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题目内容
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 3x = 2y = 5, then 24x(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 $$[(\frac{p}{q})^{2}$$
$$2^{n}+2^{n}+2^{n}+2^{n}=4^{n+3}$$ Quantity A n Quantity B 4
Quantity A $$\frac{0.91^{8}}{0.91^{9}}$$ Quantity B 1
$$[1.37·(10^{24})]$$·$$[2.6·(10^{-22})]$$=_____
If {$$\frac{2^{-n}}{3}$$}·{$$\frac{3^{-n}}{2}$$}=$$\frac{1}{36}$$, what is the value of n?_____

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