(-3i + 4)(3i + 4)
Use the FOIL method
multiply the Firsts: -3i * 3i = -9i² = because i² = -1 ⇒ -9i² = -9(-1) = 9
multiply the Outers: -3i * 4 = -12i
multiply the Inners: 4 * 3i = 12i
multiply the lasts: 4 * 4 = 12
9 - 12i + 12i + 12 = 21
$1,240-$150-$244-$300-$50=$496 left
496/1240=x/100
x=49600/1240=40%
All you have to do is use proportions.
=)=)=)
C since the value of the original changed by moving 2 units to the left, thus x-2 and y+5 since it moved 5 up
The population the surveyors are really interested in are " All registered voters in Raleigh" and the population of the city actually represented by this survey are "All the registered voters with telephones in Raleigh".
Total registered voters
.
A telephone poll of
randomly selected registered voters was conducted.
Number of people who said to vote for Brown = 308 .
Number of people who said to vote for Feliz = 214 .
Here, All registered voters in Raleigh describe the population the surveyors are really interested in.
And, the population of the city actually represented by this survey are all the registered voters with telephones in Raleigh.
Learn more about population survey here:
brainly.com/question/15430643?referrer=searchResults