All categories

3 years ago

I will give brainliest

Mathematics

2 answers:

ollegr [7]3 years ago

7 0

the correct answer would be D 851.50

Fynjy0 [20]3 years ago

4 0

The option A and B would be wrong since it was less than the minimum value of the function. To find the cost, you just need to replace the x variable with time after 2005.
If the time is 2025 it will be
x= 2025-2005= 20

y = 15.7x + 459
y = 15.7(20) + 459
y = 314+ 459 = $773.00

If the time is 2030 it will be
x= 2030-2005= 25

y = 15.7x + 459
y = 15.7(25) + 459
y = 392.5+ 459 =$851.50

You might be interested in

Solve for X. show your work. (x+2)(x+8)=0

valentinak56 [21]

Step-by-step explanation:

x = -2

x = -8

please follow me

3 0

2 years ago

the population of alaska is approximately 6.5 * 10^(5) people the populatio of illinois's is about 1.3 * 10^(7)people. how many

Wewaii [24]

Answer:

20 times greater

Step-by-step explanation:

Given the following

Population of alaska = 6.5 * 10^(5) people

Population of illinois's = 1.3 * 10^(7)people.

To know the number of times population of Illinois in the population of Alaska, we will take their population ratio;

Ratio = Population of illinois's /Population of alaska

Ratio = 1.3 * 10^(7)/6.5 * 10^(5)

Ratio = 0.2 * 10^7-5

Ratio = 0.2 * 10^2

Ratio = 20

Hence the population of Illinois is 20 times greater than population of alaska

8 0

2 years ago

How do u turn y +2=-3(x-1) Into standard form

Darina [25.2K]

Answer:

Step-by-step explanation:

$y+2=-3(x-1)\\\\\text{It's a point-slope form of an equation of a line}.\\\\\text{The standard form is:}\ Ax+By=C.\\\\\text{Convert:}\\\\y+2=-3(x-1)\qquad\text{use the distributive property}:\ a(b+c)=ab+ac\\\\y+2=(-3)(x)+(-3)(-1)\\\\y+2=-3x+3\qquad\text{subtract 2 from both sides}\\\\y+2-2=-3x+3-2\\\\y=-3x+1\qquad\text{add}\ 3x\ \text{to both sides}\\\\y+3x=-3x+3x+1\\\\3x+y=1$

6 0

2 years ago

Read 2 more answers

I’m so confused help please

lozanna [386]

Answer:

B. 0

Step-by-step explanation:

If you subtract the right side expression and simplify, you get ...

4/5(20x +5) -(16x -2) = 0

16x +4 -16x +2 = 0

6 = 0 . . . . . . . . . . . . false

There is no value of x that will make this true. There are no solutions.

5 0

2 years ago

Will Mark Brainliest

Mademuasel [1]

we are given with the data of a parabola with vertex at (2, 2) and directrix at y = 2.5. the formua should be ax^2 + b x + c = y because of the directrix.

(x-h)^2 = 4a (y-k)

(x-2)^2 =4a (y-2)

a is the equidistant distance from focus to vertex and from vertex to directrix that is equal to -0.5

then the answer is

(x-2)^2 =-0.5*4 (y-2)

x2 - 4x + 4 = -2y +4

x2-4x+2y = 0

answer is C

4 0

2 years ago