You buy a book for $12 and a CD for $6. You hand a sales cleck a $20. How much change should you get back?

Answers

Answer 1

Answer:

20-12-6=2

Step-by-step explanation:

why is this in college math bruh

Answer 2

Answer:

You should get $2 in change

Step-by-step explanation:


Related Questions

helpp plssssss i need

Answers

the answer to your question is 3m^4

Answer:

3m^4

Step-by-step explanation:

x^y

x is the base and y is the exponent

What is the mother land

A-Mother russia

B-Morther amica

C-mother shrek

Answers

Answer:

A

Step-by-step explanation:

Mother Russia is the mother land

Explain in your own words when it is best to solve a system using analytical methods versus using graphical or algebraic methods.

Answers

Answer:

Analytical methods are the preferred way to determine the outcome of a hypothesis when associated equations are simple and a precise answer is desired.

The algebraic method is more precise. When you "solve" a system you are really identifying the points that all of the lines have in common. In other words, the point at which the lines intersect. Finding the solution with graphs is not precise, but should usually be close enough if that is what is asked.

what is 3t – 6 = t –2.

Answers

Answer:

t=2

Step-by-step explanation:

3t-6=t-2(Group like terms)

3t-t=-2+6

2t=4(Divide both sides by 4)

t=2( This is because when you divide both sides by 2, 2 can divide 4 2 times so that's why we have t as equal to 2)

Just double check my work tell me if I’m wrong. But you don’t have to fix it. Thank you

Answers

Answer:

Todas estan bien

Step-by-step explanation:

Worth 75 points!! Need help with calculus

Answers

The correct answer is:

2u-v=7(5i-3j)

Therefore, 5, and 3 go inside the box.

What equation models the points on the graph

Answers

Here you go! Hope this helps
Y=7x+10 or answer b is correct. This is correct because 10 indicates the y intercept and 7 indicates the slope of the graph shown because the equation is in slope intercept form.

Please Help me with this​

Answers

Answer:

16X^2 - 8x

Step-by-step explanation:

A = L x W

L = x + 5 + 3x + 4x - 9 = 8x - 4

W = 2x

(8x - 4) (2x) = 16x^2 - 8x

If AABC and AXYZ are similar, which must be true?

Answers

Answer:

(D).

Step-by-step explanation:

ΔABC ~ ΔXYZ

(D).  [tex]\frac{AC}{XZ}[/tex] = [tex]\frac{BA}{YX}[/tex]

The domain of a function f(x) is x>_ 0, and the range is y<_ -1. What are the domain and range of its inverse function, f'(x)?​

Answers

Answer:

Domain of inverse: [tex]x \le -1[/tex]

Range of inverse: [tex]y \ge 0[/tex]

Explanation:

The domain and range swap. This is because the inputs (x) and outputs (y) swap roles when going from the original function to the inverse, and vice versa.

DONT SCAM ME 100 POINTS ANSWER QUICK

Answers

Answer:

c a those are the answers in order

Answer:

D, C, C, A, B, C

Step-by-step explanation:

How do you do this question?

Answers

Answer:

∑ₙ₌₀°° (-3x)ⁿ / n!

R = ∞

Step-by-step explanation:

Maclaurin series is:

∑ₙ₌₀°° f⁽ⁿ⁾(0) xⁿ / n!

Find the nth derivative and evaluate at x=0:

f(x) = e⁻³ˣ

f⁽ⁿ⁾(x) = (-3)ⁿ e⁻³ˣ

f⁽ⁿ⁾(0) = (-3)ⁿ

The Maclaurin series is therefore:

∑ₙ₌₀°° (-3)ⁿ xⁿ / n!

∑ₙ₌₀°° (-3x)ⁿ / n!

Use ratio test to find the radius of convergence.

lim(n→∞)│aₙ₊₁ / aₙ│< 1

lim(n→∞)│[(-3x)ⁿ⁺¹ / (n+1)!] / [(-3x)ⁿ / n!]│< 1

lim(n→∞)│(-3x) n! / (n+1)!│< 1

lim(n→∞)│3x / (n+1)│< 1

0 < 1

The radius of convergence is infinite.

6 is the ______ root of 36​

Answers

6 is the square root of 36.

