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3 years ago

Write a formula to describe the sequence

Mathematics

1 answer:

Dominik [7]3 years ago

8 0

Answer:

Step-by-step explanation:

A(n) = 1 - 0.1(n-1)

A(1) = 1- 0.1*(1-1) = 1 - 0.1*0 = 1

A(2) = 1- 0.1*(2-1) = 1 - 0.1*1 = 1- 0.1 = 0.9

A(3) = 1 - 0.1(3-1) = 1 - 0.1*2 = 1-0.2=0.8

Method:

A(1)=1

D = A(2)-A(1) = 0.9 - 1 = -0.1

A(n) = A(1)+(n-1)*d = 1 + (n-1)*(-0.1)

= 1 - 0.1(n -1)

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What is 60 x 60 - 12 =? fp ifykyk

salantis [7]

Answer:

3588

Step-by-step explanation:

60*60=3600

3600-12

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3 years ago

Read 2 more answers

Dori and Malory are tracking their steps taken as a health goal. Dori leaves her house at 12:00 p.m. and walks at 50 steps per m

docker41 [41]

Hi There!

Dori leaves her house at 12pm.

50 steps per minute until 12:20pm.

Dori has a 20 minute advantage over Malory, find the amount of steps she is ahead by,

12 - 12:20pm. steps = 20 minutes = 20 x 50 = 1000 steps

Malory leaves her house at 12:20pm.

Walks 90 steps per minute.

12:20 - 12:30 pm. = 10 minutes = 10 x 90 = 900

Dori 12:20 - 12:30pm. = 10 minutes = 10 x 50 = 500

500 + 1000 = 1500

Mallory 12:30 - 12:40 = 10 minutes = 10 x 90 = 900

900 + 900 = 1800

Dori 12:30 - 12:45pm. = 15 minutes = 15 x 50 = 500

1750 + 500 = 2250

Mallory 12:40 - 12:45pm. = 5 minutes = 10 x 90 = 900

450 + 1800 = 2250

Answer: they have the same number steps at 12:45 p.m.

Hope This Helps :)

3 0

2 years ago

The population of a small town can be modeled by the equation where t is the number of years since the collection of the populat

liberstina [14]

The true statements is the population was 4800 when the collection of data began. (3rd option)

<h3>What is an exponential function?</h3>

An exponential equation can be described as an equation with exponents. The exponent is usually a variable.

The general form of exponential equation is f(x) = $e^{x}$

Where:

x = the variable
e = constant

When a population grows at an exponential rate, it usually has compound rate of growth. Compound growth refers to the geometric progression of a variable.

The exponential equation used to represent an exponential growth usually have this form:

FV = PV (1 + r)^n

Where:

FV = future population
PV = present population
r = rate of growth
n = number of years

Given this exponential equation : f(x) = 4800 (1.02)^t

4800 = initial population or population when the data collection began
2 % = rate of growth
t = number of years

To learn more about exponential functions, please check: brainly.com/question/26331578

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1 year ago

Without solving. what value for n makes this equation true?

Pavel [41]

Answer:

$52$

Step-by-step explanation:

$n + 94 = 32 + 114$

$n + 94 = 146$

$n = 146 - 94$

$n = 52$

<h3>Hope it is helpful...</h3>

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3 years ago

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2 years ago