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3 years ago

Help please help me out with this (old math)

Mathematics

2 answers:

shutvik [7]3 years ago

6 0

6 7/12 I hope this helps ya out

Maurinko [17]3 years ago

5 0

Answer: $6\frac{7}{12}$

Step-by-step explanation:

$\frac{34}{12} + \frac{45}{12} = \frac{79}{12}$

$\frac{79}{12} = 6\frac{7}{12}$

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What is the probability that a random 2 digit number (00-99) does not end in 5

Alex73 [517]

11/99 will have a 5 then 88/99 will not have a 5

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3 years ago

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What is the ratio of 50 and 30 girl

choli [55]

Do you mean simplified ratio of 50:30, because if you did then the simplified ratio of 50:30 would be 5:3. Divide both numbers by 10.

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3 years ago

Find the generating function for the sequence 1,-2,4,-8, 16, ...

kirill [66]

Answer:

$a(x)=\dfrac{1}{1+2x}$

Step-by-step explanation:

The generating function a(x) produces a power series ...

$a(x)=a_0+a_1x+a_2x^2+a_3x^3+\dots$

where the coefficients are the elements of the given sequence.

We observe that the given sequence has the recurrence relation ...

$a_0=1;a_n=-2a_{n-1} \quad\text{for n $>$ 0}$

This can be rearranged to ...

$a_n+2a_{n-1}=0$

We can formulate this in terms of a(x) as follows, then solve for a(x).

$\sum\limits^{\infty}_{n=1} {a_{n}x^n} =a(x)-a_0 \quad\text{and}\\\\\sum\limits^{\infty}_{n=1} {2a_{n-1}x^n} =(2x)a(x) \quad\text{so}\\\\\sum\limits^{\infty}_{n=1} {(a_n+2a_{n-1})x^n}=0=a(x)-a_0+2xa(x)\\\\a(x)=\dfrac{a_0}{1+2x}=\dfrac{1}{1+2x}$

The generating function is ...

a(x) = 1/(1+2x)

3 0

3 years ago

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How many hours of sleep did you get last night? What fraction of the day is that? What is the decimal equivalent (use your calcu

zzz [600]

Step-by-step explanation:

I got about 9 hours of sleep last night that is 9/24 of the day or 37.5% of the day of 0.375 of the day sleeping

thanks for asking

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3 years ago

A movie-theater employee notes an inverse relationship between the theater's popcorn sales and its nacho sales. On a given night

mario62 [17]

Using proportions, it is found that $1,225 is earned from nachos.

This question is solved by <em>proportions</em>, using a rule of three.

The measures have an inverse relationship, hence line multiplication is applied instead of cross multiplication.

When the theater makes $1,540 from popcorn sales, it makes $1,330 from nacho sales. How much is earned from nachos when $1,672 is earned from popcorn?

The <em>rule of three</em> is:

$1,540 - $1,330

$1,672 - $x

Applying line multiplication:

$1672x = 1540 \times 1330$

$x = \frac{1540 \times 1330}{1672}$

$x = 1225$

$1,225 is earned from nachos.

To learn more about proportions, you can take a look at brainly.com/question/24372153

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3 years ago