Suppose a study estimated that 85% of the residents of a town (with an error
range of #12 percentage points at 95% confidence) favor building a new
community center. Which of the following percentages of the town's residents
may favor building a new community center?
O A. 59%
O B. 69%
O C. 79%
O D. 99%

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.