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3 years ago

What is 5 over 100 as a decimal

Mathematics

2 answers:

Alekssandra [29.7K]3 years ago

8 0

Answer:

.05 im sure of it hope it helps.

Step-by-step explanation:

Sunny_sXe [5.5K]3 years ago

5 0

Answer:

It's 0.05

Step-by-step explanation:

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Dubnium-262 has a half-life of 34 s. How long will it take for 500.0 grams to

dmitriy555 [2]

Answer:

the time taken for the radioactive element to decay to 1 g is 304.8 s.

Step-by-step explanation:

Given;

half-life of the given Dubnium = 34 s

initial mass of the given Dubnium, m₀ = 500 grams

final mass of the element, mf = 1 g

The time taken for the radioactive element to decay to its final mass is calculated as follows;

$1 = 500 (0.5)^{\frac{t}{34}} \\\\\frac{1}{500} = (0.5)^{\frac{t}{34}}\\\\log(\frac{1}{500}) = log [(0.5)^{\frac{t}{34}}]\\\\log(\frac{1}{500}) = \frac{t}{34} log(0.5)\\\\-2.699 = \frac{t}{34} (-0.301)\\\\t = \frac{2.699 \times 34}{0.301} \\\\t = 304.8 \ s$

Therefore, the time taken for the radioactive element to decay to 1 g is 304.8 s.

4 0

2 years ago

Add 1/ 10 11/100 and select the correct answer. all i got is 12/100 pleaseee help i tried

Vesnalui [34]

I think it's 21/100 because I found the common denominator by multiplying by ten so I multiplied 1 times ten to get 10. Does that help?

3 0

3 years ago

HELPPP

Alexxandr [17]

Hope this helps you

3 0

3 years ago

(R^3)^-3 <br> what is theAnswer

Nastasia [14]

$(r^{3})^{-3}$
$\frac{1}{(r^{3})^{3}}$

$\frac{1}{(r^{3})(r^{3})(r^{3})}$

$\frac{1}{r^{9}}$

3 0

3 years ago

Square root 2x-1+2=5 what is x equal to?

KATRIN_1 [288]

Because your question isn't specific or formatted exactly, I cannot guarantee that my answer is what you expect.

√2x - 1 + 2 = 5
√(2x + 1)² = 5²
2x + 1 = 25
2x = 24
/2 /2
x = 12

Therefore x = 12.
Proof:

√2x - 1 + 2 = 5
√2(12) - 1 + 2 = 5
  √24 - 1 + 2 = 5
  √25 = 5
5 = 5

8 0

3 years ago