Can someone help me with math?Come up with and describe two scenarios: one that models a direct variation situation and one that models an inverse variation situation. Do not state explicitly which scenario is which, but provide at least four data pairs for each situation. Your classmates will have to determine which of the scenarios is a direct variation and which is an inverse variation, and the value of k for each.

Answers

Answer 1

Answer: An example of a direct variation scenario is the increase in the income of a start-up bakeshop when the number of cakes sold increase. Example data are (4, $ 100), (5, $ 125), (6, $ 150), and (7, $ 175).

The example of indirect variation scenario is the decrease in time it takes to reach a destination when the speed of the mobile increases. This is shown in the data points: (10 kph, 10 mins), (12 kph, 8 mins), (14 kph, 6 mins), and (16 kph, 4 mins).

Answer 2

Answer:

Direct

The amount of items you buy at a 1dollar store and the bill

More items—-> more dollars to pay

Time and toms savings if his mother gives him every day a dollar to put in his saving’s can.

More days—->more dollars

Costumers of a restaurant and times it’s tv commercial it’s on air

More views —> more costumers

Inverse

Money Bob spends during a month and amount of money in his bank account

More spending—-> less money

Time and days left to finish school

One day passes—-> one day left less

Miles of journey and gas left in the car

One more mile traveled—-> more gas spent—> les gas in the car

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Find the domain of f(x)= sqrt2-9x
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2 wires help support a tall pole. 1 wire forms an angle of 48 degrees with the ground and the other wire forms an angle of 72 degrees with the ground The wires are 20 meters apart. How tall is the pole?

Solve for x in terms of a,b, and c: ax - 3b =c. . 1: a(c+3b). 2: a (c-3b). 3: c-3/a. 4: c+3b/a

Answers

We have to solve x in terms of a, b and c:
a x - 3 b = c
a x - 3 b + 3 b = c + 3 b
a x = c + 3 b
x = ( c + 3 b ) : a
Answer:
4 ) ( c + 3 b ) /a

What is the proportion and answer?!!!

Answers

The proportion is 6 parts tomato: 2 parts bell pepper

To solve:

6 x
-- = --
2 1.5

Cross multiply and divide

6(1.5)=2x
9=2x
9/2=2x/2
4.5=x

The answer is 4.5

I hope I helped! :)

Which shows 60^2 − 40^2 being evaluated using the difference of squares method?(A)60^2-40^2=(3600+1600)(3600-1600)=10,400,000
(B)6^2-40^2=3600-1600=2,000
(C)60^2-40^2=(60-40)^2=20^2=400
(D)60^2-40^2=(60+40)(60-40)=(100)(20)=2,000

Answers

Answer:

Option D - $60^2-40^2=(60+40)(60-40)=(100)(20)=2000$

Step-by-step explanation:

Given : Expression $60^2-40^2$

To find : Which shows expression being evaluated using the difference of squares method?

Solution :

The best method to find the difference of squares method is by using identity,

$a^2-b^2=(a+b)(a-b)$

According to question,

a=60 and b=40

$60^2-40^2=(60+40)(60-40)$

$60^2-40^2=(100)(20)$

$60^2-40^2=2000$

Therefore, Option D is correct.

D. The answer has to be 2,000, eliminating A and C. B doesn't even use the original equation, as well as incorrectly solving the method, so D is the correct answer, even if you don't understand the principles.

HELP? NEED HELP WITH SECOND ONE!!!

Answers

I think it is rational I’m sorry this is wrong.

Which expression is equivalent to -14-(-2)?
14-2
O 14+2
0 -14+2
14-2

Answers

Answer:

-14 +2

Step-by-step explanation:

because you would do kcc aka keep change change

you would keep -14 change the minus to a addition sign and change the -2 to a positive 2

Solve for x and then find the measure of angle, A.

Answers

X= 25 because you set both equations equal to each other so 6x - 2 = 4x + 48 then to find the measure of the angle you plug in the value of X. So angle A = 6(25) -2 = 148

Answer:

x = 25 ; m∠A = 148°

Step-by-step explanation:

∠A ≅ ∠B (alternate exterior angles)

(6x - 2)° = (4x + 48)°

2x = 50

x = 25

m∠A = 6(25) - 2 = 148°

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Which model represents the sum given above