展开全部

题目列表

题目内容
x[(y+75)+(15-y)]=900

Quantity A: x*y

Quantity B: 10
$$\frac{x+1}{x}$$=10

Quantity A

$$(x+1)^{2}$$

Quantity B

12


What is the central angle of the region covered by 25%?
-2 < x < 0

Quantity A

$$x^{3}$$+$$\frac{1}{x^{3}}$$

Quantity B

x+$$\frac{1}{x}$$


x+y > y, x-y < x

Quantity A: x

Quantity B: y
a < b < 0

Quantity A

ab

Quantity B

b-a


0 < s < t

Quantity A

6s

Quantity B

5t


Each of the numbers m, n, and p is greater than 0 and less than 1..

Quantity A

m(n+p)

Quantity B

mn+p


The product of the positive numbers x and y is less than the sum of x and y.

Quantity A

The sum of the reciprocal of x and the reciprocal of y

Quantity B

1


0 < x < y < $$\frac{1}{2}$$, $$\frac{1}{2}$$ < r < t < 1

Quantity A

(x+y)(r+t)

Quantity B

r+t(x+y)


If 2x+y=5, then what is the value of ($$9^{x}$$)($$3^{y}$$)?
$$a=\frac{x}{x+y+z}$$ , $$b=\frac{y}{x+y+z}$$ , $$c=\frac{z}{x+y+z}$$


Quantity A

The average of a, b and c

Quantity B

$$\frac{1}{2}$$


y=$$2^{-r^{2}}$$, where r is a positive integer, which of the following could be the value of y?

Indicate all such values.
$$r^{3}$$-r=r-$$r^{3}$$

Quantity A

r

Quantity B

0


$$m$$ and $$v$$ are negative integers and $$m \lt v$$.

Quantity A

$$7+10^{m}$$

Quantity B

$$5+10^{v}$$


n is an integer

Quantity A

$$(\frac{1}{2})^{n}$$

Quantity B

$$(\frac{1}{3})^{n}$$


A number can be transformed into both a perfect square and a perfect cube. If its units digit is 5, and is less than 100,000, then the number must be?

Quantity A

$$\sqrt[3]{250}$$

Quantity B

6$$\sqrt[3]{2}$$


N family have 2 boys and 1 girl each, M family have 1 boy and 2 girls each. In total, there are 11 boys and 10 girls among these M+N family. What is the sum of N+M?
The equation a$$x^{2}$$+5x-6=0 has two solutions. One is 3 and the other one is c.

Quantity A

a

Quantity B

c


共收录:

25000 +道题目

257本备考书籍

最新提问