if a=3 b=-4,what is the answer to the question a+2ab+1?选项A twenty-eighth Btwenty-eight Cthirteen D eighteen(请说明理由）

If a=3 and b =4,what's the answer to the probiedm:a+b+1=?The answei is(填数词） If A=6+9x^2 and B=7+3x,the what is A in terms of If A=9,B=6,C=4,D=24,E=3,what is the answer to this sum written as a letter? 函数的一对一问题: !(a) If f(2) = 14, what is f^−1(14)? (b) If f^−1(1) = 5, what is f(5)? The mean of a,b and c is 16.if d=14,what is the mean of a,b,c and if a=3 b=-4,what is the answer to the question a+2ab+1?选项A twenty-eighth Btwenty-eight Cthirteen D eighteen(请说明理由） if a and b are both positive intergers and a平方-b平方=7 .what is the value of a 一道英文数学题..if a＜b,then 3^2+4^2+5^2+12^2=a^2+b^2 (符号^是平方) is satisfied by only one pair of positive intergers (a,b).what is the value of a+b? If a ＝3 and b＝4,what's the answer to the problem ：a＋b＋1＝?the answer is （ ）. If A×B=6(A-B),what are the minimum values of A and 1.Does formula f(x)=1/(x²-2) define a function f:R->R?A function Z->R?2.If there are 2187 function f:A->B and |B|=3.What is |A|?3.Give an example of a function f:A->B and A1,A2 in the A for which f(A1∩A2) ≠ f(A1)∩f(A2)4.If A={1,2,3,4,5} an A spring（k=400N/m)is hung vertically.a) if a 5kg mass is attached to the end if the spring and gently lowered to rest position,what will be the stretch of the spring?b) if the 5kg mass is attached and simply dropped,what will be the maximum velocit GRE SECTION 47 7IF a and b are positive and 7a-5=2.what is the greatest possible of ab?10 为什么? If a and b are positive integers and (a^1/2 * b^1/3)^6=432,what is the value of ab?Thanks for explaining it well!How to do it? If a and b are positive integers and (a^1/2 * b^1/3)^6=432,what is the value of ab?有没有通用一点的方法 flex if(a is b){},flex if(a as b){},定义一个变量 var a:b=c, What if there is a world war If number A minus the produce of 3 times as big as B,the result will be 51.If number Aplus the sum of 2 times as B ,the sum will be 111.Question:what is what is B 英翻中