3 years ago

What is 1.2 divided by 8.2

Mathematics

2 answers:

amid [387]3 years ago

5 0

0.146341463 is the answer

Karo-lina-s [1.5K]3 years ago

3 0

This equals 0.146341463414634

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-8y2 - 10y = 0 solve polynomial

iragen [17]

Answer: y = 0, 5/4

hope this helps

4 0

3 years ago

There are 2 cats on each house roof, and there are 15 cats on the ground. The table shows how the number of cats, c, depends on

Nuetrik [128]

Answer: c = 2h + 15

Step-by-step explanation: Each house (h) adds 2 cats. We represent that with 2h. Then we add the constant 15 on the ground as +15.

4 0

3 years ago

Please help me 5-7g-9=

timofeeve [1]

Answer:

4 - 7g

Step-by-step explanation:

Combine like terms: 5 - 9 - 7g = -4 - 7g (answer)

6 0

3 years ago

Place 1/5 on the number line below .

Georgia [21]

Right next to the zero van I heht brainleist please

3 0

3 years ago

Dinosaur fossils are often dated by using an element other than carbon, like potassium-40, that has a longer half life (in this

Firlakuza [10]

The amount of substance left of a radioactive element of half life, $t_{\frac{1}{2}}$ after a time, t, is given by:

$N(t)=N_0\left( \frac{1}{2} \right)^ \frac{t}{t_{ \frac{1}{2} }}$

Given that <span>potassium-40 has a half life of approximately 1.25 billion years.

The number of years it will take for 0.1% of potassium-40 to remain is obtained as follows:

$0.1=100\left( \frac{1}{2} \right)^ \frac{t}{1.25}} \\ \\ \Rightarrow\left( \frac{1}{2} \right)^ \frac{t}{1.25}}=0.001 \\ \\ \Rightarrow\frac{t}{1.25}\ln\left( \frac{1}{2} \right)=\ln(0.001) \\ \\ \Rightarrow \frac{t}{1.25}= \frac{\ln(0.001)}{\ln\left( \frac{1}{2} \right)} =9.966 \\ \\ t=9.966(1.25)=12.5$

Therefore, </span><span>the maximum age of a fossil that we could date using 40k is 12.5 billion years.</span>

3 0

3 years ago