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3 years ago

PLEASE HELP ME WITH THIS QUESTION I WILL GIVE BRAINLIEST!!!

Mathematics

1 answer:

Scrat [10]3 years ago

6 0

Answer:

I think is B

Step-by-step explanation:

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What is the arithmetic sequence in this problem . help plz

adell [148]

Answer:

a(n)=80*(9/10)^(n-1)

Step-by-step explanation:

I think u r confused

this sequence is geometric not arithmetic

HOw we know that ??

when we get a common difference that must Be equal

d=72-80=-8 not equal to d=64.8-72=-7.2

So it is not arithmetic

but when we get the common ratio that also must be equal

r=72/80=9/10 equal to r=64.8/72=9/10

So it is geometric

By using this equation:

a(n)=a*r^(n-1)

and we have a=80 , r=9/10

Then a(n)=80*(9/10)^(n-1)

I really hope this helps <3

6 0

3 years ago

What is the simplified form of24 y to the fifth power over 15 x to the eighth powerdivided by8 y squared over 4 x to the fourth

lions [1.4K]

(24y⁵/15x⁸)÷(8y²/4x⁴).
(8y⁵/5x⁸)÷(2y²/x⁴)=8y⁵/5x⁸×x⁴/2y²=4y³/5x⁴

6 0

4 years ago

A rectangular garden has a length of (2y - 4) feet and a width of 4y^2 feet. How do you find the perimeter of the garden

Ber [7]

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{8 {y}^{2} + 4y - 8}}}}}$

Step-by-step explanation:

Given,

Length of a rectangular garden ( l ) = 2y - 4

Width of a rectangular garden ( w ) = 4y²

Perimeter of the garden = ?

Finding the perimeter of a rectangular garden having length of 2y-4 and width of 4y²

$\bold{ \boxed{ \sf{perimeter \: of \: a \: rectangle = 2(l + w)}}}$

$\longrightarrow{ \sf2(2y - 4 + 4 {y}^{2}})$

Distribute 2 through the parentheses

$\longrightarrow{ \sf{4y - 8 + 8 {y}^{2} }}$

Arrange it in standard form

$\longrightarrow{ \sf{8 {y}^{2} + 4y - 8}}$

Hope I helped!

Best regards! :D

3 0

4 years ago

Suppose Monica Walks 1 kilometer every 15 minutes. How many meters further can she walk in 1 hour at this new rate? EXPLAIN how

skelet666 [1.2K]

Well every 15 minutes he walks 1 step. So divide an hour which is 60minutes by 15 minutes. Then the answer to that you multiply by 1. So the equation would be (60/15)x1= and you will find the answer.

4 0

3 years ago

Which two ratios show a proportional relationship?

olga2289 [7]

The answer is B ahaha

5 0

4 years ago