swishy24 swishy24

19-05-2015
Mathematics

Answered

find the 21st term of the arithmetic sequence: 18,23,28,33,...

Answer :

20-05-2015

[tex]18,23,28,33,... \\ a_1=18 \\ d=5 \\ \\ a_n=a_1+d(n-1) \\ a_{21}=a_1+20d \\ a_{21}=18+20 \times 5 \\ a_{21}=18+100 \\ \boxed{a_{21}=118}[/tex]

Answer Link

Other Questions

According to Symbolic Interactionists, who creates society/the social world?A. the individualB. the governmentC. the familyD. sociologists

A number of substances and their chemical formulas are listed below. Check the ones that are compounds.- Neon [tex]$(\text{Ne})$[/tex]- Carbon monoxide [tex]$(\

introduction to respiratory therapy quiz

You have been hired to design a box (rectangular prism) with a volume of 24m^3. The height of the box must be 2m.a) Fill in the blanks of the attached table. Us

Determine the limit of the following function:[tex]\[ \lim_{{x \to 9}} \frac{\sqrt{x} - 3}{x - 9} \][/tex]

Amount of Carbohydrates in Fruit\begin{tabular}{|c|c|}\hline Fruit & Carbohydrates (Grams) \\\hline Apples & 17 \\\hline Bananas & 34 \\\hline Cherr

balancing a chemical equation, one uses all of the following principles except

a) [tex]\[ 0 . \dot{5}=\frac{5}{9} \][/tex]Use the fact above to convert 0.05 to a fraction.b) Using part (a) or otherwise, convert [tex]\[ 0.2 \dot{5} \][/tex]

The Smiths plan to recarpet their family room, which measures [tex]15 \text{ ft}[/tex] by [tex]20 \text{ ft}[/tex]. How many square yards of carpet are needed?A

According to Conflict Theory, what is the cause of social problems such as poverty and racism?A. Failure of the lower class to competeB. Competition between the

(Drinking and driving.) Just after Eric had his last drink, the alcohol level in his bloodstream was 0.20 (milligram of alcohol per milliliter of blood). The al

To help black people adjust to freedom and to help protect their civil rights in 1865 Congress established the: Emancipation Proclamation Freedman's Bureau Reco

Bryon told Mark he couldn't help something. What was it?

How long is 9/8 of a meter

what is the answer to 2 - 6h when h = - 3

the flow of water from a faucet can fill 5 gallon container in 45 seconds. give the ratio of gallons to seconds as rate in gallons per second

the base of a right rectangular prism has an area of 173.6 square centimeter and a height of 9 centimeter. what is the volume in cubic centimeter, of the right

72-(63-8) and (72-63)-8

Rewrite 3/100 as the sum of unit fractions

What is the area of the figure?