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zloy xaker [14]
2 years ago
8

Initially 100 milligrams of a radioactive substance was present. After 6 hours the mass had decreased by 2%. If the rate of deca

y is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (Round your answer to one decimal place.)
Mathematics
1 answer:
lyudmila [28]2 years ago
7 0

The half-life of the radioactive substance is 67.95 hours.

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Ugo [173]
Y=x-8

the slope is 1 and the y intercept is -8
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What is 457.8 divide 70 use number sense to help you
Luba_88 [7]

The answer to your question is 6.54

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3 years ago
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2(4x-1)+3=7<br> i'm little confused on this
Ratling [72]

Answer:

x = \frac{3}{4}

Step-by-step explanation:

Since you cannot subtract -1 from 4x, you multiply 2 × 4x = 8x

Now, you have 8x - 1 + 3 = 7

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8x = 1 - 3 + 7 ---> 6

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4 0
3 years ago
The figure below shows the circle inside of a square if the radius of the circle Is 8cm find the following by showing the formul
Goryan [66]
A. The circumference of the circle:
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Suppose a white dwarf star has a diameter of approximately 1.8083 to the power of 4 km. Use the formula 4n to the power of 2 to
aivan3 [116]

ANSWER:

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EXPLANATIONS:

Diameter of the star = 1.8083 x 10^{4} Km.

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Where n is the radius of the star.

So that;

n = \frac{ 1.8083 * 10^{4} }{2}

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Therefore, the surface area of the star is 3.2700 x 10^{8} square kilometres.

4 0
3 years ago
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