10-02-2015
Mathematics

Answered

A= 13+26+39+...+169

What is the sum of the prime numbers that can divide A ?

A)16 B)18 C)20 D)22 E)24

Answer :

12-02-2015

A= 13+26+39+...+169=

= 13(1+2+3+....+13)=

=13* (13*14)/2=

=13*13*7

=> 13+7=20

So the answer is c)

Answer Link

Other Questions

Discuss the significance of the archaeological findings recently uncovered in a cellar beneath George Washington’s Mount Vernon home, highlighting their implica

Perform the calculation and round to the correct number of decimal places.[tex]\[ \begin{array}{r} 10036.0 \\ +\quad 1.245 \\ \hline \end{array} \][/tex]When ad

Use the following federal tax table for biweekly earnings of a single person to help answer the question below.\begin{tabular}{|c|c|c|c|c|c|c|c|c|c|c|c|c|}\hlin

sin (2x) + cos (x) = 0 interval [0,2pi)

I understood, too, that in ordinary civil administration this oath even forbade me to practically indulge my primary abstract judgment on the moral question of

Refer to the table.\begin{tabular}{|c|c|c|c|}\hline\multicolumn{4}{|c|}{Congressional Voting - Civil Rights Act of 1964} \\\hline& & Yes & No \\\hli

Using Ratio and ProportionDoreen uses 13 apples for every 2 pies she bakes. How many apples will she use for 12 pies?1. Write the steps to find the answer.2. Wh

Give the formula of the conjugate base of [tex]HSO_4^{-}[/tex].Conjugate base: [tex]\square[/tex]

The power in an electrical circuit is given by the equation [tex]$P = I^2 R$[/tex], where [tex]$I$[/tex] is the current flowing through the circuit and [tex][te

On a piece of paper, graph [tex]y + 2 \leq \frac{1}{4} x - 1[/tex]. Then determine which answer choice matches the graph you drew.A. Graph A B. Graph B C. Gra

a classmate states that continental drift could not be possible because it would take far too much force to move tectonic plates. describe the hypothesis scient

what did Gregor Mendel do to study different characteristics in his genetics experiments? like what type of organism and what type of cross?

write the steps you take to add 43 and 35 on a hundred chart.

4q-2q+1 Combine the like terms to get a simpler expression. Please don't give the answer but how to figure it out.

If I put $300 in an account that earns 5.5%, how much will there be in the account at the end of 21 years?

Colleen Truman earns a 4.5% commission on all sales. In June, her sales totaled $40,000. How much did she earn in commission?

Put these numbers in order. Start with the smallest number. 33% 3 8 0.35 1 3

how can you prevent the matter you use from becoming trash

CAN U plz help Which sentence uses a verb that agrees with its subject? A. Three pieces of wheat toast comes with the breakfast platter. B. The bananas on th

while Alexander Hamilton supported merchants Thomas Jefferson was more sympathetic towards the needs of