Every day at lunch, Barbara swims laps in the pool for one hour. The number of laps she is able to swim in the hour depends on the speed at which she swims. I = the number of laps Barbara is able to swim in one hour s = the speed at which Barbara swims Which of the variables is independent and which is dependent? A. s is the independent variable and is the dependent variable B. I is the independent variable and s is the dependent variable​

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.