Shelby is Canoeing in a river. She travels 4 miles upstream and 4 miles downstream in a total of 5 hours. In still water, Shelby can travel at an average speed of 2 miles per hour. To the nearest tenth, what is the average speed of the river's current? Explain

do your own work and don"t cheat.

step-by-step explanation:

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.

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c. histogram

step-by-step explanation:

if e is the midpoint of bd, then bd is 14.

step-by-step explanation: