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Deffense [45]
3 years ago
8

Number 13 please.it’s the answe.r

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
3 0
The answer is there what u need help with?
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Which table represents a direct variation function?
leonid [27]
3 i think it might be

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3 years ago
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If 800g of a radioactive substance are present initially and 8 years later only 450g remain, how much of the substance will be p
artcher [175]

A=Pe^(rt)

P = 800g

t = 8 years

A = 450g

r = This is what we will try and find to start with

450=800e^(r*8)

After running the math through a calculator, we end with r = -0.07192

Now we just re-input this information into our equation: A=800e^(-0.07192*16)

A=800e^(1.15072)

Now we will re-write the equation using the negative exponent rule:

A = 800 1/e^1.15072

Combine right side:

A = 800/e^1.15072

Then do the math:

A = 253.12709836......

That will give us A = 253 (rounded to the whole number)

I hope this helps! :)

5 0
3 years ago
Estimate the decimal expression.<br> 0.62-(-0.51)
lawyer [7]

Answer: 1.13

Step-by-step explanation: 0.62-(-0.51) = 1.13

Hope it works

3 0
3 years ago
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Ruben bought a DVD recorder for 240 $. Now, it is on sale for 180 $. Find the percentage of change in the price
xenn [34]

Answer:

Step-by-step explanation:

orginal :$240

new/sale: $180

Percentage of Change:

(V2−V1)|V1|×100

=(180−240)|240|×100

=−60240×100

=−0.25×100

=−25%change

=25%decrease

3 0
3 years ago
What is the seventh term of the sequence whose nth term is (n + 1)(n − 2)?
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If you plug in 7 for n, you get
(7+1)(7-2).
Simplify that.
(8)(5)
Simplify that and you get the 7th term of the particular sequence is,
40
Hope it helps :D
8 0
3 years ago
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