x=15 is this a function how do you do it

equivalent ratio of 16:18 is 8:9

Answer:

W = 1.06 MJ

Step-by-step explanation:

- We will use differential calculus to solve this problem.

- Make a differential volume of water in the tank with thickness dx. We see as we traverse up or down the differential volume of water the side length is always constant, hence, its always 8.

- As for the width of the part w we see that it varies as we move up and down the differential element. We will draw a rectangle whose base axis is x and vertical axis is y. we will find the equation of the slant line that comes out to be y = 0.5*x. And the width spans towards both of the sides its going to be 2*y = x.

Equations are used to show the relationship between variables (usually x and y). The true statement about f(x) is that the range of f(x) is [tex]y \ge -8[/tex]

Given that:

[tex]f(x) = 2(x - 2)^2 - 8[/tex]

To identify the true statement, I will make use of graphical method.

See attachment for the graph of [tex]f(x) = 2(x - 2)^2 - 8[/tex]

From the attached graph, we can see that the graph as a minimum at:

[tex](x,y) = (2,-8)[/tex]

And it opens upward.

This implies that the minimum y-value of f(x) is at -8, and it has no maximum.

In other words, the range of the function is:

[tex]f(x) \ge -8[/tex]

Hence, the true statement is option (a):

The range of f(x) is [tex]y \ge -8[/tex]

Read more about equations at:

https://brainly.com/question/17995541

Answer:

Cory bought 6.30 gallons of gas at the gas station.

Step-by-step explanation:

total amount = cost of snacks + amount spent on gas

[tex]$\$ 24.00=\$ 6.50+\$ 2.78 \mathrm{~g}$[/tex]

[tex]$\$ 2.78 \mathrm{~g}=\$ 24.00-\$ 6.50$[/tex]

[tex]$\$ 2.78 \mathrm{~g}=\$ 17.50$[/tex]

[tex]$g=\frac{\$ 17.50}{\$ 2.78}$[/tex]

[tex]$g=6.30$[/tex]

Learn more about gallon refer:

Answer:

XV < XW < WV

Step-by-step explanation:

The side lengths are proportional to angles they see

The side that sees the largest angle has longest measurement and the one that sees smallest angle would be shortest therefore we can order sides from  shortest to longest like this :

XV < XW < WV

Answer:

4 foot ribbon

Step-by-step explanation:

Answer:

544

Step-by-step explanation:

$7.68 x 540 = 4,147.2

a+1 = 3

(a - 1)^2

[tex] {a}^{2} - 2.a.b + {b}^{2} \\ \\ a - 2a + 1 \\ \\ 1 + 1 = 2[/tex]

Answer:

It represents the total amount that Erin is going to spend at the store.

Step-by-step explanation:

I hope it helps. I hope it helps

Answer:

12 unit

I hope it helps

9514 1404 393

Answer:

Step-by-step explanation:

Consider the function and its inverse shown in the second attachment. The function is ...

  f = {(a, 3), (b, 1), (c, 2)}

The inverse function is ...

  f^-1 = {(3, a), (1, b), (2, c)}

You will notice that the "x" and "y" of each pair are swapped between the function and its inverse. That is the point of an inverse function. It gives you the input that caused the function to create the output. For example, the pair (3, a) in the above inverse function tells you that the output 3 was the result of an input of 'a' to the original function.

__

On a graph, the swapping of input and output is essentially equivalent to relabeling the axes. If we keep the same x- and y-axis labels, it is equivalent to reflecting the function graph across the line y=x. That reflection is represented by the transformation (x, y) ⇒ (y, x).

__

The point of the exercise here is for you to identify some ordered pairs of one of the functions and realize that the inverse function reverses their order. You are to see that the graph of the function and its inverse are reflections of each other across the diagonal line y=x.

Step-by-step explanation:

4×2= 9x

8/9=x

Transposition

Answer:

x = 8/9

Step-by-step explanation:

If you like my answer than please mark me brainliest thanks

Step-by-step explanation:

1 & 2 are on the attachment

3 --------------

4)4x+5=17

 5x+5=20

5)2x+15+85+x+20=180

   3x+120              =180-120

                        3x=60

                          x=20 degrees

6)son's age=x

  3x+x=48

   4x=48

    x=12            

Therefore; son's age=12 years old

                  Mr.Robert age=12*3

                                           =36 years old

Hope this helps you

If you have any question just ask me

If you think this is the best answer please mark me as brainiest

Answer:

give brainliest please I need it to level up

Step-by-step explanation:

20 + 8

4(5 + 2)

100 + 75

25(4 + 3)

49 + 28

7(7 + 4)

