I hope this helps you
x^2-6x+9= -1
(x-3)^2= -1
(x-3)^2=i^2
x-3=i
x=3+i
x=3-i
or we can find disctirminant
x^2-6x+10=0
a=1
b= -6
c=10
disctirminant=b^2-4ac
disctirminant=(-6)^2-4.1.10
disctirminant=36-40
disctirminant= -4
i^2= -1
x1,2= -b (+,-) square root of disctirminant /2a
x1= -(-6)+square root of -4/2.1
x1=6+2i/2=3+i
x2= -(-6)-square root of -4/2.1
x2=6-2i/2=3-i
Answer:
2/5 0
Step-by-step explanation:
Step-by-step explanation:
In ∆ABC, if <A is 90° and <B is 45° then hypotenuse is BC.
Now,
Cos B= base/height
Cos B= AB/ BC
BC= AB/cos 45°.
5-3 5 3 20 3
__= _-_ = __-__=
4 1 4 4 4
17
___
4
I divide it the number to get the same denominator and do it on the top too.
Supposing all were child tickets:
145x$5=$725
$1153-$725=$428 (diff. between above price and original price)
$9-$5=$4 (diff. between adult price and child price)
$428÷$4=107 (no. of adult tickets)
Ans: 107