The price per mp3 download 5 years ago was $0.99. Now, each mp3 download costs $1.29. Which statement is true?

Answers

Answer 1

Answer:

inflation?

Step-by-step explanation:

nothing here

Answer 2

Answer:

that would be an example of inflation.

I noticed your question was not complete, so I hope this helps you as much as possible.


Related Questions

help!!! meee ASAPPP 18 + brainlest

Answers

Answer:

Angle CFD = 30°

Step-by-step explanation:

HOPE THIS HELP YOU,FOR ANY QUESTION PLEASE ASK ME

3. Megan is having a meal with her friends.
She is going to choose one starter, one main and one dessert.
This is the menu.
Starter Main Dessert
Soup
£2.50 Chicken
£6,25 Trifle
£3.50
Prawns
£4.25 Beef
£8.00 Brownie
£4.00
Melon
£3.50 Pork
£7.50 Eton Mess £4.50
Megan has £15
List all the possible combinations that Megan can afford.

Answers

SCT,SCB,SCE,SBT, SBBR, SBE,SPT,SPB,SPE

PCT,PCB,PCE,PBT,PBBR, PBE, PPO,T,PPOB,PPOE

MCT,MCB,MCE,MBT,MBBR,MBE,MPT,MPB,MPE

THIS is in abrieviations.

A pencil is 712 inches long.
How long is the pencil in centimeters?

Answers

Answer:

1808.48 centimeters long

Answer:

1808.48 cm

Step-by-step explanation:

the conversion from inches to cm is 2.54cm per inch

with that in mind,

take the 712 inch pencil and multiply it by 2.54 cm to convert it

leading to

712 * 2.54 = 1808.48 cm long.

Solve 37+z≤54. Graph the solution.

Answers

Answer:

z ≤ 17

Step-by-step explanation:

Step 1: Subtract 37 from both sides.

[tex]37 + z - 37\leq 54-37[/tex] [tex]z\leq 17[/tex]

Z will equal 18 and your graph will start at 16 going backwards up to minus infinity! As well as a bracket being this : xe [-infinity, 18]

12 car washes for $100 or 5 car washes for $45, state how much you will save per item

Answers

Answer:

$6

Step-by-step explanation:

you will save 6 dollars per item

7. Find the area of the figure.
Is it right??

Answers

Answer:

28.5 units²

Step-by-step explanation:

You are correct.

You divided the figure into a square, a rectangle and a triangle.

You can also just divide into a rectangle and a triangle as I did below, and there are other ways of dividing the figure to find the area.

Bottom rectangle: 8 units by 3 units

Top triangle: base = height = 3 units

total area = area of rectangle + area of triangle

total area = length × width + base × height / 2

total area = 8 units × 3 units + 3 units × 3 units / 2

total area = 24 units² + 4.5 units²

total area = 28.5 units²

help me figure it out

Answers

1,7 -2,-2
The ones that are directly on the line. but i think that’s the answer

How much should you invest in a continuously compounded account at an annual interest rate of 6% if you want exactly $8000 after four years? (Round to the nearest cent)

Answers

[tex]~~~~~~ \textit{Continuously Compounding Interest Earned Amount} \\\\ A=Pe^{rt}\qquad \begin{cases} A=\textit{accumulated amount}\dotfill & \$8000\\ P=\textit{original amount deposited}\\ r=rate\to 6\%\to \frac{6}{100}\dotfill &0.06\\ t=years\dotfill &4 \end{cases} \\\\\\ 8000=Pe^{0.06\cdot 4}\implies 8000=Pe^{0.24}\implies \cfrac{8000}{e^{0.24}}=P\implies 6293.02\approx P[/tex]

What is the distance between (4, −3) and (9, −3) ? Enter your answer in the box.

Answers

Answer:

5 units

Step-by-step explanation:

Luckily, we don't need to use the distance formula as we just need to find the distance between the x-coordinates. Thus, |4-9| = |-5| = 5, which means that the distance between (4,-3) and (9,-3) is 5 units

Answer:

5

Step-by-step explanation:

Point (4, -3) and point (9, -3) have the same y-coordinate of -3.  Therefore, both points are on the line y = -3.

Any line that is y = {number} is a horizontal line.

Therefore, to find the distance between the points, find the difference between the x-values:

9 - 4 = 5

Therefore, the distance between (4, −3) and (9, −3) is 5

1 / sec^2x + 1 / csc^2x = 1

I need help verifying the trig function with steps.

Answers

Step-by-step explanation:

answer is provided in picture

Peter can mow his lawn in 6 minutes. Peter's son can mow it in 8 minutes. How long will it take them to do it together?

Answers

Answer:

3 minutes 26 seconds

Step-by-step explanation:

rate x time in Distance problems, and W = rate x time in work problems. The Work is generally 1, the whole job.

For Peter the formula is 1 (lawn mowed) = 1/6 lawn per minute x 6 minutes.

For the son the formula is 1 = 1/8 * 8.

Add their rates together, 1/8 + 1/6 = 3/24 + 4/24 = 7/24.

The equation for their rate working together is 1 = 7/24 * t

Divide both sides by 7/24 to find t. t = 1 / 7/24 = 1 * 24/7 = 24/7 = 3 and 3/7 minutes = approx. 3 minutes 26 seconds.

6 - 6,12,18,24,30,36,42,48,54,60
8 - 8,16,24,32,40,48,56,64,72,80
Answer should be 24 minutes.

Please answer as soon as possible, and show all work. Thank you.

Answers

Answer:

[tex]\displaystyle f'(x) = -12x^2 + 4x[/tex]

General Formulas and Concepts:

Algebra I

Terms/Coefficients

Expanding/Factoring

Calculus

Limits

Limit Rule [Variable Direct Substitution]:                                                 [tex]\displaystyle \lim_{x \to c} x = c[/tex]

Differentiation

DerivativesDerivative Notation

The definition of a derivative is the slope of the tangent line:                       [tex]\displaystyle f'(x) = \lim_{h \to 0} \frac{f(x + h) - f(x)}{h}[/tex]

Step-by-step explanation:

Step 1: Define

Identify.

[tex]\displaystyle f(x) = -4x^3 + 2x^2[/tex]

Step 2: Differentiate

[Function] Substitute in x:                                                                         [tex]\displaystyle f(x + h) = -4(x + h)^3 + 2(x + h)^2[/tex]Substitute in functions [Definition of a Derivative]:                                 [tex]\displaystyle f'(x) = \lim_{h \to 0} \frac{-4(x + h)^3 + 2(x + h)^2 - \big( -4x^3 + 2x^2 \big)}{h}[/tex]Simplify:                                                                                                     [tex]\displaystyle f'(x) = \lim_{h \to 0} \frac{-12hx^2 - 12h^2x + 4hx - 4h^3 + 2h^2}{h}[/tex]Factor:                                                                                                           [tex]\displaystyle f'(x) = \lim_{h \to 0} \frac{h \big( -12x^2 - 12hx + 4x - 4h^2 + 2h \big)}{h}[/tex]Simplify:                                                                                                        [tex]\displaystyle f'(x) = \lim_{h \to 0} -12x^2 - 12hx + 4x - 4h^2 + 2h[/tex]Evaluate limit [Limit Rule - Variable Direct Substitution]:                       [tex]\displaystyle f'(x) = -12x^2 - 12(0)x + 4x - 4(0)^2 + 2(0)[/tex]Simplify:                                                                                                     [tex]\displaystyle f'(x) = -12x^2 + 4x[/tex]

∴ the derivative of the given function will be equal to -12x² + 4x.

