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pshichka [43]
3 years ago
7

What is the fourth term of the sequence defined by a1 3xy 5 an (___2x y )an 1? (1) 12x 3 y 3 (3) 24x 4 y 2 (2) 24x 2 y 4 (4) 48x

5 y 1?
Mathematics
1 answer:
pychu [463]3 years ago
4 0

<span>a1=3xy</span>^ 5

an= (2x/ y )a(n-1)

then

a2=(2x/ y )a(1)= (2x/ y )* 3xy^ 5=6(x^ 2)(y^ 4)

a2=6(x^ 2)(y^ 4)

a3=(2x/ y )a(2)= (2x/ y )* 6(x^ 2)(y^ 4)=12(x^ 3)(y^ 3)

a3=12(x^ 3)(y^ 3)

a4=(2x/ y )a(3)=(2x/ y )*12(x^ 3)(y^ 3)=24(x^ 4)(y^ 2)

 The answer is a4=24(x^ 4)(y^ 2)

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Answer:

1 out of 2

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7 0
3 years ago
Read 2 more answers
It would be nice if I get some help with these 2 things
Stella [2.4K]
Thing 1
A. You can set up a proportion by dividing how much of something there is by the original. (This probably doesn't make much sense but I hope you can understand it from the answer to the problem below!)
B.First, do 168/21 to see how many more times he put flour in. 
168/21= 8
Then to find out the milk in the same proportion do the number (in this case 8) times the original of the thing you wan to find out. 
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Thing 2
24/36=8y
To solve any equation, you want to have letters on one side and numbers on the other, so...
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Hope this helps :)
5 0
4 years ago
A particular bacterium population is found to double the in 20 minutes. If a laboratory culture
insens350 [35]

The bacteria present at t=37 minutes is found to be 8.40, with no change in growth rate.

<h3>What does population growth exponentially mean?</h3>

When a population's per capita growth rate remains constant, regardless of population size, exponential growth occurs, causing the population to grow exponentially as the population increases.

Given:

P = 340

It has been discovered that a specific bacterial population doubles in 20 minutes.

k = 2/20 = 0.1

t = 37 minutes

We know that,

P = P₀e^{kt}

340   = P₀(e^{0.1*37})

340 =P₀(40.44)

P₀ = 8.40

As a result, the bacteria that will be present in t=37 minutes is found to be 8.40 with no change in growth rate.

Learn more about exponential growth here:

brainly.com/question/13223520

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4 0
1 year ago
the long sides of a rectangle are 5 ft 6 in and it's perimeter 16 ft 10 in how long are the shorter sides?
loris [4]
So a rectangle has 2 Long side so that would be a total of 10 ft 12 in which is 13 feet so you
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5 0
3 years ago
Ashley is saving for a computer that costs $500. She has saved up $120
diamong [38]

Answer:

m > $380

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First, the math:

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Her $380 still needed is less than <em>m</em>, which gives us the last answer the most logical.

I hope this helped! Have a nice day.

5 0
3 years ago
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