So... hmm bear in mind, when the boat goes upstream, it goes against the stream, so, if the boat has speed rate of say "b", and the stream has a rate of "r", then the speed going up is b - r, the boat's rate minus the streams, because the stream is subtracting speed as it goes up
going downstream is a bit different, the stream speed is "added" to boat's
so the boat is really going faster, is going b + r
notice, the distance is the same, upstream as well as downstream
thus
solve for "r", to see what the stream's rate is
what about the boat's? well, just plug the value for "r" on either equation and solve for "b"
M = (7,6)
Step-by-step explanation:
formula to find mindpoint is
(4,2) = (x1, y1)
(10,10) = (x2,y2)
now substitute those into the formula!
now solve for x & y !!
so now that we have solved for x & y put it in point form and your done !!
point for is (x,y)
and thanks why the Midpoint is (7,6)
Answer:
Adidas pairs are 7, nikes are 10
Step-by-step explanation:
10n+7a=shoes total
7x+3=Nikes x=7
namely, how many times does 3/4 go into 3½? Let's firstly convert the mixed fraction to improper fraction.
Answer:
See explanation
Step-by-step explanation:
1. The student is wrong because imaginary roots always occur in conjugate pairs.
So -4i cannot be the only imaginary root. It has to be accompanied by 4i also.
2. So the 2 roots can be 4i and -4i.
therefore the equation can be
(x - 4i)(x + 4i) = 0
+ 16 = 0