Answer:
n = 4
Step-by-step explanation:
Use the explicit formula of a arthmetic sequence: an = a1 + d(n - 1)
a1 = -70
d = -10
an = -100
Do all of the steps and plug all the numbers with the formula.
So -100 = -70 - 10(n - 1)
-100 = -70 - 10n + 10
-100 = -60 - 10n
-100 + 60 = -40
-40 = -10n
-40/-10n = -10n/10
n = 4
So the final answer is n = 4. Just follow all of the steps and you will understand how I got my answer. Hope it helped!
Answer:
Step-by-step explanation:
Almost correct. I'd write this statement as follows:
"The area of a triangle is the product of the base and height of the triangle, divided by two."
or...
"The area of a triangle is half the product of the base and height."
The Trump tower is 316 feet taller than the Chrysler building.
Answer:
Step-by-step explanation:
4x squared + xy
4x(4x) + xy
12(12) + 3 x 2
144 + 6
= 150
Answer: The 18th term is 295.
Step-by-step explanation: By using the arithmetic sequence formula:
a(n): nth term
a(1): first term
n: term position
d: common/constant difference
a(n) = a(1) + (n - 1)d
You should get an equation of a(n) = 6+(18 - 1)17. By following the order of operations, you should receive an 18th term of 295.