Answer:
It is 1.159
Approximately 1.2
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given


Required
Eliminate a
Multiply the first equation by -4

Add to the second equation

Solve brackets

Open bracket


At this point, a has been eliminated;
From the list of given options, the option that answers the question is 
Answer:
2,3 &13
Step-by-step explanation:
78=2times39=3times13
therefore the prime factors of 78=2,3,13
Answer:
Step-by-step explanation:
Given:
we have 10 coins
nine of them are fair coins, which means: 
but one coin is biased it has head on both sides which means 
expected number of heads for tossing 9 coins = 
The coin 10 is biased with only head on both sides
The expected number of heads tossing this coin is = 1
Therefore, the expected number of heads if all 10 coins are tossed together is =
Using indicator random variables:
The number of unbiased coins = 9: n=9

One coin is biased with only head. Therefore:

Finally, 
The expected number of heads = 5.5
<span>g(x) = x3
– x2 – 4x + 4 </span>
<span>You can find
the zeroes by factoring the equation. x<span>2 </span>(x - 1) - 4(x - 1) = 0 </span>
<span>(x2
- 4) (x - 1) = 0 </span>
(x + 2) (x -
2) (x - 1) = 0
x = 2, -2,
and 1
The
following are the key features of g(x):
g'(x) yields
the slope
g''(x) yields
the concavity
g'(x) = 0 provides
the critical points
<span>g''(x) = 0 provides the point of inflection</span>