In this problem, you are asked to write a number in
scientific notation. In figures, 78 million would look like this:
78,000,000
To write this to scientific notation, you have to move the
decimal point to the left until you will get a number between 1 and 10.
Here, you will have to move the decimal point 7 times to get
7.8
The exponent of the scientific notation is the number of
times you moved your decimal point. Since the movement of decimal point is
going to the left, you will have a positive exponent.
The scientific notation would look like this:
7.8 x 10^7
Answer:
<h2>
a₂₁ = 188</h2>
Step-by-step explanation:
The n-th term of an arithmetic sequence: 
so:
Answer:
B
Step-by-step explanation:
180-72 = 108
26+46=72
108+72=180
Answer:
The answer is A because when you take both X and Y they are both negative so the only way to keep the answer negative would be to add them.
If you subtract one from the other it adds the opposite
If you multiply them the negatives cancel each other and the answer becomes positive
If you divide them the negatives cancel out and so again the answer would be positive
Step-by-step explanation:
When you add an negative number to another negative number your number stays negative
