1.if n and p are different positive prime numbers,which of the integers n^4,p^3,and np has(have) exactly 4 positive divisors?a,n^4 onlyb,p^3only c,np onlyd,n^4 and npe,p^3 and np 2.in a certain coding scheme,each word is encoded by replacing each let

1.if n and p are different positive prime numbers,which of the integers n^4,p^3,and np has(have) exactly 4 positive divisors?a,n^4 onlyb,p^3only c,np onlyd,n^4 and npe,p^3 and np 2.in a certain coding scheme,each word is encoded by replacing each let 问几道SAT概率数学题没学过高中概率,希望讲的详细一些.1.If p,r,m,n,t and s are six different prime numbers greater than 2,and n=p*r*s*m*n*t,how many positive factors,including 1 and n,does n have?2.If someone throws a dice twice,o Suppose X has a geometric distribution with parameter p.Show that if n and k are positiveintegers,thenP(X = n + kjX > n) = P(X = k): 问一道英文逻辑题Question 13---16(1) All P and X are N.(2) All N except P are X.(3) No P are M.(4) No R are N.(5) All M are either X or R.(6) No Q are X.13 Which of the following statements must be true if the above six statements are ture?I.N 90n+23p=4523.If n and p are positive integers in the equation above,what is one possible value of n+p?怎么算?是51，118和185 SAT数学题概率题求解答If n and p are to be selected at random from sets N and P respectively,what is the probability the n/(2p) will be a member of set 求讲解解题思路N {12,18,2,6}P {1,4,2,3} If you are quiet and often tired,you should eat _____.[ ] A.tofu B.bean sprouts C.yin foods DIf you are quiet and often tired,you should eat _____.A.tofu B.bean sprouts C.yin foods D.yang foods sat的2道数学题!1.If j k and n are consecutive integers such that 0 求助...555急急..万分感谢.英文数学题if matrix A has dimensions m*n and matrix B has dimensions n*p,where m,n,and p are distinct positive integers,which of the following statements must be true?1,the product BA does not exist2,the product If A and B are independent events where P(A)=0.8,and P(B)=0.5,then P(A or B) is 急 1.The doctor and writer__in Harbin last year.A.is B.are C.was D.were 要有解说The doctor and writer__in Harbin last year.A.is B.are C.was D.wereThey wanted to have __restA.a little minute'sB.minuteC.a few minutes'D.two minuteThey have dif if M is above N and O,and N is above O and below P,which one of the followinA .M is not above.B.O is above N.C.P is above O.D.O is above P. flowers and trees are p () If A and B are mutually exclusive events where P(A)=0.2andP(B)=0.3,then p(A and B) is 英语翻译the number of permutations of n object of which p are alike and q are alike is:------- If you are my one and Q6:Ifσ is unknown,and n 英语翻译M as a bridge between difficult educational programs onone side and students who need considerable motivation on theother.These technologies are welcome additions both to theclassic educational process and for autonomous asynchronou