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3 years ago

Sahil's brother is 3 years old how many weeks old is he

Mathematics

2 answers:

galina1969 [7]3 years ago

6 0

I believe 156 weeks

n200080 [17]3 years ago

6 0

Hey th answer is About 156 weeks old

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Woo-Jin and Kiran were asked to find an explicit formula for the sequence 64\,,\,16\,,\,4\,,\,1,...64,16,4,1,...64, comma, 16, c

olya-2409 [2.1K]

Answer:

$f(n)=64(\frac{1}{4})^{n-1}$

Step-by-step explanation:

The given sequence is

64, 16, 4, 1

$r_1=\dfrac{a_2}{a_1}=\dfrac{16}{64}=\dfrac{1}{4}$

$r_2=\dfrac{a_3}{a_2}=\dfrac{4}{16}=\dfrac{1}{4}$

$r_3=\dfrac{a_4}{a_3}=\dfrac{1}{4}$

It is a geometric series because it has a common ratio $r_1=r_2=r_3=\dfrac{1}{4}$ .

First term is 64.

The explicit formula of a geometric series is

$f(n)=ar^{n-1}$

where, a is first term and r is common ratio.

Substitute a=64 and r=1/4 in the above function.

$f(n)=64(\frac{1}{4})^{n-1}$

Therefore, the required explicit formula is $f(n)=64(\frac{1}{4})^{n-1}$ .

5 0

3 years ago

Read 2 more answers

What single decimal multiplier would you use to decrease by 2% followed by a 7% decrease?

serg [7]

Here is your answer.

3 0

3 years ago

Enlarge the triangle by scale factor 0.5 using (3, 1)

Viefleur [7K]

The center after enlargement using scale factor is (4.5,0.5).

What is Scale factor ?

The ratio between the scale of an original thing and a new object that is a representation of it but is a different size is known as a scale factor (bigger or smaller). For instance, if a rectangle has sides of 2 cm and 4 cm, it can be made larger by multiplying each side by a certain number, in this case 2.

Here the given coordinate point is,

=> (x,y)=(3,1)

Now enlarging the coordinator using scale factor k

=> (x,y)= (kx,ky)

Now put k=2 then

=> (x,y)=(0.5*3, 0.5*1)

=>(x,y) = (4.5,0.5)

Hence the answer is (4.5,0.5).

To learn more about scale factor

brainly.com/question/23652612

#SPJ13

6 0

7 months ago

ASAP ASAP HELP MARK AS BRAINLIEST

Anna007 [38]

Alright, imma help you. Imma work on it on a piece of paper. :D

4 0

2 years ago

Read 2 more answers

The Mayors of two small towns that adjoin a large community have engaged in an argument on which of their cities is safer, with

Lelu [443]

Answer:

1. City A: 150 violent crimes per 100,000 residents.

City B: 161 violent crimes per 100,000 residents.

2. City A

Step-by-step explanation:

City A:

Population = 123,000

Violent crimes = 185

Violent crimes per 100,000 people:

$V_{100k} = \frac{185*100,000}{123,000} \\V_{100k} = 150$

City B:

Population = 84,000

Violent crimes = 135

Violent crimes per 100,000 people:

$V_{100k} = \frac{135*100,000}{84,000} \\V_{100k} = 161$

1. City A: 150 violent crimes per 100,000 residents.

City B: 161 violent crimes per 100,000 residents.

2. Even though it has a bigger number of crimes, City A has the lowest crime rate since its population is larger.

5 0

2 years ago