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Learn more about derivatives: https://brainly.com/question/25804880

Learn more about calculus: https://brainly.com/question/23558817

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Topic: AP Calculus AB/BC (Calculus I/I + II)

Unit: Differentiation

The magnitude, M, of an earthquake is defined to be M = log StartFraction I Over S EndFraction, where I is the intensity of the earthquake (measured by the amplitude of the seismograph wave) and S is the intensity of a "standard" earthquake, which is barely detectable. What is the magnitude of an earthquake that is 1,000 times more intense than a standard earthquake? Use a calculator. Round your answer to the nearest tenth. 2 3 2004. 5 6. 9.

Answers

Answer:

9

Step-by-step explanation:

When you measure an angle you usually have to choose between two numbers because
protractors are designed to measure angles that start on either the right or left side.
There are two angles to measure in each of the problems on this sheet and the next. The
angle on the left side is angle A. The angle on the right side is angle B. Find and record
the measure of both angles in each problem.
1 The measure of angle A is ___
degrees.
2 The measure of angle B is ___ degrees.

Answers

Answer:

B= 25°

A=138° /139°

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(30pts) I am requesing help on this Algebra Question.

Answers

Answer:

I believe your answer is C

Step-by-step explanation:

Answer:   the third one ong

What is half of a hundred?

Answers

Answer:

50

Step-by-step explanation:

Here is a square of side 2a and an equilateral triangle of side a + 1
The perimeter of the square is greater than the perimeter of the triangle.

Work out the range of possible values of a.

Answers

Answer: a>0.6

Step-by-step explanation:

Solve 5^3x = 1400. Round to the nearest hundredth.
(PLEASE don't delete this. I really need help with this.)

Answers

Answer:

11.20

Step-by-step explanation:

I did this by first doing 5 x 5 x 5 which got me 125. Then I took 1400/125 to get 11.2. However you said round to the nearest hundredth which would be 11.20

If f(x) = x/2 -3 and g(x) = 4x² + x - 4, find (f+ g)(x).
O A. 4x2 + 5x-1
-X
3
O B. 4x2 + x-1
O c. 6x²_7
O. ?
D. 42 + 3x - 7

Answers

Answer:

correct answer is : D. 42 + 3x - 7

use rhombus DEFG if GE=42 and DH=16 find GF

Answers

The value of GF in the rhombus is 26.4

Properties of a rhombus:All the sides are equalOpposite angles are equaladjacent angles are supplementaryDiagonals are perpendicular bisector of each other

Therefore,

DH = HF = 16

GH = HE = 21

Using Pythagoras theorem we can find GF as follows:

GF = √21² + 16²

GF = √441 + 256

GF = √697

GF = 26.4007575649

GF = 26.4

learn more on rhombus here: https://brainly.com/question/26665674

5 3/7 x 3 1/2 pls help me bc iwill get trouble

Answers

Answer:

19

Step-by-step explanation:

5 3/7 = 5 x 7= 35 + 3= 38/7
3 1/2= 3x 2= 6+ 1= 7/2
38/7 x 7/2= 38 x 7= 266 7 x 2= 14
266/14 *divided* = 19
Answer= 19

It’s graphs just help

Answers

Answer:

The answer is D

Step-by-step explanation:

There you go!!

substitute this equation
-1x-3y=4
2x=16

Answers

Answer:

x= 8 y= -4

Step-by-step explanation:2x=16 divide 2 on both, x=8, plug in 8 for x, -1x8-3y=4 will become = -8-3y=4 add 8 on both sides and divide by -3 the answer will be -4

Answer:

Step-by-step explanation:-

-1x - 3y = 4 (eqn 1)

2x = 16 (eqn 2)

from eqn 2

2x = 16

x = 16/2

x = 8

Substitute x = 8 into eqn 1

-1(8) - 3y = 4

-8 - 3y = 4

-3y = 4 + 8

-3y = 12

y = 12/-3

y = -4

therefore, x = 8 and  y = -4

What is the value of x in this triangle ?

Answers

I may be wrong but I think it’s 14°.

125 + 41 = 166

180 - 166 = 14

In circle O, CD = 30, OM = 8, ON = 9, CD I OM, ERION (The figure is not drawn to scale.)
POS
D
a. Find the radius. If your answer is not an integer express it in radical form.
b. Find FN. If your answer is not an integer, express it in radical form,
C. Find EF. Express it in radical form


PLEASE HELP!!

