Let event A be the first light being red.
Let event B be the second light being red.
P(A) = 0.48
P(A & B) = P(A) * P(B) = 0.35
P(B) = 0.35 / P(A)
P(B) = 0.35 / 0.48
P(B) = 0.73
Since the lights are independent, P(B|A) = P(B) therefore d is the correct answer.
1) The cost of 15 kg sugar is; Rs. 1320
2) The number of days that it would take the provisions to last for 75 students is; 14 days
<h3>Proportion </h3>
1) Cost of 10 kg = Rs. 880
Thus, by proportion the cost of 15 kg sugar will be;
(15 × 880)/10
>> 13200/10
>> Rs. 1320
2) We are told that;
50 students = provisions for 21 days
Thus for 75 students the number of days the provisions would last them is gotten by proportion;
(50 × 21)/75
>> 1050/75
>> 14 days
Read more about proportions at; brainly.com/question/1781657
Answer:
35x-35y+21 is the simplified expression
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:
Step-by-step explanation:
Point-slope form: when the given point is and is the slope
Plug in the point
Plug in the slope
I hope this helps!