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1) Aflati suma divizorilor numarului 18. Dar suma divizorilor numarului 81 ?

Exercitiul 2) Scrieti primii 5 multipli ai numerelor 8,18,21,35,64 si 111.

Exercitiul 3) Stabiliti valoarea de adevar a propozitiilor :
a)17:17 b)6|48 c)72:9 d)110 e)12|144 f) 2^2 | 4^3 g)125:25 h)144:12 i)121:11 j)10^|200 k)10 | 7(4^2-2x3) L)436:12 M)8|14 n)4:4 o)4:3 p)15|315 q)19|190 r) (6^2x5-2^2x10) : (3^2+1^569-0^368) S)6^2 | (4^3+ 2x15-2x5^2) t) 60000 : (2^5x5)

Exercitiul 3) Scrieti divizorii numerelor 10,30 si 45 . Precizati care sunt divizorii propii si care sunt divizorii impropii ai fiecarui numar.

Respuesta :

dannielle
D18∈{1,2,3,6,9,18}
suma e 1+2+3+6+9+18= 39

D81∈{1,3,9,27,81}
suma e 1+3+9+27+81=121

2. M8∈{0,8,16,24,32.....}
   M18∈{0,18,36,54,72.....}
   M21∈{0,21,42,63,84....}
   M35∈{0,35,70,105,140...}
   M64∈ {0,64,128,192,256...}
   M111∈ {0,111,222,333,444....}
3. a) A, b) A , c) A, la d) nu e complet, e) A, f) A, g) A, h) A, i) A, k) 10 | 7*10 A, l) F, m) F, n) A, o) F, p) A, q) A, r) (36*5-40) divizibil cu 10, (180-40)=140 divizibil cu 10, A, s) 36| (64+30-50), 36 | 44 F, 60.000 divizibil cu  160
D18∈{1,2,3,6,9,18}
suma e 1+2+3+6+9+18= 39

D81∈{1,3,9,27,81}
suma e 1+3+9+27+81=121

2. M8∈{0,8,16,24,32.....}
   M18∈{0,18,36,54,72.....}
   M21∈{0,21,42,63,84....}
   M35∈{0,35,70,105,140...}
   M64∈ {0,64,128,192,256...}
   M111∈ {0,111,222,333,444....}
3. a) A, b) A , c) A, la d) nu e complet, e) A, f) A, g) A, h) A, i) A, k) 10 | 7*10 A, l) F, m) F, n) A, o) F, p) A, q) A, r) (36*5-40) divizibil cu 10, (180-40)=140 divizibil cu 10, A, s) 36| (64+30-50), 36 | 44 F, 60.000 divizibil cu  160Comments (5+) Report2THANKS2See more comments60.000 divizibil cu 160 e adevarat. multumesc Cu placere! :) l-a d) 1|0 asa era corect simaelena974ozvmlwYou're part of the familyWelcome.2Add a profile picturePut a face to your name.ADD NOW3Show us what you knowGet in there and answer something.Challenges to completeAnswer 5 questions from any subject in 48 hours to collect 50 points0/52d : 00hSTARTAnswer 10 questions from any subject in 48 hours to collect 100 points0/102d : 00hSTARTAnswer 25 questions from any subject in 48 hours to collect 400 points0/252d : 00hSTARTAnswer 5 English questions in 48 hours to collect 50 points0/52d : 00hSTARTAnswer 10 English questions in 48 hours to collect 100 points0/102d : 00hSTARTAnswer 25 English questions in 48 hours to collect 400 points0/252d : 00hSTARTAnswer 5 Mathematics questions in 48 hours to collect 50 points0/52d : 00hSTARTAnswer 10 Mathematics questions in 48 hours to collect 100 points0/102d : 00hSTARTAnswer 25 Mathematics questions in 48 hours to collect 400 points0/252d : 00hSTARTAnswer 5 Social Studies questions in 48 hours to collect 50 points0/52d : 00hSTARTAnswer 10 Social Studies questions in 48 hours to collect 100 points0/102d : 00hSTARTAnswer 25 Social Studies questions in 48 hours to collect 400 points0/252d : 00hSTARTAnswer 5 History questions in 48 hours to collect 50 points0/52d : 00hSTARTAnswer 10 History questions in 48 hours to collect 100 points0/102d : 00hSTARTAnswer 25 History questions in 48 hours to collect 400 points0/252d : 00hSTARTWhat do you need to know?ASK YOUR QUESTIONNew - Mathematics+17 NEW QUESTIONSMathematics  6 pts  1 minute agoLori works as a cartoonist for a teen magazine. The time she spends sketching is given by the equation m=12s where m is the number of minutes and s is the number of sketches if Lori made 3/4 of a... ANSWERMathematics  5 pts  7 minutes agoWhat two ratios are equivalent to 11/12 Mathematics  5 pts  13 minutes agoNeed help ASAP!!!!!! What is the square root of 74*2589089 + 254^25= worth 10pts Mathematics  5 pts  13 minutes agoIn some freshwater organisms there is a structure called a contractile vacuole that regulates water movement into and out of the cell. What explains the existence of the CV? A) The CV prevents...ANSWERMathematics  5 pts  16 minutes agoHow can I explain time tables to my little sister Mathematics  5 pts  28 minutes ago-6(12) I don’t get this what do I do Mathematics  5 pts  31 minutes agoEli wants to combine 0.5 gallon of a 10% acid solution with some 35% acid solution to make a 15% acid solution. How much of the 35% acid solution should Eli add? ANSWERMathematics  5 pts  56 minutes agoIf the following fractions were converted to decimals, which one would result in a repeating decimal? A. 1/9 B. 3/7 C. 3/4 D. 5/11 Mathematics  5 pts  58 minutes agoCould someone please help me answer these maths questions ☺ ***Please show step by step guide to how you got the answer***☺1ANSWERMathematics  6 pts  1 hour agoSolve (−3) ⋅ 2. −6 −5 5 6 Mathematics  5 pts  1 hour agoF(x)= (arc sin x) (x+3) F(x)= arc sin x / cos x F(x)= x^2 5^x / x^3ANSWERMathematics  5 pts  1 hour agoHow do you do a advanced fractionMathematics  5 pts  1 hour agoWhat is the approximate length of arc s in the circle below? Use 3.141 Mathematics  5 pts  2 hours agoPlz help and plz get it write1Mathematics  5 pts  2 hours agoPatty hay 10 times more the second time she plays then 100 times moreANSWERMathematics  12 pts  2 hours agoSolve each of the following inequalities Show your work 8-3x_<1 2x-4_>2 1/4b-3>5 8+3y>5 5a+5<-6 -x/3>18 3x-7_>2 6x-3_<4 3 (a-2)>-2 -2x/6_<4 9b+5 <8...ANSWERMathematics  5 pts  2 hours ago#22 please nobody knows?1 Mathematics  5 pts  2 hours ago#25 and #26 Thank u and plz help1 LOAD MOREAbout usAbout usCareerContactFAQFAQTerms of UseHow do I receive points?Privacy policyCommunity guidelinesScholarships

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