Answers

Answer:

Step-by-step explanation:

MC = MD = 1/2CD and EN = FN = 1/2EF

OC = √OM² + MC²

= √64 + 225

= √289

= 17 (a)

FN = √OP² - ON²

= √289 - 64

= √225

= 15 (b)

EF = 2 x FN

= 2 x 15

= 30 (c)

the 8th term of an arithmetic sequence is -42 and the 16th term is -74. Find and simplify an expression for the nth term

Answers

Answer:

[tex]a_{n}[/tex] = - 4n - 10

Step-by-step explanation:

the nth term of an arithmetic sequence is

[tex]a_{n}[/tex] = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

given a₈ = - 42 and a₁₆ = - 74 , then

a₁ + 7d = - 42 → (1)

a₁ + 15d = - 74 → (2)

subtract (1) from (2) term by term to eliminate a₁

8d = - 74 - (- 42) = - 74 + 42 = - 32 ( divide both sides by 8 )

d = - 4

substitute d = - 4 into (1) and solve for a₁

a₁ + 7(- 4) = - 42

a₁ - 28 = - 42 ( add 28 to both sides )

a₁ = - 14

Then

[tex]a_{n}[/tex] = - 14 - 4(n - 1) = - 14 - 4n + 4 = - 4n - 10

Answer:

[tex]a_{n}=-10-4n[/tex]

Step-by-step explanation

[tex]a_{n}=a_{1}+(n-1)d\\Given:a_{8}=-42\\&a_{16}=-74\\Hence: \\a_{8}=a_{1}+7d=-42 (1)a_{16}=a_{1}+15d=-74 (2)\\ \left \{ {{a_{1}+7d=-42} \atop a_{1}+15=-74}} \right. \\(2)-(1):8d=-32\\ d=-32/8 =-4\\Substitute :d=-4 in equation (1)"\\-42=a_{1}+7(-4)\\-42=a_{1}-28\\a_{1}=-14\\Hence:\\a_{n}=-14-(n-1)4\\a_{n}=-14-4n+4\\a_{n}=-10-4n[/tex]

Giving right answer branleist

Answers

Answer:

Slope is -0.6, hope this helps

Song randomly pulled a marble from a bag, recorded its color, put it back, and repeated. The results are shown in the following table.


Color Frequency

Blue 22

Green 19

Purple 20

Red 18

Yellow 21


If Song were to repeat the experiment 25 more times, how many of those times should he expect to pull a purple marble?


Enter your answer as a number, like this: 42

Answers

Step-by-step explanation:

when counting the events we see, he did

22+19+20+18+21 = 100 experiments.

and he got in 20 cases out of the possible 100 a purple marble.

that means the observed probability to pull a purple marble is 20/100 = 1/5.

now he does 25 more pulls.

each with the probity of 1/5 to pull a purple marble.

so, he should expect to pull a purple marble 25×1/5 = 5 times.

PLEASE HELP!! IT'S DUE TONIGHT!

Answers

Answer:

Step-by-step explanation:

All triangles without exception, have 3 angles that add to 180o.

You know two of them. The statement above will help you get the third.

35 + 33 + x = 180                Combine the left

68 + x = 180                        Subtract 68 from both sides.

x = 180 - 68

x = 112

Answer: The value of x is 112

Step-by-step explanation:

add the two values given: 35+33= 68

then subtract 68 from 180 (sum of angles is 180°) = 112

112+35+33= 180

What is the distance between (−9, 6) and (10, 6) ?

Enter your answer in the box.

Answers

Solution:

Step-1: Plot the points on the graph.

~Graph attached

Step-2: Find the distance by counting

We can see that (-9,6) is 9 units to the left of the origin and 10 units further to reach (10, 6).

Distance between two points: 9 + 10 Distance between two points: 19 units

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