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3 years ago

What is 896.854 in word form

Mathematics

2 answers:

Dahasolnce [82]3 years ago

8 0

Eight hundred and ninety-six point eight hundred and fifty-four.

garik1379 [7]3 years ago

6 0

Eight hundred ninety six point eight hundred fifty four

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In kite WXYZ, the measure of Measure of angle X = measure of angle Z = 86 degrees, and the Measure of angle Y = 72 degrees.

Varvara68 [4.7K]

Answer:

116

Step-by-step explanation:

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2 years ago

What is the square root of 40 rounded to the nearest hundredths place

iren [92.7K]

The answer to the square root of 40 is 6.33

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2 years ago

Initially 100 milligrams of a radioactive substance was present. After 6 hours the mass had decreased by 3%. If the rate of deca

Hitman42 [59]

Answer:

The half-life of the radioactive substance is 135.9 hours.

Step-by-step explanation:

The rate of decay is proportional to the amount of the substance present at time t

This means that the amount of the substance can be modeled by the following differential equation:

$\frac{dQ}{dt} = -rt$

Which has the following solution:

$Q(t) = Q(0)e^{-rt}$

In which Q(t) is the amount after t hours, Q(0) is the initial amount and r is the decay rate.

After 6 hours the mass had decreased by 3%.

This means that $Q(6) = (1-0.03)Q(0) = 0.97Q(0)$ . We use this to find r.

$Q(t) = Q(0)e^{-rt}$

$0.97Q(0) = Q(0)e^{-6r}$

$e^{-6r} = 0.97$

$\ln{e^{-6r}} = \ln{0.97}$

$-6r = \ln{0.97}$

$r = -\frac{\ln{0.97}}{6}$

$r = 0.0051$

$Q(t) = Q(0)e^{-0.0051t}$

Determine the half-life of the radioactive substance.

This is t for which Q(t) = 0.5Q(0). So

$Q(t) = Q(0)e^{-0.0051t}$

$0.5Q(0) = Q(0)e^{-0.0051t}$

$e^{-0.0051t} = 0.5$

$\ln{e^{-0.0051t}} = \ln{0.5}$

$-0.0051t = \ln{0.5}$

$t = -\frac{\ln{0.5}}{0.0051}$

$t = 135.9$

The half-life of the radioactive substance is 135.9 hours.

6 0

2 years ago

9. 1.3(c – 4) ≤ 2.6 + 0.7c

Julli [10]

Answer:

c ≤ 13

I think what was the question tho

Step-by-step explanation:

3 0

2 years ago

List five rational numbers between: <br> −4<br> 7<br> and <br> 1<br> 2

klio [65]

5 rational number between -47 and 12 are {-46, -45, -44, -43, -42}

<h3>How to find the rational numbers?</h3>

Remember that any integer is also a rational number.

So, if we want to find 5 rational numbers between -47 and 12, we can just find 5 integers between these two numbers.

To do that, we can just add 1 to the lowest bound, we will et:

-47 + 1 = -46

-45 + 1 = -45

-44 + 1 = -44

-43 + 1= -43

-43 + 1 = -42

So 5 rational number between -47 and 12 are {-46, -45, -44, -43, -42}

If you want to learn more about rational numbers:

brainly.com/question/12088221

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7 0

1 year ago