What is the order of operations with real numbers and variables?

相关推荐

• covariance和correlation的区别,在金融里的意义是什么I wonder what is the effect of a covariance's value?Or we figured the value of covariance in order to know whether it is positive or negative only?Unlike the correlation,the value tells us how similar the change between two variables.
• What is the order of operations with real numbers and variables?
• if the function f satisfies the equation f(x+y)=f(x)+f(y) for every pair of real numbers x and y,what are the possible v
• 12.Let f(x) = x^2 + 6x + c for all real numbers x,where c is some real number.For what values of c does f(f(x)) have exa
• What is the order of operations with real numbers and variables?
• put the sentences in the correct order and conplete the dialog.Write the numbers in the blanks.()a So,did he like it?()b He said that the food was too spicy for him.()c What dd you ask Jeff?()d I then asked him if he liked the food there.() e Yes,he agreed and said he went to many places.() f Yeah,he said he ate a durian,but he didn't like it either.()g What else did you ask him?()h I ask him if he liked his trip to Bangkok.() i What did he say?() j
• please help me more thanks ~~~~1 how many prime numbers p are there such that 199p+1 is a perfect square? A 0 B 1 C 2 D 4 E 8 2 HOW MANY PAIRS OF REAL NUMBERS (X,Y) SATISFY THE EQUATION (X+Y)^2=(X+3)(Y-3) A 0 B 1 C 2 D 4 E infinitely many3 What is the area of the polygon formed by all points (x,y) in the plane satisfying the inequality //x/-2/+//y/-2/
• 世界上最好学的语言是哪一种?
• 1.当a满足什么条件时,关于x的方程3x+a=x-7的解是负数?2.如果不等式4x-3a＞-1与不等式3x＞2x+2的解集相同,请确定a的值~