Answer:
we conclude that:
Hence, the last option i.e. 
is correct.
Step-by-step explanation:
Given the expression
Combining the radical expressions
let us first solve
Apply radical rule: 
Apply radical rule: 
Thus,
similarly solving
Apply radical rule:
Apply radical rule:
Thus,
so we get
so the expression becomes
∵ ,
∵ 
Therefore, we conclude that:
Hence, the last option i.e. is correct.
If a fair coin is tossed three times, sample = 2^3 = 8 (hhh, hht, hth, thh, htt, tht, tth, ttt) where h=head and t=tail.
Probability of getting one:
Outcomes with one head (h) = 3
P(1 h) = 3/8 = 0.375
Answer: X= i, -i, 2i, -2i
Step-by-step explanation:
The roots are x values when the graph intersects the x axis.
Answer: 2.66 hours
Step-by-step explanation:
Shawana can paint a fence in 8hours which means in one hour she can paint 1/8 of a fence.
Kevin can paint the same fence in 4 hours, so in one hour he can paint 1/4 of the fence.
Together in 1 hour they can paint 1/8 + 1/4 = 3/8
Total hours for painting is 3/8 or 2.66 hours
Answer:
Step-by-step explanation:
10/4=2.5
8/2.5=3.2
3.2 hours
