15 POINT PLZ HURRY
If f(n) = n2 - 2n, which of the following options are correct?

Select all that apply.

f(2) = 0
f(-2) = 0
f(1) = 3
f(5) = 35
f(-4) = 24

Answer: D(2750) = 637.5

if total sales = $2750 then total donation = $637.5

Step-by-step explanation:

GIven: A local coffee shop has made a flat donation of $500 and also give a percent of their total sales over a specified weekend.

The total donation can be modeled by the function rule D(s)=500+0.05s,

where s = total sales at the coffee shop during the fundraising weekend in dollars.

Now, D(2750) = 500+0.05(2750)

= 500+ 137.5

= 637.5

i.e. if total sales = $2750 then total donation = $637.5

Answer:

car B is the least efficient shown in the graphic

Part (i)

Answer:  m/n

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Explanation:

You divide the total bill over the number of people at the dinner. This leads to the quotient and the amount each person pays (each person pays the same amount).

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Part (ii)

Answer:  80 dollars

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Explanation:

Plug in m = 400 and n = 5 to get

m/n = 400/5 = 80

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Part (iii)

Answer:  m = 7x

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Explanation:

x = m/n

x = m/7

7x = m ... multiply both sides by 7

m = 7x

The total bill is 7 times of what each person paid.

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Part (iv)

Answer:  7 people

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Explanation:

x = 20 is the amount each person paid

m = 140 is the total bill

n = number of people who went to dinner

x = m/n

20 = 140/n

20n = 140 ..... multiply both sides by n

n = 140/20 ..... divide both sides by 20

n = 7

Seven friends went to do dinner, splitting a $140 bill, paying $20 each

Answer:

m/n; $80; 7*x; 7 friends

Step-by-step explanation:

(I) $x=$m/n

(II) $x=400/5=$80

(III) $m=7*x

(IV) n=140/20=7

Answer:

$5.00 a ticket :)

Step-by-step explanation:

Divide 80 by 16, then you will have ur answer.

hope this helped </3

Answer:

i think it is 80:16

Step-by-step explanation:

hope this helped!

p.s it would be cool if you gave me the brainliest.

Answer:

x ≥ 11 /4 Hope this helped <3

Step-by-step explanation:

Let's solve your inequality step-by-step.

4x−7≥4

Step 1: Add 7 to both sides.

4x−7+7≥4+7

4x≥11

Step 2: Divide both sides by 4.

Answer:

A

Step-by-step explanation:

sub each value into x,the value is the minutes,that is, 1,2,3,....and so on to get the answer (gallons of water)

Answer:

D(6.5, 6)

Step-by-step explanation:

8-5=3/2=1.5 5+1.5=6.5

10-2=8/2=4 2+4=6

Answer:

$25.20 for the cranberry juice (see explanation)

Step-by-step explanation:

4 quarts of apple juice and 4 quarts of cranberry juice are the simplest amount I can come up with. Meaning: 4 quarts of cranberry juice being $25.20 mixed with the apple juice.

Answer:5 1/3

Step-by-step explanation:

wait nvm

one candy bar costs 0.60 cents

multiply this number by 2 and get $1.20

Answer:

The length of one side is 13 feet.

Step-by-step explanation:

To start, a square is 4 sides that are equal in length. This means that when you have a problem like this, you need to set the equations equal to each other like:

[tex]2x+5=6x-11[/tex]

In order to solve a problem like this, with the same variables on different sides, start by subtracting the smaller variable from both sides. In this case, you would be subtracting 2x from both sides, which would leave us with:

[tex]5=4x-11[/tex]

After that, you solve it like a normal one-step equation. Add 11 to both sides.

[tex]16=4x[/tex]

Now, divide both sides by 4 and you will know how much [tex]x[/tex] is worth.

[tex]4=x[/tex]

Now that we know how much [tex]x[/tex] is worth, we can plug that into either of the equations given to us. It doesn't matter which since they are equal to each other.

[tex]2(4)+5[/tex]

That would give us 13.

