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3 years ago

8. Calculate 341) + 35） ༣༨

Mathematics

2 answers:

kompoz [17]3 years ago

7 0

Step-by-step explanation:

376........................

Marta_Voda [28]3 years ago

5 0

Answer: 341 + 35 = 376

Step-by-step explanation:

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A particular isotope has a half-life of 74 days. If you start with 1 kilogram of this isotope, how much will remain after 150

shtirl [24]

$\bf \stackrel{150~days}{\textit{Amount for Exponential Decay using Half-Life}} \\\\ A=P\left( \frac{1}{2} \right)^{\frac{t}{h}}\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{initial amount}\dotfill &1\\ t=\textit{elapsed time}\dotfill &150\\ h=\textit{half-life}\dotfill &74 \end{cases} \\\\\\ A=1\left( \frac{1}{2} \right)^{\frac{150}{74}}\implies A=1\left( \frac{1}{2} \right)^{\frac{75}{37}}\implies \boxed{A\approx 0.24536}$

$\bf \stackrel{300~days}{\textit{Amount for Exponential Decay using Half-Life}} \\\\ A=P\left( \frac{1}{2} \right)^{\frac{t}{h}}\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{initial amount}\dotfill &1\\ t=\textit{elapsed time}\dotfill &300\\ h=\textit{half-life}\dotfill &74 \end{cases} \\\\\\ A=1\left( \frac{1}{2} \right)^{\frac{300}{74}}\implies A=1\left( \frac{1}{2} \right)^{\frac{150}{37}}\implies \boxed{A\approx 0.060202}$

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3 years ago

Pls someone help i don’t know the answer

Mademuasel [1]

Answer:

Step-by-step explanation:

The answer is A. 16+10+20= 46

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2 years ago

two airplane fly toward each other from points 900 miles apart, at the rate, per hour, of 300 miles and 250 miles. when will the

mojhsa [17]

They complete a 900-mile distance with their combined speed of (300+250=550) mph
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3 years ago

How many ways can Mrs. Sullivan choose two

sveta [45]

In 371 ways Mrs. Sullivan choose two students from 27 to help put away calculators at the end of class

Step-by-step explanation:

let us assume that Mrs.Sullivan wants to choose 2 students from a group of 27 students

So ,in the first choice we have 27 students

In the second choice we have 26 choices

So Mrs.Sullivan has = 27 × 26 = 702 ways

But each group repeated twice,in order to avoid that we will divide the answer by 2

so we will write

= 702 ÷ 2 =<u> 351 ways</u>

<u>This method of calculation is called Combination</u>

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3 years ago

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