HELPPPPP PLZZZZ What real number a and b make the equation true? (a-3)+(b+8)i=3-4i
1 answer:
Answer:
a= 6
b= -12
Step-by-step explanation:
In complex number algebra, you need to sum the real values with each others and the imaginary values with each others.
In order to determine which number is a real value and which one is an imaginary, we must expand the parenthesis terms:
Now we match real numbers with real numbers and imaginary numbers with imaginary numbers:
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6 runners, 3 medals, how many ways to give them? well, runner say 2 could get gold or not, bronze or not and silver or not, and so can any other runnner, and the order "does matter", it makes a distinction, thus, is a Permutation
Answer:
18.326 inches
Step-by-step explanation:
The question is basically asking us to find the arc length that the tip of the minute hand travels. The formula for an arc length is S=θr. So we need th find the angle that the minute hand passes through. We know that there is 360 degrees in a cicle and there is 12 stops around a clock, so divide 360 by 12 to find the degrees the minute hand travels every 5 minutes. We ge that every 5 minutes the hand travels 30 degrees, and 35 minutes is 7*5 so we multiple 30*7 to find the angular displacement, and we get 210 degrees. This equation uses radians though so we have to convert, which can be done doing , and we ge that θ is
so (
)(5)= 18.326 inches