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nignag [31]
3 years ago
9

The number of Xbox ones sold since 2013 at Bargain Buy electronic store can be modeled by the function N(t) = 5t + 9 and the pri

ce per system can be modeled by P(t) = 2t2- 3t + 6, where t is the number of years since 2013. Write a function that models the revenue generated by the sales of the xbox one gaming system.
R(x) = ____+____+_____+_____
Mathematics
1 answer:
lara [203]3 years ago
7 0

Answer:

R(t)=10t^3+3t^2+3t+54

Step-by-step explanation:

The Number Sold since 2013, N(t) = 5t + 9

Price per system, P(t) = 2t^2- 3t + 6

Revenue = Number of System Sold X Price per system

=N(t)XP(t))

= (5t + 9)(2t^2- 3t + 6)\\$Distribute\\=5t(2t^2- 3t + 6)+ 9(2t^2- 3t + 6)\\=10t^3-15t^2+30t+18t^2-27t+54\\=10t^3-15t^2+18t^2+30t-27t+54\\R(x)=10t^3+3t^2+3t+54

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calculate the volume of each cone. Use 3.14 for π. Round answers to the nearest hundredth if necessary.​
coldgirl [10]

Answer:

2355 cm^2

Step-by-step explanation:

The volume of a cone is given by

V = 1/3 pi r^2 h

V = 1/3 (3.14) (15)^2 (10)

V =2355

8 0
2 years ago
Which of the following is not a possible number of solutions when solving a system of equations containing a quadratic and a lin
Kobotan [32]

Answer:

3

Step-by-step explanation:

We have a system with two equations, one equation is a quadratic function and the other equation is a linear function.

To solve this system we have to clear "y" in both equations, and then equal both equations, then we will have a quadratic function and equal it to zero:

ax^2+bx+c=0, a\neq 0

Then to resolve a quadratic equation we apply Bhaskara's formula:

x_{1}=\frac{-b+\sqrt{b^2-4ac} }{2a}

x_{2}=\frac{-b-\sqrt{b^2-4ac} }{2a}

It usually has two solutions.

But it could happen that \sqrt{b^2-4ac} then the equation doesn't have real solutions.

Or it could happen that there's only one solution, this happen when the linear equation touches the quadratic equation in one point.

And it's not possible to have more than 2 solutions. Then the answer ir 3.

For example:

In the three graphs the pink one is a quadratic function and the green one is a linear function.

In the first graph we can see that the linear function intersects the quadratic function in two points, then there are two solutions.

In the second graph we can see that the linear function intersects the quadratic function in only one point, then there is one solutions.

In the third graph we can see that the linear function doesn't intersect the quadratic function, then there aren't real solutions.

7 0
3 years ago
The ratio of the price of a pair of sneakers to the price of a pair of boots is 15:19. The price of a pair of boots is 570 dolla
Genrish500 [490]

Answer:

$1470

Step-by-step explanation:

sneakers : boots

15 : 19


15        cost sneakers

------ =  -------------------

19          570


using cross products

15 * 570 = 19 * sneakers

8550=19 * sneakers

divide by 19

8550/19 = sneakers

sneakers = 450

total cost = 2* sneakers + boot

total cost = 2 * 450 + 570

total cost = 900 + 570

total cost = 1470


6 0
3 years ago
You construct a budget to determine how much money you will need to start your own catering business. You take your savings of $
tatiyna

Answer:

Compound interest is the best.

Step-by-step explanation:

Simple interest is that which is not added to the initial capital once the term of the investment or credit has expired.

Compound interest is that which is added to the initial capital at the end of the investment or credit.

Simple interest:

I= C x i x t

15,000 * 0.05 * 5 = $ 750

Compound interest:

Cf= Ci (1+i)ᵗ

Cf = 15,000 * (1.039)^5 = $ 18,162.22

So, if Cf - Ci = I -> 3,162.22 is the compound interest.

8 0
3 years ago
The value of -9(square root) is not-3 because
love history [14]

Answer:

A)  (-3)^{2} \neq -9

Step-by-step explanation:

7 0
3 years ago
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