Mathematics High School

What is the average rate of change for a
babysitter that earns $9 for 1hr and $36
for 4 hrs?
3

Answers

Answer 1
$9 is the average rate of change!

Related Questions

easy math - lots of points

Answers

Answer:

a=-5, k=31

Step-by-step explanation:

Determine a and k so the given points are on the graph of the function:

(1,11) (2,-14)

[tex]y=a(x+1)^2+k[/tex]

To find the required values, we substitute the points into the equation:

[tex]11=a(1+1)^2+k[/tex]

[tex]-14=a(2+1)^2+k[/tex]

Operating:

[tex]11=a(2)^2+k[/tex]

[tex]-14=a(3)^2+k[/tex]

Simplifying:

[tex]11=4a+k[/tex]

[tex]-14=9a+k[/tex]

Subtract the second equation from the first equation:

[tex]11+14=4a-9a[/tex]

Simplifying:

[tex]25=-5a[/tex]

Solving:

[tex]a=25/(-5)=-5[/tex]

a=-5

Use this equation to find k:

[tex]11=4a+k[/tex]

[tex]11=4(-5)+k[/tex]

[tex]11=-20+k[/tex]

k=31

a=-5, k=31

Answer:

a = -5

k = 31

Plz Mark brainliest!!!

help will give crown only REAL ANSWERS COMMENT IF YOU HAVE A QUESTION

Answers

Answer:

A

Step-by-step explanation:

In that example the plane is going up constantly whereas in example B the plane in going down, in example C the plane it going up but the stops and goes at the same speed, and in D the plane it once again going down.

What is the least common facter of 9 and 12?

Answers

Answer:

3

Step-by-step explanation:

You need to know the least common denominator (LCD) of 9 and 12 if you want to add or subtract two fractions with 9 and 12 as denominators. The least common denominator, also called lowest common denominator (LCD), of 9 and 12 is 36.

A librarian wants to spend no more than $800 on some new desks and chairs for the library. The librarian decides to spend $320 on desks.

If each chair costs $24, what is the maximum number of chairs the librarian can buy for the library and stay within the budget?

Answers

Answer:

I think 20

Step-by-step explanation:

480/24

The maximum number of chairs that the librarian can buy is 20

What are mathematics operations?

A mathematical operation is a function that converts a set of zero or more input values (also called "b" or "arguments") into a defined output value. The number of operands determines the operation's arity. Most commonly studied operations are binary operations (i.e., operations of arity 2), such as addition and multiplication, and unary operations (i.e., operations of arity 1), such as additive and multiplicative inverses.

• Zero-arity operations, or nullary operations, are constants, and mixed products are arity three operations, or ternary operations.

Since we are given the amount total budget and the total amount for the desks then the only variable missing is the maximum amount of chairs. This can be solved with the following equation in which :

s represents = the number of chairs,

and we simply solve for s.

800 = 320 + 24s  ... subtract both sides by 300

500 = 24s ... divide both sides by 24

20.83 = s

Now we see that the maximum number of chairs that the librarian can buy is 20 because 21 would make her go over the budget and you cannot have 0.83 of a chair.

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Zoe puts $1000 into a savings account. The account earns 4% interest, compounded annually. How much will be in the account after 10 years? (round to 2 decimal places) I am very sorry but I dont understand this method and I need help!!

Answers

Answer:

hmmmmm

Step-by-step explanation:

I think two would round up to the tenth because one than tents

I have 10 red smarties five blue smarties four yellow smarties and two green smarties what is the probability of pulling three red smarties

Answers

Answer:

3:10

Step-by-step explanation:

We know how many Smarties we have for all of the other colors, but those don't matter. What we need to find is the probability of pulling three RED smarties, if there are three red ones and 10 total ones, we know we have a chance at pulling only three red ones.

I hope this helps!

HELPPPP!!!
The LCM of 50, 120, and 225 is 5.


True or False

Answers

False, the LCM of 50, 120 and 225 is 1800.

5 is the GCF of 50 120 and 225, not the LCM.

Hope it helps!

Answer:

The answer is False

Step-by-step explanation:

5 is the smallest number that can fit into all 3 numbers.

Which is the graph of y = 3x] - 2?

Answers

Answer:

3rd graph

Step-by-step explanation:

Answer:

The third one

Step-by-step explanation:

You are going down the river at 2mph but your canoe loses a wheel. at this rate, how many boxes of pancake mix will it take to re-shingle your roof.

Answers

Answer:

The temperature of the sun is -498 K / meters square

Hope that helps!

Answer:

Um... Is this the real question or you just trolling???

Step-by-step explanation:

what fractions are equivalent to 3.375

Answers

Answer:

3/8 6/16 12/32 24/64 48/128 96/256

Step-by-step explanation:

1/8 is .125 so .375 is 3/8

Mark brainliest pls

The given decimal can be converted into fractions such as 3375/1000, 675/200, 135/40 and 67/20 respectively.

What is a Decimal number?

A decimal number is the representation of a number in whole and a part. The whole is represented by an integer while the part is equivalent to a number divided by the order of 10.

The decimal number is given as 3.375.

It can be written in the form of fraction as below,

3.375 = 3375/1000

Now, the other fractions can be obtained by dividing the numerators and denominators by the common factors as follows,

3375/1000 = 675/200 = 135/40 = 67/20


Hence, the fractions that are equivalent to the given decimal are 3375/1000, 675/200, 135/40 and 67/20 respectively.

To know more about decimal number click on,

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Helpppp I’ll mark brainliest

Answers

X is 5
Y is 25 and then you just multiply by 3 each time


A nursery owner buys 9 panes of glass to fix some damage to her greenhouse. The 9 panes cost $23.85 Unfortunately, she breaks 4 more panes while repairing the damage. What is the cost of
another 4 panes of glass?

