Question 23 of 2 Use the formula to help you answer the question below. Do not include units
in your answer
Rate Time = Distance
How many km per hour must you swim If you want to cross a 3-km channel in
2 hours

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

21

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20%

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answer: $1794

step-by-step explanation: