43, 108, 86, 58, 59, 52, 43, 79, 51, 99, 96, 77, 76, 81, 96, 103, 56, 85
assuming the population is roughly symmetric, construct a 95% confidence interval for the mean savings for a tele-visit to the doctor as opposed to an office visit.

c. 27 units.

step-by-step explanation:

we are told that in circle a, ∠bae ≅ ∠dae.

we can see from our given diagram that in and ;

, as these are radii of our given circle.

therefore, by sas congruence postulate.

hence, side be will be equal to side de as corresponding parts of congruent triangles are congruent. so we can set an equation to find the value of x as:

now let us substitute x=17 in the expression for the length of be.

therefore, length of be will be 27 units and option c is the correct choice.

2425

step-by-step explanation:

answer: a

step-by-step explanation: the answer is a due to the rule of symmetry; that a line of symmetry must divide a figure into 2 pieces that are the exact same, only reflected over a line of symmetry. b and c do not have lines of symmetry and would not divide the figure evenly, thus making the answer a.