Answer:350,000
Step-by-step explanation:
-15 - (-3) + 6
-15 - (-3) = -15 + 3 = 3 - 15 = - 12
-12 + 6 = 6 - 12 = -6
Your answer is -6
9514 1404 393
Answer:
mutually exclusive
Step-by-step explanation:
The formula of interest is ...
P(A or B) = P(A) + P(B) - P(A and B)
Filling in the given values, we have ...
9/10 = 2/5 + 1/2 - P(A and B)
Solving for P(A and B), we get ...
P(A and B) = 2/5 +1/2 -9/10 = 4/10 +5/10 -9/10
P(A and B) = 0
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Events are mutually exclusive when <em>they can never happen at the same time</em>. That is, P(A and B) = 0.
The events A and B are mutually exclusive.
Given, the rate of growth of St. Augustine grass is
cm per week.
We have to find the number of weeks that the grass grow to
cm.
Let's take the number of weeks be x.
In 1 week the grass grow =
cm
So in x weeks the grass grow =
cm
So we can write,

To solve it for x, first we will move 7 to the right side by multiplying it to both sides. We will get,



Now to get we will move 4 to the right side by dividing it to both sides. We will get,


So we have got the required answer.
After 3 weeks the grass grow
.
Answer:
3
Step-by-step explanation:
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