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3 years ago

Tell whether the following sequence is geometric or not. If geometric find r

Mathematics

1 answer:

o-na [289]3 years ago

3 0

Answer:

this sequence is geometrical sequence

and it's formula is

$y = a {r}^{n} \\ here \: a \: is \: first \: number \: is \: equal \: 1 \\ and \: the \: ratio \: is \: r \: is \: equal \: - 3 \\ y = 1 \times {( - 3)}^{n}$

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Find the difference.

user100 [1]

Answer:

The answer is 4.71 so E.

Step-by-step explanation:

7 0

3 years ago

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Evaluate 3x + 1/3 if x =1/4? simplify if possible

sammy [17]

Answer:

Exact Form:

13/12

Decimal Form:

1.083

Mixed Number Form:

1 1/12

Step-by-step explanation:

3 0

3 years ago

Solve the problem below by finding a common denominator.<br><br> 23+12

zavuch27 [327]

Answer:

Step-by-step explanation:

23 + 12 = 35

= (20 + 10) + (3 + 2)

= 35

7 0

3 years ago

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The ratio of the number of men to the number of women in a sports club is 5:2.

user100 [1]

Let the number of men and the number of women in the beginning be x and y

Now, $\sf \frac{x} {y} =\frac{5}{2} \\\\\sf=2x=5y \\\\\sf=x=\frac{5y}{2}$

Now, In 2nd case,

No. Of men=x-63 and no. Of women =y-12

Now,the ratio becomes $\frac{x-63}{y-12}=\frac{7}{4} \\\\\sf=4(x-63)=7(y-12) \\\\\sf=4x-252=7y-84 \\\\\sfPutting,\:x=\frac{5y}{2}\:in\: 4x-252=7y-84\:we\: get, \\\\\sf10y-252=7y-84 \\\\\sf=10y-7y=252-84 \\\\\sf=3y=168 \\\\\sf=y=56 \\\\\sf=\boxed{Y=56}$

Now,we have, 2x=5y

Putting the value of Y=56 in 2x=5y,we get,

$\sf 2x=5\:x\:56 \\\\\sfx=\frac{5\:x\:56}{2} \\\\\sfx=\frac{5\:x\: \cancel{56}\:\:28}{ \cancel{2}} \\\\\sf=x=5\: x\: 28 \\\\\sfx=140 \\\\\sf\boxed{x=140}$

Hence, the number of men was 140 and the no. of women was 56

Hi...I am from India.. Where are you from?

8 0

3 years ago

A jar contains 100 tickets for a drawing. Among those tickets are 7 winning tickets. What are the odds in favor of winning?

noname [10]

Answer:

i say 7/100

Step-by-step explanation:

if the 100 tickets is your total then its your denominator

the 7 is represents the tickets what are winners

3 0

3 years ago