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wariber [46]
3 years ago
5

Only add an answer if you KNOW it's correct!

Mathematics
1 answer:
evablogger [386]3 years ago
8 0

Answer:

87

Step-by-step explanation:

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Translate and solve: twenty-three greater than b is at least −276.
masha68 [24]

Answer:

b+23≥-276

b≥-276-23

b≥-299

Step-by-step explanation:

hope this is helpful

6 0
3 years ago
The half life of a radioactive substance is the time it takes for a quantity of the substance to decay to half of the initial am
Veronika [31]

Using an exponential function, it is found that:

a) N(t) = 75(0.5)^{\frac{t}{3.8}}

b) 37.5 grams of the gas remains after 3.8 days.

c) The amount remaining will be of 10 grams after approximately 11 days.

<h3>What is an exponential function?</h3>

A decaying exponential function is modeled by:

A(t) = A(0)(1 - r)^t

In which:

  • A(0) is the initial value.
  • r is the decay rate, as a decimal.

Item a:

We start with 75 grams, and then work with a half-life of 3.8 days, hence the amount after t daus is given by:

N(t) = 75(0.5)^{\frac{t}{3.8}}

Item b:

This is N when t = 3.8, hence:

N(t) = 75(0.5)^{\frac{3.8}{3.8}} = 37.5

37.5 grams of the gas remains after 3.8 days.

Item c:

This is t for which N(t) = 10, hence:

N(t) = 75(0.5)^{\frac{t}{3.8}}

10 = 75(0.5)^{\frac{t}{3.8}}

(0.5)^{\frac{t}{3.8}} = \frac{10}{75}

\log{(0.5)^{\frac{t}{3.8}}} = \log{\frac{10}{75}}

\frac{t}{3.8}\log{0.5} = \log{\frac{10}{75}}

t = 3.8\frac{\log{\frac{10}{75}}}{\log{0.5}}

t \approx 11

The amount remaining will be of 10 grams after approximately 11 days.

More can be learned about exponential functions at brainly.com/question/25537936

4 0
2 years ago
What does 7526.442 round to the nerest hundredth
Viefleur [7K]
7526.44 because you look at the thousanth place (the 2) and since it is less than 5 you round down
7 0
2 years ago
Hailey has a summer job at the water slide park. She earns $9.50 an hour as a lifeguard, but never works more than 25 hours in a
DanielleElmas [232]
The answer is the letter C
7 0
3 years ago
Read 2 more answers
Hcf of 32 and 48 pls
DENIUS [597]

Answer:

16 is the Highest Common factor of 32 and 48

Stay safe, stay healthy and blessed.

Have a great day !

Thank you

7 0
2 years ago
Read 2 more answers
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