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3 years ago

F(x)=3x-6 how do I figure this out

Mathematics

2 answers:

ValentinkaMS [17]3 years ago

4 0

Replace f(x) into y
3x-6
x=3y-6
y=2+x/3
solve for y and replace f ^-1 (x)
f^-1(x)=2+x/3

hope this helps

vitfil [10]3 years ago

3 0

F(x) = 3x-6
add 6 to each side
6=3x
dived each side by 3
2=x

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3 years ago

If you start with 85 milligrams of Chromium 51, used to track red blood cells, which

zysi [14]

About 92 days are taken for 90 % of the material to <em>decay</em>.

The mass of radioisotopes ( $m$ ), measured in milligrams, decreases exponentially in time ( $t$ ), measured in days. The model that represents such decrease is described below:

$m(t) = m_{o}\cdot e^{-\frac{t}{\tau} }$ (1)

Where:

$m_{o}$ - Initial mass, in milligrams.
$m(t)$ - Current mass, in milligrams.
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In addition, the time constant is defined in terms of half-life ( $t_{1/2}$ ), in days:

$\tau = \frac{t_{1/2}}{\ln 2}$ (2)

If we know that $m_{o} = 85\,mg$ , $t_{1/2} = 27.7\,d$ and $m(t) = 8.5\,mg$ , then the time required for decaying is:

$\tau = \frac{t_{1/2}}{\ln 2}$

$\tau = \frac{27.7\,d}{\ln 2}$

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$t = -\tau \cdot \ln \frac{m(t)}{m_{o}}$

$t = -(39.963\,d)\cdot \ln \frac{8.5\,mg}{85\,mg}$

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2 years ago

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Step-by-step explanation:

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Hope This Helps :)

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3 years ago

The diameter of a bicycle wheel is 20 inches. Which measurement is closest to the circumference of the wheel

algol [13]

Answer:

62.8 inches

Step-by-step explanation:

✓We can determine the

Circumference of the wheel of the bicycle using the expression below;

Circumference= (πd) ...........eqn(1)

Where d= diameter = 20inches

If we substitute the value of " diameter" into eqn(1)

Circumference = (π × 20)

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(Where π= 3.142)

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