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2 years ago

For the annual rate of change of -31% find the corresponding growth or decay factor

1 answer:

3 0

Firstly, the negative sign indictaes that this is a decay. Secondly, it is decaying by 31% (or 31 per 100) per annum, or 0.31, however, I dont think any of these answers are right. certainly C and D represent growth as they are 131% and 169% (1.31 and 1.69 respectively), B represents a decrease of 4% or 0.04, and A represents a decrease of 87% or 0.87, which as you can see does not correspond to to a decrease of -0.31or -31%, are you sure you have supplied all the information in the question(such as a starting point). If you have then I would refer to teacher/tutor for further examination.

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1/6,1/9,2/27,4/81 geometric sequence next value?

Blababa [14]

If you would like to know the next value, you can calculate this using the following steps:

1/6, 1/9, 2/27, 4/81, x = ?

1/9 / 1/6 = 1/9 * 6 = 6/9 = 2/3

So, if we would like to know what is the next value of this geometric sequence, you have to multiply 4/81 by 2/3:
4/81 * 2/3 = 8/243

The correct result would be 8/243.

3 0

2 years ago

Read 2 more answers

Carly tried to solve an equation step by step. 7a=28 Step 1: 7a/a = 28/7 Step 2: 7 = 4 Find Carly's mistake A: Step 1 B: Step 2

Murrr4er [49]

This are the right steps

Step 1: first you divide the both size by 7 because there is 7 a's

7a/7 = 28/7

Step 2: You solve the equation

7a/7= a. 28/7 = 4

So, the answer is a = 4

not 7 = 4

6 0

2 years ago

A new car is purchased for 17300 dollars. The value of the car depreciates at 9.25% per year. What will the value of the car be,

r-ruslan [8.4K]

Answer: 13

i got the question wrong and it told me the correct answer . thank me later

4 0

2 years ago

An insurance company collected data from a class of high school sophomores on whether or not they have a cell phone and whether

NeX [460]

Answer:

C. Those who have a car tend to have a cell phone.

Step-by-step explanation:

The relative frequency for a data set n is calculated by dividing each frequency $x_i$ by n.

We have a table that relates the use of cars and cell phones.

First, we take from the table the population that has a car.

$n = 18$

Then, of the students who have a car, 12 have a cell phone and 6 do not have a cell phone.

Then we calculate the relative frequencies $f_{x_i}$ for those who have a cell phone and those who do not.

______________________________________________

Relative frequency Students with car n = 18.

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

Cell phone No cell phone Total n

12/18 6/18 18

_______________________________________________

Relative frequency Students with car n = 18.

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

Cell phone No cell phone Total n

0.666 0.333 18

________________________________________________

Most students who have a car also have a cell phone.

Now we calculate the relative frequency for students who do not have a car.

_______________________________________________

Relative frequency Students without a car n = 7

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

Cell phone No cell phone Total n

2/7 5/7 7

_______________________________________________

Relative frequency Students without a car n = 7

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

Cell phone No cell phone Total n

0.286 0.714 7

_______________________________________________

Most students who do not have a car do not have a cell phone either.

Then these data suggest that. Those who have a car tend to have a cell phone.

Option C

6 0

2 years ago

HELP PLZ ASAP!!!!!!!!!

Anon25 [30]

Use the quadratic formula, the second, the 6th answers are correct.

3 0

2 years ago