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zhannawk [14.2K]
4 years ago
5

Need help ASAP questions below

Mathematics
1 answer:
BARSIC [14]4 years ago
3 0
Can you rotate the picture or take another one? This one is really hard to read

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Initially 100 milligrams of a radioactive substance was present. After 6 hours the mass had decreased by 2%. If the rate of deca
LenaWriter [7]

The amount of radioactive material remaining after 24 hours is 92.15 kg.

<h3>Exponential function</h3>

An exponential function is in the form:

y = abˣ

where y, x are variables, a is the initial value of y and b is the multiplier.

Let y represent the amount of the substance after t hours.

From the equation, a = 100 mg

Also, after 6 hours:

100-100*2\%=100b^6\\\\98=100b^6\\\\b=0.9966

After 24 hours:

y = 100(0.9966)²⁴ = 92.15 kg

The amount of radioactive material remaining after 24 hours is 92.15 kg.

Find out more on Exponential function at: brainly.com/question/12940982

4 0
3 years ago
Please help me with this problem i have been struggling!
adoni [48]

Answer:

14

First multiply

1 and 3/4 by 8 and then you got your answer

5 0
3 years ago
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-10y+9x=-9<br> 10y+5x=-5
TEA [102]
You cannot add -10y+9x or 10y+5x because of the rule “combine like terms”...
7 0
4 years ago
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HELP ME PLEASE I DONT UNDERSTAND!!!!!
ankoles [38]

Answer:

Step-by-step explanation:

At most 24  means that the highest value is 24

b - 4 ≤ 24

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(5x - 2y)^3<br> Expand using Bionomial Theorum. Show steps, please.
tatyana61 [14]

Answer:

125x³ − 150x²y + 60xy² − 8y³

Step-by-step explanation:

(5x − 2y)³

₃C₀ (5x)³ (-2y)⁰ + ₃C₁ (5x)² (-2y)¹ + ₃C₂ (5x)¹ (-2y)² + ₃C₃ (5x)⁰ (-2y)³

(1) (125x³) (1) + (3) (25x²) (-2y) + (3) (5x) (4y²) + (1) (1) (-8y³)

125x³ − 150x²y + 60xy² − 8y³

7 0
4 years ago
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