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bazaltina [42]
3 years ago
8

How to graph 3y=-x-3

Mathematics
1 answer:
saw5 [17]3 years ago
3 0
So you’ll have to isolate the y by dividing the other side of the equation by 3

3y=-x-3
y=-1/3x-1

-1 will be your y intercept and the slope will be -1/3

you’ll start your line by plotting (0,-1)
then from that point you’ll count down one, right 3
or up one, left 3

hope this helps (:
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Answer:  693 years

Step-by-step explanation:

Expression for rate law for first order kinetics is given by:

A(t) =A_0e^{kt}

k = rate constant

t = time taken for decomposition = 1

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A_t = amount of the reactant left =A_0-\frac{0.1}{100}\times A_0=0.999A_0

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k=-0.001year^{-1}

for half life : t=t_\frac{1}{2}

A_t=\frac{1}{2}A_o

Putting in the values , we get

\frac{1}{2}A_0=A_0e^{-0.001\times t_\frac{1}{2}

t_\frac{1}{2}=693 years

Thus half life of this isotope, to the nearest year is 693.

8 0
3 years ago
Simplify: 7·(a+5)–30 =
postnew [5]

Answer:

7a + 5

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