求解几道题！！谢谢了！！ - ChaseDream

For which of the following functions is f(a+b)=f(a)+f(b) for all positive numbers a and b?
a. f(x)=x2 b. f(x)=x+1 c. f(x)=根号x d. f(x)=2/x e. f(x)=-3x

According to the directions on a can of frozen orange concentrate, 1 can of concentrate is to be mixed with 3 cans of water to make orange juice. How many 12-ounce cans of the concentrate are required to prepare 200 6-ounce servings of orange juice?
25

If n is a positive integer and the product of all the integers from 1 to n, inclusive, is a multiple of 990, what is the least possible value of n?
Answer:11

In a stack of boards at a lumber yard, the 20th board counting from the top of the stack is immediately below the 16th board counting from the bottom of the stack. How many boards are in the stack?
34
What is the sum of the different positive prime factors of 550?
15
For all positive integers m, m=3m when m is odd and m=1/2m when m is even. Which of the following is equivalent to 9x5?
27

-- by 会员 yexianda (2013/1/13 18:16:48)

For which of the following functions is f(a+b)=f(a)+f(b) for all positive numbers a and b?
a. f(x)=x2 b. f(x)=x+1 c. f(x)=根号x d. f(x)=2/x e. f(x)=-3x

According to the directions on a can of frozen orange concentrate, 1 can of concentrate is to be mixed with 3 cans of water to make orange juice. How many 12-ounce cans of the concentrate are required to prepare 200 6-ounce servings of orange juice?
25

If n is a positive integer and the product of all the integers from 1 to n, inclusive, is a multiple of 990, what is the least possible value of n?
Answer:11

In a stack of boards at a lumber yard, the 20th board counting from the top of the stack is immediately below the 16th board counting from the bottom of the stack. How many boards are in the stack?
34
What is the sum of the different positive prime factors of 550?
15
For all positive integers m, m=3m when m is odd and m=1/2m when m is even. Which of the following is equivalent to 9x5?
27

-- by 会员 yexianda (2013/1/13 18:16:48)

For which of the following functions is f(a+b)=f(a)+f(b) for all positive numbers a and b?
a. f(x)=x2 b. f(x)=x+1 c. f(x)=根号x d. f(x)=2/x e. f(x)=-3x

According to the directions on a can of frozen orange concentrate, 1 can of concentrate is to be mixed with 3 cans of water to make orange juice. How many 12-ounce cans of the concentrate are required to prepare 200 6-ounce servings of orange juice?
25

If n is a positive integer and the product of all the integers from 1 to n, inclusive, is a multiple of 990, what is the least possible value of n?
Answer:11

In a stack of boards at a lumber yard, the 20th board counting from the top of the stack is immediately below the 16th board counting from the bottom of the stack. How many boards are in the stack?
34
What is the sum of the different positive prime factors of 550?
15
For all positive integers m, m=3m when m is odd and m=1/2m when m is even. Which of the following is equivalent to 9x5?
27

-- by 会员 yexianda (2013/1/13 18:16:48)

For which of the following functions is f(a+b)=f(a)+f(b) for all positive numbers a and b?
a. f(x)=x2 b. f(x)=x+1 c. f(x)=根号x d. f(x)=2/x e. f(x)=-3x

According to the directions on a can of frozen orange concentrate, 1 can of concentrate is to be mixed with 3 cans of water to make orange juice. How many 12-ounce cans of the concentrate are required to prepare 200 6-ounce servings of orange juice?
25

If n is a positive integer and the product of all the integers from 1 to n, inclusive, is a multiple of 990, what is the least possible value of n?
Answer:11

In a stack of boards at a lumber yard, the 20th board counting from the top of the stack is immediately below the 16th board counting from the bottom of the stack. How many boards are in the stack?
34
What is the sum of the different positive prime factors of 550?
15
For all positive integers m, m=3m when m is odd and m=1/2m when m is even. Which of the following is equivalent to 9x5?
27

-- by 会员 yexianda (2013/1/13 18:16:48)

For which of the following functions is f(a+b)=f(a)+f(b) for all positive numbers a and b?
a. f(x)=x2 b. f(x)=x+1 c. f(x)=根号x d. f(x)=2/x e. f(x)=-3x

According to the directions on a can of frozen orange concentrate, 1 can of concentrate is to be mixed with 3 cans of water to make orange juice. How many 12-ounce cans of the concentrate are required to prepare 200 6-ounce servings of orange juice?
25

If n is a positive integer and the product of all the integers from 1 to n, inclusive, is a multiple of 990, what is the least possible value of n?
Answer:11

In a stack of boards at a lumber yard, the 20th board counting from the top of the stack is immediately below the 16th board counting from the bottom of the stack. How many boards are in the stack?
34
What is the sum of the different positive prime factors of 550?
15
For all positive integers m, m=3m when m is odd and m=1/2m when m is even. Which of the following is equivalent to 9x5?
27

-- by 会员 yexianda (2013/1/13 18:16:48)

最后一题觉得是答案错了 550=2*5*5*11 2+5+11=18

-- by 会员 citrus橘子 (2013/1/13 19:21:28)