Answer:
The major-axis runs along the x-axis.
Step-by-step explanation:
X = 2 +- √4 -32 )/2 = 1 +-i√7
Answer is <span>d. 1 plus i square root of 7
Hope it helps!
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Answer:
-1/2
Step-by-step explanation:
The equation is in slope intercept form:
y=Mx+b
where m is the slope and b is the t intercept
Compare y=Mx+b to the equation y=-1/2x-5
-1/2 is being multiplied by x, so it is the slope.
Answer:
P(X = 4) = 0.1876
Step-by-step explanation:
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

In which
is the number of different combinations of x objects from a set of n elements, given by the following formula.

And p is the probability of X happening.
In this question:

We want P(X = 4). So

Answer:
3. 100% because you know they will all land tails.
4. 30 ish% Because you know the quarter will land making the other two a 50/50 chance.
The 2nd one might not be right