Answers

Answer: 10.60 cents

Step-by-step explanation:

23.85 divided by 9=2.65

2.65 is the cost of each Pane.

So 2.65 x 4= 10.60 cents

Hope this helps!

Your welcome (:

When you’re diving fractions what does the “change” In “keep, change, flip” tell you to do?

Answers

Answer:

change

Step-by-step explanation:

it means to change the dividing symbol from dividing to multiplying

When a fraction is reduced to lowest terms, the only factor the numerator and denominator have in common is _____.

10
1
0
5

Answers

This means that there is no number, except 1, that can be divided evenly into both the numerator and the denominator. To reduce a fraction to lowest terms, divide the numerator and denominator by their Greatest Common Factor (GCF). This is also called simplifying the fraction.

I don’t understand!!!!!!!!!!

Answers

I believe the answer is that none of the solutions. Due to when plugging in all the number it seems that it’s not correct. Double check my work though.. I don’t want u to get it wrong and have it be my fault..

The area of a square is (16x^{2} +72x+81) square is centimeters what is the measuere of its side the area of a square is (side)^{2}

Answers

Answer:

Each side is (4x + 9) cm

Step-by-step explanation:

Area = (16x^{2} +72x+81)

Area = (4x+9)(4x+9)

Each side is (4x + 9) cm

Find the slope.of the line that passes through (7,5) and (3,12) simplify it

Answers

Answer:

there's no way to simplify 7/-4

in other formula it may be -4/7 but still can't be simplify.

in other way it will become a decimal

Step-by-step explanation:

1. Remember to make it as if it was a table.

2. Then you see if your #s are going decreasing or increasing(if they are decreasing that's a negative right there)

3.In the formula that I did the result of y is going over x but still works ;v

what's the sum of 2 plus 2​

Answers

Answer:

4

Step-by-step explanation:

Answer:

the sum is 4 and can i have brainliest? please i really need it

Step-by-step explanation:

7874 divided by 13

Help pls:)

Answers

Answer:

605.69 or if you round it 606 but that's the answer

can someone help me out? what comes next?

Answers

Answer:

352

Step-by-step explanation:

The terms

a₁ = 44 , a₃ = 88, a₅ = 176 are doubling each time, thus

a₇ = 2 × 176 = 352 ← the next term

PLEEEEEEEEEEEEEEEASE HELP ME WITH THIS! IT IS DUE TOMORROW!!

Answers

Answer: This can help you step by step

Step-by-step explanation:

cual es mayor 13/4 o 1 3/4

Answers

1 3/4 = 1.75

13/4 = 3 1/4

3 1/4 = 3.25

1.75 < 3.25

1 3/4 < 13/4

Can someone help me pls. the Subterranean roller coaster rises up to 50.6 feet above the ground before dropping 100.7 feet into an underground cavern. Describe the height of the roller coaster at the bottom of the cavern.

Answers

Answer:

-50.1

Step-by-step explanation:

The height of the roller coaster at the bottom of the cavern is 50.1 feet down from the ground level.

What is Subtraction?

Subtraction can be done for any numbers or algebraic expressions. It is the process of taking out certain value from a given amount of number.

The process of subtraction can also be termed as finding difference.

Given that,

Subterranean roller coaster rises up to 50.6 feet above the ground before dropping 100.7 feet into an underground cavern.

So the height of the roller coaster when it rises is 50.6 feet from the ground .

After that it drops to 100.7 feet into an underground cavern.

Height of the roller coaster now = 50.6 - 100.7

                                                      = -50.1 feet

Negative sign indicates that it is below the ground level.

Hence the height of the roller coaster at the bottom of the cavern is -50.1 feet.

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Calcuta eI 25%,35% y el 75% de 1250.​

Answers

Answer:

25% of 1250 = 312.5

35% of 1250 = 437.5

75% of 1250 = 937.5

Step-by-step explanation:

1250/100 = 12.5

12.5 * 25 = 312.5

12.5 * 35 = 437.5

12.5 * 75 =  937.5

846 x (84) what is it?

Answers

If it’s simple multiplication, the answer should be 71,064. It can be solved by hand or by calculator

Do numbers with exponents represent rational or irrational numbers? Explain your answer.

Answers

9514 1404 393

Answer:

  either

Step-by-step explanation:

They could represent either:

  2^2 = 4 . . . a rational number

  2^(1/2) = √2 . . . an irrational number

The fact that a number has an exponent does not make it either rational or irrational.

__

Additional comment

You can also consider irrational numbers with exponents.

  (∛2)^2 = 2^(2/3) . . . irrational

  (√2)^2 = 2^1 . . . . . . rational

Which one don’t lie!!!

Answers

Answer:

A

Step-by-step explanation:

m=y2-y1/x2-x1

4-2=2

6-3=3

2/3

hope this helps =3

Answer:

The answer is 2/3

Step-by-step explanation:

A. it has no rotational symmetry
B. It has rotational symmetry with an angle of rotation of 180°
C. It has point symmetry
D It has recreational symmetry
PLEASE HELP WILL MARK BAINLIST​

Answers

The answer to the question is C.
Answer is C it has point symmetry

Find f'(a). f(x)=[tex]\sqrt{2-2x}[/tex] using (f(a+h)-f(a))/h

Answers

Answer:

clculator soup

Step-by-step explanation:

whats the answer to number 5 please and thank you? please write down the steps

please help

Answers

Answer:

67

Step-by-step explanation:

Answer:

35

Step-by-step explanation:

x + 55 = 90 (Right angle triangle)

x = 90 - 55

x = 35

Please mark as brainliest.

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