![yurionice42069](/avatars/13189.jpg)
yurionice42069
04.07.2020 •
Mathematics
How many terms are in the geometric sequence having a first term of 2, a last term of 32, and a common ratio of -2?
Solved
Show answers
More tips
- F Food and Cooking How to Make Sushi: A Step-by-Step Guide to Perfectly Rolled Delights...
- C Cities and Countries Which Country has the Most Expensive Visa?...
- F Family and Home Tender Care for Your Parquet: Is it Possible to Clean Parquet?...
- S Society and Politics Is It Fact or Fiction? Let s Talk About Anton Chekhov s Pseudonym...
- S Sport Playing Bowling: Rules and Advice for Novices...
- C Computers and Internet How to Properly Repartition a Hard Drive?...
- A Auto and Moto What Is the Cost of Customs Clearance for a Car in Russia?...
- L Leisure and Entertainment Should You Buy a Ceramic Knife?...
- C Computers and Internet How to easily and quickly disable Firebug in Gmail and Google Docs...
- G Goods and services How to sew a ribbon: Tips for beginners...
Answers on questions: Mathematics
- M Mathematics You get a zero on an assignment, how many 100 before getting to an A average...
- M Mathematics Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release...
- M Mathematics In the triangles below, m...
- H History Identify the countries that were soviet satellite states....
Ответ:
3
Step-by-step explanation:
first term a= 2
last term tn= 32
common ratio r= -2
number of terms
= tn=ar^n-1
32 = 2*(-2)^n-1
divide both sides by 2
32/2 = 2*(-2)^n-1/2
16 = (-2)^n-1
Then...use 16 in the power of 2
(-2)^4 = (-2)^n-1
The bases (-2), cancels out
so we have: 4 = n-1
collect like terms
4-1 = n
3 = n
n= 3
Ответ:
66.3 mL
Step-by-step explanation:
17.4% of 381 mL is ...
0.174 × 381 mL = 66.3 mL