true or false the area of a regular hexagon can be found by breaking the hexagon into 6 congruent triangles and then taking the
2 answers:
False - following the formula to find sum of all interior angles, , with <em>n</em> representing the number of sides, we can see that for a hexagon there's a sum of
degrees. Then, if we broke it into 6 congruent triangles, we can see that 720/6 = 120, which is not the sum of the interior angles of a triangle.
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Answer:
<u>Step-by-step explanation:</u>
There are 61 boys --> 38 girls
A) 19 chose football: 5 are girls --> 14 are boys
B) 38 girls: 28 chose running, 5 chose football --> 5 girls chose tennis
C) 31 students chose tennis: 5 are girls --> 26 are boys.
D) 61 boys: 14 chose football, 26 chose tennis --> 21 boys chose running.
Total running = 21 boys + 28 girls = 49
Total students = 99
Answer:
12.5 hours
Step-by-step explanation:
= 12.5
Recall your d = rt, that is, distance = rate * time
now, bear in mind, that hmm, if say, the boat's speed in still water is say "r", when the boat is going upstream, is not really going at "r" speed, but the stream is subtracting from it, so is really going at " r - 4 " mph fast, since the speed rate of the stream is 4
now, when the boat is going downstream, is going "with" the stream, so is really going faster than "r", is actually going at " r + 4 " mph fast
now, the time it took upstream, is the same time it took downstream... say it took "t" time
thus
solve for "r"
now, bear in mind, that hmm, if say, the boat's speed in still water is say "r", when the boat is going upstream, is not really going at "r" speed, but the stream is subtracting from it, so is really going at " r - 4 " mph fast, since the speed rate of the stream is 4
now, when the boat is going downstream, is going "with" the stream, so is really going faster than "r", is actually going at " r + 4 " mph fast
now, the time it took upstream, is the same time it took downstream... say it took "t" time
thus
solve for "r"