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Ymorist [56]
2 years ago
6

What is 3 1/2 ??? i need help asap

Mathematics
1 answer:
Dmitry_Shevchenko [17]2 years ago
5 0

Answer:

7/2 or 2.33

Step-by-step explanation:

hope this helps :)

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Gnesinka [82]
Invisible braces would cost 5300. I think that’s it. Hope that helped
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3 years ago
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A radioactive substance decreases in the amount of grams by one-third each year. If the starting amount of the
katovenus [111]

Answer:

The sequence is geometric. The recursive formula is a_{n}=2/3a_{n-1}

Step-by-step explanation:

In order to solve this problem, you have to calculate the amount of the substance left after the end of each year to obtain a sequence and then you have to determine if the sequence is arithmetic or geometric.

The substance decreases by one-third each year, therefore:

After 1 year:

1452-\frac{1}{3}(1452)

Using 1452 as a common factor and solving the fraction:

1452(1-\frac{1}{3})=1452(\frac{2}{3})=968

You can notice that in general, after each year the amount of grams is the initial amount of the year multiplied by 2/3

After 2 years:

968(\frac{2}{3})=\frac{1936}{3}

After 3 years:

\frac{1936}{3}(\frac{2}{3})=\frac{3872}{9}

The sequence is:

1452,968,1936/3,3872/9....

In order to determine if the sequence is geometric, you have to calculate the ratio of two consecutive terms and see if the ratio is the same for all two consecutive terms. The ratio is obtained by dividing a term by the previous term.

The sequence is arithmetic if the difference of two consecutive terms is the same for all two consecutive terms.

-Calculating the ratio:

For the first and second terms:

968/1452=2/3

For the second and third terms:

1936/3 ÷ 968 = 2/3

In conclussion, the sequence is geometric because the ratio is common.

The recursive formula of a geometric sequence is given by:

a_{n}=ra_{n-1}

where an is the nth term, r is the common ratio and an-1 is the previous term.

In this case, r=2/3

7 0
3 years ago
Qual a resposta dessa expressão numérica? 3-10³-3.10².2².1²
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I don't understand your language and I don't know which language is this but I try to answer your question. 3-1000-3*100*4*1 3-1000-1200 3-2200 =-2197
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3 years ago
Robert buys a new pair of boots for 120 dollars. Sales tax is
Margarita [4]

Answer: $133.20

Step-by-step explanation: To simply find the sales tax all you have to do is:

Step 1 Multiply: 120 x .11 = 13.2

Step 2 Add: 120 + 13.2 = 132.2

So Robert actually has to pay $133.20

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2 years ago
Twenty seven minus 3/2 of a nuber x is not more than 36. What is the number?
Irina-Kira [14]

Answer:

Step-by-step explanation:

27 - 1.5x ≤ 36

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