Answer:
<h2>x = -1 and -4.</h2>Explanation is given in the above photo.
Select all the correct answers.
1 answer:
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Answer:
Step-by-step explanation:
The binomial probability formula shown has variables which represents:
n is the total number of trials (here, we flip penny 9 times, hence n = 9)
k is the number we want to find (here, we want the probability of 3 heads, so k = 3)
p is the probability of success (here, success means getting heads. So, in a coin flip the probability of heads is always 1/2, so p = 1/2)
<em>Putting all the info into the equation and using formula for nCk, we get:</em>
The first expression shown in the answer choices is right.
To solve this problem, we need to know the formula for the nth term of an arithmetic sequence. The formula is 
= t₁ + (n-1)d, with being the nth term, t₁ being the first term, and d being the distance between terms. Now we can substitute values to figure out what is. When substituting, the equation becomes:
= 12 + 29(-6)
= -162
That means that the 30th term in this arithmetic sequence is -162.
That means that the 30th term in this arithmetic sequence is -162.
Answer:
Step-by-step explanation:
Given:
Each day M.r Cole used can of paint =
Total number of days he used can of paint = 7
Questioned asked:
How much paint Mr. Cole used after 7 days?
Solution:
By applying unitary method:
M.r Cole used can of paint in one day =
M.r Cole used can of paint in 7 days =
=
=
Therefore, M.r Cole used can after 7 days.