6(6) = 36

Answer:

6 is the square root of 36

Darnell has 8 coins worth $1.80. If the coins are all quarters and nickels, how many quarters and nickels does he have?

Answers

Answer:

7 quarters 1 nickel

Step-by-step explanation:

7 x.25= 1.75

1.75+ .05= 1.80

If r = 18 cm, what is the area of this sector? Express your answer
to the nearest tenth of a centimeter.
A 424.2 cm?
536.2 cm?
1
508.9 cm
834.1 cm?

Answers

Answer:

466

Step-by-step explanation:

nnnnnnnn

When plotting points on the coordinate plane below, which point would lie on both the x-axis and the y-axis?
O (0,0)
0 (0,6)
O (4,0)
O (1,1)

Answers

Answer:

0,0

Step-by-step explanation:

bcbcbb

Answer:

Your answer is 0,0

Step-by-step explanation:

I took the quiz

Give the common denominator (LCD) OF​

Answers

What’s the number then I could help

A grocery store sells a bag of 4 lemons for $0.79. Which pricing option would result in the same unit price for each lemon?
O A. twelve lemons for $2.37
O B. three lemons for $0.65
O C. six lemons for $1.20
OD two lemons for $0.35
Plz help for 20 points

Answers

Answer:

.79/4= .197. Or 20 cents each

The cost per unit of lemon in Option A is same as given per unit cost of lemon in grocery store that is $0.1975

What is cost per unit?

Cost of per unit  is cost of one unit. Cost per unit can be calculated simply by dividing the total cost of all items by the quantity of given item.

Given Cost of 4 lemons  in a grocery store = $ 0.79

Cost of 1 lemon in the grocery store = total cost / 4  = $ 0.79÷ 4 = $0.1975

To check pricing option for same pricing check per unit price of each option.

A.  Given twelve lemons for $2.37

    Given Cost of 12 lemons = $ 2.37

    Cost of 1 lemon = total cost / 12  = $ 2.37 ÷ 12  = $0.1975

B. Given three lemons for $0.65

    Given Cost of 3 lemons = $ 0.65

    Cost of 1 lemon = total cost / 3  = $ 0.65 ÷ 3 = $0.2167

C. Given six lemons for $1.20

    Given Cost of 6 lemons = $1.20

  Cost of 1 lemon = total cost / 6  = $ 1.20 ÷ 6 = $0.2

D. Given  two lemons for $0.35

    Given Cost of 2 lemons = $0.35

  Cost of 1 lemon = total cost / 2  = $ 0.35 ÷ 2 = $0.175

Therefore , option A has same per unit cost $0.1975  as given pricing of the grocery store.

Also, learn more about cost price from the link below:

https://brainly.com/question/11027396

#SPJ2

   

     

What’s a rationale number ?

Answers

Answer:

A Rational Number can be made by dividing two integers.

(An integer is a number with no fractional part.)

Step-by-step explanation:

Answer:

A rational number is a number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q.

Step-by-step explanation:

Hope this helps. :D

An envelope is 48 centimeters wide, and it measures 52 centimeters along the diagonal. How tall is the envelope?

Answers

Answer:

20 cm.

Step-by-step explanation:

Pythagorean Theorem a^2 + b^2 = c^2 (c is the hypotenuse).

Plug it in.

48^2 + b^2 = 52^2

2,304 + b^2 = 2,704

Isolate the variable.

b^2 = 400

b = 20

in jacks class 18 of the students are tall and 10 are short. in Michaels class 54 students are tall and 30 students are short. which lass has a higher ratio of tall to short students

Answers

Answer:

uhh what kinda class is that big- anyways

Step-by-step explanation:

jacks class

18:10

If you divide 18 by 10 you get 1.8

Micheals class

54:30

If you divide 54 by 30 you get 1.8

therefore neither. They are both equivalent

the Ratio of tall to short students in the Michels and jacks class is equal which is 1.8.

What is ratio?

The ratio can be defined as the number that can be used to represent one quantity as a percentage of another. Only when the two numbers in a ratio have the same unit can they be compared. Ratios are used to compare two objects.

Given, in jacks class 18 of the students are tall and 10 are short. in Michaels's class, 54 students are tall and 30 students are short.