Answer:

the sides are 13

x= 4

Step-by-step explanation:

2x+5 = 6x-11     subtract five from both sides

2x = 6x-16        subtract 6x from both sides

-4x = -16           divide both sides by -4

x = 4                substitute into original problem

2(4) + 5 = 6(4) - 11

8 + 5 = 24 - 11

13 = 13

Answer:

12/s

Step-by-step explanation:

Answer:

157.5 pages

Step-by-step explanation:

First, find your rate. You want to know how many pages you can read per minute. We can use any nuber, but using 2 minutes will be the simplest solution:

2m = 7

---      ---      <---- Here we divide both sides of the equal sign by 2

2        2

m = 3.5 <---- we read 3.5 pages per minute

45 x 3.5 = 157.5 (We multiplied 45 because it's the number of minutes we have, by the 3.5 pages we read each minute. This gives us our total of 157.5 pages in 45 minutes.

Answer:

Step-by-step explanation:

Let x=smaller number

Then x+5=larger number

Now we are told the following:

1/5(x+x+5)=x-5 multiply each side by 5

x+x+5=5x-25 subtract 5x and also 5 from both sides

x+x+5-5-5x=5x-5x-25-5 collect like terms

-3x=-30 divide both sides by -3

x=10-----------------------smaller number

x+5=10+5=15 ---------larger number

CK

1/5(10+15)=10-5

1/5(25)=10-5

5=5

Answer:

its a

Step-by-step explanation:

because iti s

Answer:

what grade is this? Like what

Answer:x=4

Step-by-step explanation:

the rule is for each time x is increased by one y increases by 7

like 5+7=12

12+7=19

19+7=26

so

1+1=2

2+1=3

3+1=4

4 is the answer

Answer: 6.5 cm

Step-by-step explanation: 1 km = 100,000 cm, so 130 km= 130,000,00 cm, 130,000,00÷2,000,000=6.5 cm

The Charles river will be "6.5 cm" long. A complete solution is provided below.

On the map,

→ 1 : 2,000,000

As we know,

The conversion of kilometer in to centimeter is:

→ [tex]1 \ km = 100,000 \ cm[/tex]

then,

→ [tex]130 \ km= 130,000,00 \ cm[/tex]

hence,

The river will be:

= [tex]\frac{130,000,00}{2,000,000}[/tex]

= [tex]6.5 \ cm[/tex]

Thus the above answer is the appropriate.

Learn more:

https://brainly.com/question/19023195

Answer:

Sister Is a PIG

Step-by-step explanation:

and Your Friends Gets her Scraps

1)angle 2 and 3

2) angle 8

3)angle 6

Answer:

y=-3x+8

Step-by-step explanation:

Answer:

$5.97

Step-by-step explanation:

Multiply 1.99 and 3

Answer:

Step-by-step explanation:

Since it's a right angled triangle we can use trigonometric ratios to find the value of B

To find the value of B we use cosine

That's

cos∅ = adjacent / hypotenuse

From the question

adjacent = 4

hypotenuse = 5

We have

[tex] \cos(B) = \frac{4}{5} \\ B = { \cos }^{ - 1} ( \frac{4}{5}) \\ = 36.869897645...[/tex]

We have the final answer as

Hope this helps you

Answer:

Step-by-step explanation:

20 + 15 = 35 . Now you need to list the factor of 35:    1, 5, 7, 35 pickt the smallest factor.

Given :

One cell phone company offers a plan that costs $26.99 and includes unlimited night and weekend minutes.

Another company offers a plan that costs $18.99 and charges $0.35 per minute during nights and weekends.

To Find :

For what numbers of night and weekend minutes does the second company's plan cost more than the first company's plan.

Solution :

Let, after n number of nights and weekends second plan is most costly.

So,

[tex]18.99+0.35x > 26.99\\\\0.35x > 8\\\\x>22.85[/tex]

Therefore, after 22 night and weekends second plan is  most costly.

Hence, this is the required solution.

Answer:

When x=16 y=36 (16,36)

Step-by-step explanation:

Answer:

36

Step-by-step explanation:

x= 8    16

y= 18   #

8/16=18/#

#= 16*18/8(property of proportions)= 36 :)

Given parameters:

Length of the gift box = 8 inches

Width of the box = 3 inches

Height of the box = 4 inches

Unknown :

Length of its longest diagonal = ?

Solution:

This is a rectangular box.

To find the diagonal of such box, let us use the formula below;

             Diagonal  = [tex]\sqrt{l^{2} + w^{2} + h^{2} }[/tex]

l is the length

w is the width

h is the height

Input the parameters and solve;

           Diagonal  = [tex]\sqrt{8^{2} + 3^{2} + 4^{2} }[/tex]   = 9.4inches

The diagonal of the box is 9.4inches