assume+the+role

翟科尝626Assume that the reciprocal of m - 2 is - 1/4(1/m+2) ,them the value of m^2+1/m^2 is - _______. -
令宙腾18366342925 ______[答案] Assume that the reciprocal of m-2 is -1/4(1/m+2) ,them the value of m^2+1/m^2 is _97/36_.这个题的意思是:假设-2的倒数是-1/4(1/m+2) ,那么m^2+1/m^2 的值是(97/36)由题意可知:4(1/m+2)=2,解这个方程得m=...

翟科尝626投资学计算,速回计算 Suppose that the borrowing rate is 9%. Assume that the S&P 500 index has an expected return of 13% and standard deviation of 25%, ... -
令宙腾18366342925 ______[答案] Suppose that the borrowing rate is 9%.Assume that the S&P 500 index has an expected return of 13% and standard deviation of 25%,that Rf= 5%,Consider the following a risky fund(E(r) = 11%,standard devi...

翟科尝626...当他们正好靠在一起的时候,求他们间的吸引力.(原题:Calculate the attractive force between a pair of K+ and Br.Ions that just touch each other.Assume the... -
令宙腾18366342925 ______[答案] 这应该是一道估算题:可以直接用F=k*q1*q2/r^2; 这里的r应该是K+和Br-的离子半径之和 K+带一个正电荷,Br-带一个负电荷,所以q(K+)=-q(Br-)=1.6*10^-19C k=9*10^9 N*m^2/C^2 带入计算即可(注意单位要化成标准单位,如长度要化成 米)

翟科尝626如果有投资函数 I=Ia—er,r为利率,那么e是 - 上学吧普法考试
令宙腾18366342925 ______ A.a[1][3] //a的最后一个元素是a[1][2],这个越界了 B.a[2][2] //同A,越界了 C.a[2][!-1] //!-1就是0 ,那这个就是a[2][0],一样越界了 D.a[-1][3] //这个就是a[0][0] ,正确 []在C语言里实际上是个地址偏移操作符,a[-1][3]就是读取从a这个地址开始偏移-1个int[3],然后在偏移3个int的地址的内容, 总共偏移的int单位就是-1*3+3==0, 那就是a[0][0]了

翟科尝626Mortgage and Amortization Problem---一道英文数学题Assume that a person borrows $150,000 to buy a house.The annual interste rate is 6.6%.Calculate the ... -
令宙腾18366342925 ______[答案] rate不变为6.6%,30年所以,150 000 x6.6%=9900 dor/ year 9900 x 30 =297000 dor 再加上本金就是297000+150000=447000 dor 一年12个月,三十年,所以 30x 12=360 months 总金额除以时间 447000除以360=1241.67=1241(3.s.f.) 不知道对不对,...

翟科尝626Assume that the reciprocal of m+2 is 1 m +2 ,them ... -
令宙腾18366342925 ______ 根据题意得,(m+2)*( 1 m +2 )=1,(1+2m)(m+2)=m,m 2 +2m+1=0,∴m=-1,∴ m 2 + 1 m 2 =(-1) 2 + 1 (-1) 2 =1+1=2,故答案为2.

翟科尝626Assume f is a differentiable function whose graph passes through the point (1,4).If g(x) = f(x^2) and the tangent line to the graph of f at (1,4) is y=3x+1,determine ... -
令宙腾18366342925 ______[答案] 依题目所示,f(x)过点(1,4)且在点(1,4)处的切线为y=3x+1, 因此有f'(x)=3x+1,两边进行积分得到 f(x)=1.5x^2+x+C 由于f(x)过点(1,4),将x=1,y=4代入上式,得C=1.5 故f(x)=1.5x^2+x+1.5 g(x)=f(x^2)=1.5(x^2)^2+x^2+1.5=1.5x^4+x^2+1.5 g'(x)=6x^3+2x

翟科尝626java高手帮帮忙!!!!what are the values of the following expressions? In each line, assume that String s = ＂Hello＂;String t = ＂World＂;a. s.lenght() + t.... -
令宙腾18366342925 ______[答案] a. 10 b. e c. llo d. HelloWorld e. WorldHello

翟科尝626You+should+r_____these+books+in+two+weeks线上该填什么 -
令宙腾18366342925 ______[答案] read 阅读 你应该在两周内阅读这些书