The ratio of tall to short students in jacks class = 18/10 = 1.8

The ratio of tall to short students in Micheals's class = 54/30

The ratio of tall to short students in Micheals's class = 1.8

Therefore, the Ratio of tall to short students in the Michels and jacks class is equal which is 1.8.

Learn more about ratios here:

https://brainly.com/question/13419413

#SPJ2

Help I will give you brainliest

Answers

Answer: 56 45 46

Step-by-step explanation: learned about it in math class

Find the smallest sample size n that will guarantee at least a 90% chance of the sample mean income being within $500 of the population mean income.

Answers

Answer:

The smallest sample size n that will guarantee at least a 90% chance of the sample mean income being within $500 of the population mean income is 48.

Step-by-step explanation:

The complete question is:

The mean salary of people living in a certain city is $37,500 with a standard deviation of $2,103. A sample of n people will be selected at random from those living in the city. Find the smallest sample size n that will guarantee at least a 90% chance of the sample mean income being within $500 of the population mean income. Round your answer up to the next largest whole number.

Solution:

The (1 - α)% confidence interval for population mean is:

[tex]CI=\bar x\pm z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}[/tex]

The margin of error for this interval is:

[tex]MOE=z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}[/tex]

The critical value of z for 90% confidence level is:

z = 1.645

Compute the required sample size as follows:

[tex]MOE=z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}[/tex]

      [tex]n=[\frac{z_{\alpha/2}\cdot\sigma}{MOE}]^{2}\\\\=[\frac{1.645\times 2103}{500}]^{2}\\\\=47.8707620769\\\\\approx 48[/tex]

Thus, the smallest sample size n that will guarantee at least a 90% chance of the sample mean income being within $500 of the population mean income is 48.

im dumb sorry somebody help?

Answers

The decimal is .39024..., or rounded to percent it is 39%

what are vowels in numbers ​

Answers

hi! i'm not really sure if i comprehend this question clearly, but if you're talking about the vowels in the word "numbers"...

Answer:

the letter "u" and "e"

Step-by-step explanation:

vowels in english are: a, e, i, o, u

hope this helped but if you have any others questions, please feel free to let me know!

Is this relation a​ function?

Answers

Answer:

yes though i am not completely sure

Step-by-step explanation:

How far are 2 and -5 apart on the number line?

Answers

It is 7 apart on the number line.

Easy Points!!!! What net force is required to accelerate a car at a rate of 2 m/s if the car has a mass of 3,000 kg?

Answers

Answer:

[tex]\boxed {\boxed {\sf 6,000 \ Newtons}}[/tex]

Step-by-step explanation:

Force can be found by multiplying the mass by the acceleration.

[tex]F= m*a[/tex]

The mass of the car is 3,000 kilograms and the acceleration is 2 meters per second squared.

[tex]m=3,000 \ kg \\a= 2 \ m/s^2[/tex]

Substitute the values into the formula.

[tex]F= 3,000 \ kg * 2 \ m/s^2[/tex]

Multiply.

[tex]F=6,000 \ kg*m/s^2[/tex]

1 kg*m/s² is equal to 1 Newton (N). Therefore, our answer of 6,000 kg*m/s² is equal to 6,000 Newtons.

[tex]F= 6,000 \ N[/tex]

The force required is 6,000 Newtons

Given:

Mass = 3,000 kg

Acceleration = 2 m/s^2

To Find:

The net force.

Formula:

Force = Mass × Acceleration

Explanation:

Force = 3,000 kg × 2 m/s^2

Force = 6,000 kg × m/s^2

We know that kg × m/s^2 = Newton.

Hence, the net force required is 6,000 N.

6,000 N is the correct answer.

what is the 5th root of 1/32

Answers

Answer:

[tex] \sqrt[5]{ \frac{1}{32} } \\ = \sqrt[5]{( \frac{1}{2} ) {}^{5} } \\ = \frac{1}{2} [/tex]

1/2 is the correct answer of this question......

thank you ☺️

find the value of x
help

Answers

Answer:

6.7

Step-by-step explanation:

This is trigonometry. We will have to find the opposite leg and the hypotenuse is given to us as 10. So we will have to use sin.

Soh in Soh cah toa

                  So  sin(42)=x/10

                        10 times sin(42)=x

                             Evaluate using a calculator=6.69130606 and so on

                                 Rounded to the nearest tenth is 6.7

So the answer is 6.7

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