2 years ago

Write an equation that models the linear relationship in the graph?

Mathematics

2 answers:

SVEN [57.7K]2 years ago

4 0

It is A
Y=4x + 4
I got you:)

Nata [24]2 years ago

3 0

Explanation :Y=4x+4

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2 years ago

What is the value of x?<br> 4x − 6 = 18

tensa zangetsu [6.8K]

You need to get rid of -6 by adding 6, you also need to add 6 to 18.

4x = 24

Now you need to get rid of the 4 attached to the variable, you do this by dividing 4 since it is multiplying, also dividing 4 and 24

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So the value of x is 6

Hope this helps! :)

8 0

2 years ago

Read 2 more answers

4y-4=_____<br> 4(y+1)=___<br> 2+4y=____

34kurt

If they are looking to have them all simplified, this is how they should look.

4y - 4
4y + 4
4y + 1

3 0

3 years ago

The half-life of cesium-137 is 30 years. Suppose we have a

VMariaS [17]

(a) If $y(t)$ is the mass (in mg) remaining after $t$ years, then $y(t) = y(0) e^{kt}=100e^{kt}.$

$y(30) = 100 e^{30k} = \frac{1}{2}(100) \implies e^{30k} = \frac{1}{2} \implies k = -(\ln 2) /30 \implies \\ \\
y(t) = 100e^{-(\ln 2)t/30} = 100 \cdot 2^{-t/30}$

(b) $y(100) = 100 \cdot 2^{-100/30} \approx \text{9.92 mg}$

(c)
$100 e^{- (\ln 2)t/30} = 1\ \implies\ -(\ln 2) t / 30 = \ln \frac{1}{100}\ \implies\ \\ \\
t = -30 \frac{\ln 0.01}{\ln 2} \approx \text{199.3 years}$

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3 years ago