A+bi is a complex number
(3+2i)(a+bi)=17+7i
remember
i²=-1
so
expand and solve
a is the ral part
bi is the imaginary part
ok so
if Ac+Be=dc+fe where c=c and e=e then A=d and B=f
(3+2i)(a+bi)=17+7i
expand/distribute/FOIL
3a+2ai+3bi+2bi²=17+7i
3a+2bi+2ai+2bi=17+7i
3a-2b+2ai+2bi=17+7i
real parts are 3a-2b
imaginary is 2ai+2bi
so
3a-2b=17 and
2ai+2bi=7i
we need to solve
2nd equation, divide both sides by i
2a+2b=7
multiply by -1 and add to other equation
3a+2b=17
<u>-2a-2b=-7 +</u>
1a+0b=10
a=10
subsitue
2a+2b=7
2(10)+2b=7
20+2b=7
2b=-13
b=-13/2
the complex number is
10-(13/2)i or
10-6.5i
ANSWER: <em><u>D. Icosahedron</u></em>
Yes it is, since 1/5 + 1/5 + 1/5 = 3/5. If a pizza has 5 slices and you take three, that is more than just taking one.
Answer:
C
Step-by-step explanation:
min and max are correctly the same for all 4 answers.
we have 10 data points, so, the median is the mean value between the 2 middle numbers, 19 and 22 : 20.5.
ah, it can be only C or D.
Q1 is the median of the lower half of data points (13 out of 11, 12, 13, 17, 19). and Q3 is the median of the upper half of data points (29 out of 22, 24, 29, 33, 38).
so, C is correct.
Answer:
More detail needed
Step-by-step explanation:
The question is not clear, therefor there is no way to solve it.
