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ss7ja [257]
3 years ago
15

I need help with this. ASAP

Mathematics
2 answers:
Ann [662]3 years ago
5 0
4000 is the correct answer
Margaret [11]3 years ago
4 0
The answer in 4,000.
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Vika [28.1K]

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C or the 3rd one

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What is equinlents to (3-2x)(4x-7)
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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)

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A = 253.12709836......

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I hope this helps! :)

5 0
3 years ago
A person is to install five devices each 6 7/8 inches wide with 3 1/2 inches between switches. how much space will be needed to
solong [7]
Refer to the diagram shown below.

w = 6 7/8 in = 6.875 in, the width of each device.
d = 3 1/2 in = 3.50 in, the space between teo devices.

The total space needed is
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    = 5w + 4d
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6 0
4 years ago
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zaharov [31]
Yes, 10 squared+ 24 squared+ 26 squared
5 0
3 years ago
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