Means and Mean Absolute Deviations of Sidney's and Phil's Grades
Sidney
82
Mean
Mean Absolute Deviation
Phil
78
3.28
3.96
Which expression represents the ratio of the difference of the two means to Sidney's mean absolute deviation?
о
82
3.28
4
3.28
4
0.68
O
82
0.68

step-by-step explanation:

step-by-step explanation:

sry but any answer choices

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.