Answer:
50% of 60 is 30.
100% of 60 is 60, plus 50% is 60+30, which gets you 90.
Answer: you square root it.
5r^2/5 = 80/5 =16
Sqr root of r^2=Sqr root of 16
r=4
Step-by-step explanation:
The Indian Ocean is 270 times greater. I found this by directly dividing the standard notation forms of the numbers.
Answer:
2685
Step-by-step explanation:
The nth term of an arithmetic sequence is:
aₙ = a₁ + d (n − 1)
where a₁ is the first term and d is the common difference.
Here, a₁ = -12 and d = 7:
aₙ = -12 + 7 (n − 1)
aₙ = -12 + 7n − 7
aₙ = -19 + 7n
The sum of the first n terms of an arithmetic sequence is:
S = (n/2) (a₁ + aₙ)
First, we find the 30th term:
a₃₀ = -19 + 7(30)
a₃₀ = 191
Now we find the sum:
S = (30/2) (-12 + 191)
S = 2685
Answer:
11.7
Step-by-step explanation: