Answer:
-2a
Step-by-step explanation:
-a+-a
=-2a
Answer:
From x->-∞, y->-∞
From x->+∞, y->+∞
Step-by-step explanation:
Look at the graph.
As x value get larger, the graph curves upward infinitely, thus positive infinity y values as x value get larger and positive.
As x value get more negative, the graph curves downward infinitely, thus negative infinity y values as x value get more negative.
Answer:
See step by step explanations fir answers.
Step-by-step explanation:
Given that;
n=6 , m=2 , z1 is the average of the elements of x , and z2 is the average of the first three elements of x minus the average of fourth through sixth elements of x
So, Let d=n∧28, d′=n∧22.
We have nd=10, nd′=20n
so
n=10d=20d′nwhenced=2d′.
On the other hand, d is a divisor of 28, and above shows d′ is, too. As it is also a divisor of 22, the only possibilities are d′=1, d′=2, corresponding to d=2, d=4.
However, if d=2, n=20, and 20∧28=4, not 2. So the only solution is d=4, and n=40.
Answer:
Yes the are similar asa
Step-by-step explanation:
Answer:
.
Step-by-step explanation:
Arithmetic sequence
.
First step, find its difference
.
So, we get
.
Finally, Let's find the 75th term