One of the authors received a credit card bill to $2,944, but it included a charge of $1,898 that was not valid. Find the values of the absolute and relative errors. The value of the absolute error is $ (The value of the absolute error is) The value of the relative error is nothing% (round to the nearest integer as needed).

Answers

Answer 1

Answer:

The absolute error is $1898, the relative error is 2

What is an absolute and relative error?

An absolute error is a determinant of how large an error is. A relative error defines how good or bad an error is.

The formula for determining an absolute error is;

Absolute error = measured value - actual value

The formula for determining a relative error is:

relative error = absolute error/actual value

From the parameters given:

The absolute error can be computed as:

Absolute error = 2944 - (2944 - 1898)

Absolute error = 2944 - 1046

Absolute error = $1898

The relative error = 1898/1046

The relative error = 1.8

The relative error ≅ 2 (as an integer)

Learn more about absolute error and relative error here:

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!!!HELP!!! PLEASE SHOW WORK SO I CAN UNDERSTAND!A ball shaped like a sphere has a radius of approximately 2 1/8 inches. Which of the following is the best estimate of the volume of the ball?
32 in³
11 in³
25 in³
17 in³

Answers

The only part of this problem that's the least bit tricky is knowing
the formula for the volume of a sphere. Here is is:

Volume of a sphere = (4/3) (pi) (radius of the sphere)³ .

Everything else is just arithmetic.

pi . . . use 3.14
Radius . . . 2-1/8 inches. It'll be easier if we write that as 2.125 inches.

Now, just put the numbers into their places in the formula:

Volume = (4/3) (pi) (radius of the sphere)³

= (4/3) (3.14) (2.125)³

and run that through your calculator.

When I run it through mine, I get 40.174 in³ .

None of the choices is anywhere near that number.
I'm worried, and I don't understand that.

Maybe we should look back at the question, and notice that
it says "estimate" ... something you do quickly in your head.

OK. We know the real formula ... Volume = (4/3) (pi) (radius)³ .
How could we estimate this quickly in our head?

pi . . . instead of 3.14, just use 3

radius . . . instead of 2-1/8, just use 2 . Then (radius)³ = 2 x 2 x 2 = 8

Then (4/3) (pi) (radius)³ = (4/3) (3) (8) = (4/3) of 24 = 32 .

Well now, will you look at that ! I guess that's where the 32 came from
on the list of choices.

mark went to two stores to buy a shirt,pants,and shoes. he wants to know which store has the better deal. ( item:shirts $23.89,pants $15.67,shoes $9.99 John's store) ( item: shirts $21.35,pants $12.45,shoes $12.99 sam's store) these are the questions:A. which store has the better deal? prove it. B. if mark has 3 twenty dollars bills ,what would the change be form the store that had the better deal? C. if mark bough 2 pants for m the store that had the better deal, what would his total cost be?

Answers

If he is only buying one of each, then his total cost from each store would be:

John's: $23.89 + $15.67 + $9.99 = $49.55
Sam's: $21.35 + $12.45 + $12.99 = $46.79

So, Sam's has the better deal (proof above).

If he has 3 twenty dollar bills, then he has $60.
His change would be:

$60 - $46.79 = $13.21

If he bought two pants from Sam's (the store with the better deal), then his total would be:

(2)($21.35) + $12.45 + $12.99 = $68.14

A survey found that 40% of shoppers at Max-a-mart like chocolate ice cream. If 20 shoppers like chocolate ice cream, how many people were surveyed? a) 20

b) 30

c) 50

d) 100

Answers

C) 50

Because 40%+40%=80%=20+20=40 100%-80%=20%=10

Answer:

Step-by-step explanation:

a farm raises cows and chickens. the farmer has a total of 42 animals. one day he counts the legs of all animals of his animals and realizes he has a total of 114. how many cows does the farmer have? how many chickens?

Answers

Let's call cows x, and chickens as y.

Cows have 4 legs
Chickens have 2 legs.

Let's make two equations from the information they gave us!

x + y = 42
4x + 2y = 114

Now, let's multiply the first equation by 4.

4x + 4y = 168
4x + 2y = 114

Now, subtract the second equation from the first one.

4x - 4x + 4y - 2y = 168 - 114

4y - 2y = 168 - 114

2y = 54

y = 27

Now, plug y = 27 into either equation and solve for x.

x + y = 42

x + 27 = 42

x = 42 - 27

x = 15

There are 15 cows and 27 chickens.

If a triangle has one angle that measures 51° and one angle that measures 39°, what kind of triangle is it?

Answers

it is a acute triangles because the degrees are less than 90 degrees

The triangle is a acute triangle because the angles are less than 90.

Each shape is 1 whole. write a fraction greater than 1 for the parts that are shaded

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What parts are shaded...you gotta help us out here bro...

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