Hello from MrBillDoesMath!
Answer:
a(n) = -3n , n>= 1
Discussion:
a(1) = -3
a(2) = -6
a(3) = -9
a(4) = -12
The pattern looks like a(n) = -3n
Thank you,
MrB
The probability that a student participates in both sports and drama is
.
<h3>What is the formula for P(AUB), where A and B are any two events?</h3>
If
and
are any two events, then the probability of the joint event
is given by the following formula: 
Given that 42% of the students participate in sports and 25% of the students participate in drama and 53% of the students participate in either sports or drama.
Suppose
denotes that "a student participates in sports" and
denotes that "a student participates in drama".
So, we have
,
,
.
We want to find the probability that a student participates in both sports and drama i.e., we want to find
.
By the above formula, we obtain:

Therefore, the probability that a student participates in both sports and drama is
.
To learn more about probability, refer: brainly.com/question/24756209
#SPJ9
Answer:
Coordinates involve two points. (x,y)
Too find a pair (coordinate), use the x and y lines on the graph and see where the point falls.
For example
Point A is number <em>1</em><em> </em><em>on</em><em> </em><em>the</em><em> </em><em>y</em><em> </em><em>axis</em>
<em>number</em><em> </em><em>-</em><em>4</em><em> </em><em>on</em><em> </em><em>the</em><em> </em><em>x</em><em> </em><em>axis</em>
<em>So</em><em>,</em><em> </em><em>you</em><em> </em><em>would</em><em> </em><em>write</em><em> </em><em>the</em><em> </em><em>coordinate</em><em> </em><em>out</em><em> </em><em>at</em><em> </em>
<em>(</em><em>-</em><em>4</em><em>,</em><em>1</em><em>)</em>
The y axis values are the second point, so after you plot all of letters, use the y axis numbers and number them from least to greatest so you can find the mystery word.
Answer:
7837
Step-by-step explanation:
1000 + 6901 - 64 = ?
=7837