2 years ago

Find the half-life, in days, of Co-60. Round your

Mathematics

1 answer:

iren2701 [21]2 years ago

4 0

Answer:5.3

Step-by-step explanation:

Why

Divide both sides by 8

4=8e ^-0.1308t

0.5=e^-0.1308t

Take log of both sides

In0.5=Ine^-0.1308t

Apply In e^x=x

In0.5=-0.1308

Divide both sides by -0.1308 to solve for t

t=5.3

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Work out the area of this circle.

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Answer:

36π mm²

Step-by-step explanation:

Formula: πr²

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2 years ago

George and James each have a collection of nickels. The value of the nickels George has is $0.10 more than the value of the nick

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George has 17 nickels

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Teachers were asked what their favorite ice cream was. The ratio of teachers that prefer rocky road to mint is 5 to 2. If there

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28 teachers prefer mint.

Step-by-step explanation:

Given,

Total number of teachers = 98

Ratio of teacher that prefer rocky road to mint = 5:2

Let,

x be the original number.

Teachers who like rocky road = 5x

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28 teachers prefer mint.

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3 years ago

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Nadusha1986 [10]

For questions 10 it c

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3 years ago

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Find the slope of the line that passes through each pair of points.<br> 5. G(–3, 2), H(7, 2)

sladkih [1.3K]

Answer:

y=0x+2 meaning the slope is equal to 0

Step-by-step explanation:

If you think about this question you'll see that our two points have the same y coordinate

This means that the slope is equal to 0

so we have

y=0x+b

If we plug in -3 for x and set the equation equal to 2 we can find b

0+b=2

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so we have

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3 years ago