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Algebra II

solving equations with powers
Im trying to solve the equation
$3 \cdot 2^{- 2 / x} + 2 \cdot 9^{- 1 / x} = 5 \cdot 6^{- 1 / x}$
So far I tried applying logaritmas but it didnt prove helpful...are there any other ways?

Buszmenan 2022-09-06

What is the permutation formula for P(12,8)?
$a .12! b . \frac{8!}{12!} c . \frac{12!}{(12 - 8)!} d . \frac{12!}{8!}$

Robaffonadorkdh 2022-09-06

A baseball is projected upward from the top of a 448-ft-tall building with an initial velocity of 48 feet per second. The height, h,of the baseball above the ground at any time, t, in seconds, is given by the equation $h (t) = - 16 t^{2} + 48 t + 448$
a) Find the height after 2 seconds
b) Find the height after 4 seconds
c) Find the time it takes for the baseball to strike the ground

dansleiksj 2022-09-06

Select a tool or technique such as manipulatives or mental math to find A(7) when $A (n) = A (n - 1) + 15$ and $A (1) = - 20. A (7) =$ (Simplify your answer.) Review progress of 9 Back Question 1. Trenches Telegra..doc Trenches Telegra..doc Search for anything

flatantsmu 2022-09-06

Solving $F (x) = 0.3$ where $F (x) = 1 - \frac{200^{2.5}}{x^{2.5}}$
Consider the function
$F (x) = 1 - \frac{200^{2.5}}{x^{2.5}} .$
We want to solve $F (x) = 0.3$
1.Since $F (x) = 0.3$ then we can say, $2.5 \ln (\frac{200}{x}) = 0.7$
2. $\ln (\frac{200}{x}) = 0 .28$
3. $e^{\ln (\frac{200}{x})} = e^{.28}$
4. $\frac{200}{x} = e^{.28}$
5.Hence $x = \frac{200}{e^{.28}}$
6.The answer appears to be about $x = 151.16$
Just to sum it up, the actual answer is $230.66$ , and this was achieved by taking the 2.5th root instead of doing the natural log. Why wasn't it the same answer?

listgrein6u 2022-09-05

A Web music store offers two versions of a popular song. The size of the standard version is 2.6 megabytes (MB). The size of the high-quality version is 4.5 MB. Yesterday, the high-quality version was downloaded four times as often as the standard version. The total size downloaded for the two versions was 4532 MB. How many downloads of the standard version were there?

Spactapsula2l 2022-09-05

Please show all work step-by-step and explain your reasoning neatly.
$\frac{15}{14} \cdot \frac{9}{5} \cdot \frac{7}{18} =$

metal1fc 2022-09-05

Is $y = \frac{2}{x}$ an inverse variation?

Tony Burgess 2022-09-05

What is the constant of proportionality in y=9/x?

nikakede 2022-09-05

If y varies inversely as x, how do you find the constant of variation if y=36 when x=9?

treallt5 2022-09-05

Solve the equation and check the solution.
$\frac{1}{7} x - \frac{47}{14} = \frac{7}{2} x$

Ciolan3u 2022-09-05

Assume that y varies inversely as x. If y = 7 when x = -3, how do you find y when x = 7?

Liam Keller 2022-09-05

How do you write an inverse variation equation given y = 10 when x = 2?

inhiba5f 2022-09-05

Solve by substitution method.
x+y=4
$x^{2} + y^{2} - 4 x = 0$

Natalya Mayer 2022-09-05

If x varies inversely as y and directly as t, and x = 12 when t = 10 and y = 25, how do you find y when x is 6 and t = 3?

equipokypip1 2022-09-05

Evaluate. $\ln \sqrt{x + 2} = 1$

Sasha Hess 2022-09-05

Find the last three digits of the product of the positive roots of $\sqrt{1995} x^{\log_{1995} x} = x^{2}$

Hugh Soto 2022-09-05

How is inverse variation used in everyday life?

Ciolan3u 2022-09-05

If y varies inversely as X^2 and X = 9 when y = 64, how do you find the value of y when x = 4?

genestesya 2022-09-05

If y varies inversely with x, and y = 5 when x = 7, what is the value of y when x = 4?

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