Answer:
a) the common difference is 20
b)
c) the common difference is -13
d)
Step-by-step explanation:
a) what is the common difference of the sequence xn
Looking at the table, we get x_3=16, x_4=36 and x_5= 56
Deterring the common difference by subtracting x_4 from x_3 we get
36-16 =20
So, the common difference is 20
b) what is x_8? what is x_12
The formula used is:
We know common difference d= 20, we need to find
Using we can find
So, We have
Now finding
So,
Now finding
So,
c) what is the common difference of the sequence
Looking at the table, we get a_7=104, a_8=91 and a_9= 78
Deterring the common difference by subtracting a_7 from a_8 we get
91-104 =-13
So, the common difference is -13
d) what is a_12? what is a_15?
The formula used is:
We know common difference d= -13, we need to find
Using we can find
So, We have
Now finding , put n=12
So,
Now finding , put n=15
So,
The possibilities are HH TT HT TH so to get TT you have a 1/4 chance (25%)
Answer:
Last on is the answer!! (The relation is a function, and the range is (-2,-1, 1, 3, 4). Hope this helps:)
Answer:
1150
Step-by-step explanation:
Area of the square is 144m.
Area of the circle is 113.1m.
Subtract A of circle from A of Square which equals 30.9meters. That is your answer.
If you want I can teach you step by step just comment if you want me to...