given that a+b=7 and ab=12,find the value of 2a(square)b+2ab(square)

given that a+b=7 and ab=12,find the value of 2a(square)b+2ab(square) (a) h is less than 4(b) fifteen is equal than twice b.(c) given that A=bh,find the value of A when b=a and h=7(d) given that T=2兀/s,find the value of T when 兀=22/7 and s=1/7 Given that a,b,c are three consecutive odd numbers and b*b*b=1331,then the value of ac is(). 一道高数题 Find A and B given that the function f(x) is differentiable at x=1f(x)= x^3 (x1) They requested ___ they get enough food and ___ they be given better housing.A./;whether B.that;/ C.that;what D./;that选哪个,为什么? there are 4 people ,A ,B,C and D .given that there is a 3-yuan difference in age between A and C,there are 4 people ,A ,B,C and D .given that there is a 3-yuan difference in age between A and C,a 3-yuan difference B and D ,a 2-yuan difference between A 2X2 matrix M is given by(a b)(c d)Given that a = 13,b = 33 and c = 24,what is the value of d such that the matrix M is singular.Give your answer to the nearest integer. insisted that they be given怎么用The workers insisted that they _________ a free lunch every noon and the boss had to give in.A.be given B.being given C.will be to give D.would be giving最后一个选项改成would be given的话是不是这个 Each boy and each girl------a new book A.are given B,was given C.being given D.were given我选的是C..对吗? That's a given! 是什么意思? The workers insisted that they _________ a free lunch every noon and the boss had to give in.A.be没把握的别进.A.be given B.being given C.will be to give D.wounld be giving 填空~(26 21:34:57)Given that a,b,c are three consecutive odd numbers and b的三次方=2197,then the value of ac is (    ).  Multiple-Choice:Given that a triangle with vertices A(2,1),B(4,5),and C(6,1) is reflected across Given two sets A,B,the symmetric difference of A and B is denoted byA△B and defined as A△B = (A − B) ∪ (B − A).For very sets A,B,C,prove that:A△(B△C) = (A△B)△C 翻译：对于集合A、B,有：A△B = (A − B) ∪ (B &# tom told me that he____ john and ____him the message already.A:had met;given B:met;gave选什么?为什 Bill is pleased ________you have given him and ________you have told him .A.what,all what B.with what,that C.that,all that D.with what,all that 美国大学空间向量问题,没看懂题目.Find w1 = proj(a,b) and the ve美国大学空间向量问题,没看懂题目. Find w1 = proj(a,b) and the vector orthogonal complement w2 given that a = 2i - j + k and b = i + j + k Find the equation of a line in standard form given:(a) The line is perpendicular to 3x - 5y = 7 and passes through (-5/2, 8/3).(b) The line passes through (a,b) and (c,d).