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3 years ago

Find a formula for an arithmetic sequence that begins 80, 83, 86, 89, ...

Mathematics

1 answer:

mel-nik [20]3 years ago

3 0

Answer:

$a_{n}$ = 3n + 77

Step-by-step explanation:

The nth term of an arithmetic sequence is

$a_{n}$ = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 80 and d = a₂ - a₁ = 83 - 80 = 3 , then

$a_{n}$ = 80 + 3(n - 1) = 80 + 3n - 3 = 3n + 77

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For brainiest:):):):):):):)

andrew-mc [135]

Answer:

15 = 0.025

16= 3 years

Step-by-step explanation:

15.

I=prt

15= (200)(r)(3)

200(3) = 600r

15 divided by 600r = 40 (0.025)

------------------------------------------------------

16.

I=prt

$t= \frac{I}{Ixp} \\t= \frac{90}{0.05x600} \\t= 3$

t= 3 years

5 0

3 years ago

A surveryor wants to know how many shoppers at a mall like to read books. He surveys 100 people coming out of a bookstore at the

bonufazy [111]

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2 years ago

Read 2 more answers

Evaluate this expression. 5^-3

sweet-ann [11.9K]

Answer:

$\Huge \boxed{\frac{1}{125}}$

Step-by-step explanation:

<h2>Order of operations</h2>

PEMDAS

Parenthesis, exponent, multiply, divide, add, and subtract from left to right.

Do exponent.

$\displaystyle \frac{1}{5^3}$

$\displaystyle 5^3=5\times5\times5=125$

$\displaystyle \frac{1}{125}=125$

$\large \boxed{\frac{1}{125}}$ , which is our answer.

Hope this helps!

4 0

3 years ago

What is 2.346 as a percent

34kurt

Answer:

Step-by-step explanation:

to turn a decimal to a percent, multiply by 100.....or if there is a decimal in there, start from the decimal and just move 2 spaces to the right.

2.346 = 234.6%

and just so you know, to turn a percent to a decimal, divide by 100...or move the decimal point 2 spaces to the left

6 0

3 years ago

What is the volume of a cylinder with a height of 4xy^4 and a radius of 2x? (The formula fo

OLga [1]

Answer:

volume: $\sf 16\pi x^3y^4$

given:

height: $\sf 4xy^4$

radius: $\sf 2x$

<u>cylinder volume</u>:

$\hookrightarrow \sf \pi r^2h$

$\hookrightarrow \sf \pi (2x)^2(4xy^4)$

$\hookrightarrow \sf \pi (4x^2)(4xy^4)$

$\hookrightarrow \sf 16\pi x^3y^4$

3 0

2 years ago

Find a formula for an arithmetic sequence that begins 80, 83, 86, 89, ...​

Find a formula for an arithmetic sequence that begins 80, 83, 86, 89, ...