#### 题目列表

For all numbers x and y, the operation фis defined by x ф y = (x+y)*(x-y) + (y-x)*(y+x) +x*y. What is the value of (sqrt12)ф(sqrt3)?
For all positive numbers x, Δx is defined as the cube root of x, and ▽x is defined as the square root of x. If ▽(Δk) = m^2 , then k =
sqrt( 81+81+81+81+81+81+81+81)=
If f(x) = x^2 + 4 and f(2*k) = 36, then which of the following is one possible value of k?
If a spaceship travels at an average speed of 6*(10^10) kilometers per year, how many years will it take the spaceship to travel 3*(10^30) kilometers?
$(4^{6})-(4^{5})\over3$
k is a positive number. If k is twice its reciprocal, and j is twice k, then j*k =
If $w=\sqrt{\frac{1}{16}},x=(\frac{1}{1000})^{\frac{1}{3}} and y=(\frac{1}{4})^{-2}$then
Which of the following is the correct ordering 2*(sqrt13), 4*(sqrt3), 5*(sqrt2) of and 3*(sqrt6) ?
5*(sqrt2) percent of $\frac{1}{(\sqrt200)}$=
What is the Greatest Common Factor (GCF) of 18*(x^8)*(y^20) and 24*(x^12)*(y^15)?
$2+(\sqrt{2})\over2-(\sqrt{2})$
If 5^(x+y)=125 and 3^(x-3*y)=$\frac{1}{9}$, then y=
${[(k^{3})\cdot k\cdot(k^{4})]^{2}\over(k^n)\cdot k}=k^{14}$, then n =
For which of the following functions is $f(\frac{-1}{2})>f(2)$?
If 3*x = 2*y = 5, then 24*x*(y^2) =
[2*(sqrt3)+(sqrt5)]*[2*(sqrt3)-sqrt5)]=
If $x^4=y^16$, then y=
The population of bacteria doubles every 30 minutes.

At 3:30 pm on Monday, the population was 240.

#### Quantity A

The bacteria population at 2:00 pm on Monday

#### Quantity B

40

The numbers p and q are both positive integers.

#### Quantity A

$\frac{p}{q}$

#### Quantity B

$[(\frac{p}{q})^{2}$

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