32 + 24

8(4 + 3)

Answer:

Ans; 8 +20 —> 4(2+5)

Ans; 75+100 —> 25(4+3)

Ans; 28+49 —> 7(4+7)

Ans; 24+32 —> 8(3+4)

I hope I helped you^_^

Answer:

A B C D E MIGHT BE UR ANSWER

Answer:

17

Step-by-step explanation:

If L and M are parallel then the angles will add up to 180 (a straight line), so:

6x+8+4x+2=180

10x+10=180

10x=170

x=17

Step-by-step explanation:

Q9 . y = x + 5

x= y-5

× the input

y the output

x= -3

Q10.

y = 2x -3

y+3 = 2x

x = (y+3) ÷ 2

× = 5/2

= 2.5

Q11.

y = 1/4x - 1

y+1 = 1/4 x

4y+4 = x

x = 12

Q 12 .

y = 2/3x + 4

y-4 = 2/3x

3(y-4) = 2x

x = 3(y-4)/2

x = -3

Time = distance / speed

Time = 304 miles / 40 mph

Time = 7.6 hours ( 7 hours and 36 minutes)

Answer:

[tex] \boxed{x = 7} [/tex]

Step-by-step explanation:

Given:

We can illustrate this relationship as:

(2x + 1)

___↑___

| |

A — B — C

|____|___|

↓ ↓

(x + 4) (2x – 10)

_______________________________

When you are given an algebraic expression for the length of a segment, you can solve for that value by knowing that the sum of two segments AB + BC = AC.

Thus:

(x + 4) + (2x – 10) = (2x + 1)

[Regroup terms]

(x + 2x) + (4 – 10) = (2x + 1)

[Simplify]

(3x – 6) = (2x + 1)

[subtract 2x from both sides to isolate the variable]

(3x – 6) – 2x = (2x + 1) – 2x

[Regroup terms]

(3x – 2x) – 6 = (2x – 2x) + 1

x – 6 = 1

[Add 6 to both sides to isolate the constant]

x – 6 + 6 = 1 + 6

[Simplify]

x = 7

Answer:

As this is a quartic equation, we should expect four roots (although some may end being repeated). Notice also that the equation is symmetrical, which suggests that there might be an element of symmetry in the answer.

First, as this equation is a quadratic in terms of z2 , we can use our formula for finding the roots of a quadratic equation to give the value(s) of z2 . [If you have a problem seeing this, use the substitution y=z2 , and you get a quadratic in y .]

z2=−4±42−4×1×16√2×1=−4±16−64√2

=−4±−48√2=−2±12−−√i=−2±23–√i

=4(−12±3√2)i

=4(cos(2kπ3)+isin(2kπ3)) , where k∈1,2

=4e2kiπ3

As this is the value of z2 , whereas we want z , we need to take the square roots of both sides

z=4–√ekiπ3+nπ , where n∈0,1

=2e(k+3n)iπ3

=2cis((k+3n)iπ3)

As we have two values of k and two values of n , this gives us four solutions.

Writing these angles in terms of degrees, we have: 60, 120, 240 and 300

Evaluating, we end up with the four solutions

z=1±3–√i∪z=−1±3–√i

You can substitute z^2 = x,

Then you get x^2+4x+16=0

Step-by-step explanation:

z=1±3–√i∪z=−1±3–√i

You can substitute z^2 = x,

Then you get x^2+4x+16=0

Then you can use classical x1,2 = (-b +- √[b^2–4ac])/2a

X1,2=(-4+-√[16–16*4])/2

After you solve that you substitute back z^2 = x

Answer:

5 + 8 × 4

Assuming "five and eight" means 5 + 8

Answer:

c no is correct pls mark me branilest

Answer:

(x, y) = (y, x). Exercise 1.3.4. Let X,Y,Z and W be nonempty sets. Then, prove the following statements

If ; | 2x+4|=12 —> x = 4 , x = – 8 —> The choose C.

If ; | 2x | +4=12 —> x =4 , x = – 4 —> The choose D.

I hope I helped you^_^

Answer:

Step-by-step explanation:

Answer: 0.86

Step-by-step explanation:

Answer:

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Answer:

∞

Step-by-step explanation:

since cos(0) = 1, you have 1/0

Answer:

Step-by-step explanation:

Answer:

6. -200+75= -125

7. -40+-17= -57

8. 6+-9= -3+7=4+-5= -1

5+3=8+-6= 2

11+-12= -1+-3= -4+4=0

Correct answer: Cory goes first

Step-by-step explanation:

Answer:

The 1st one for the first pic and I'm not sure but c for the 2nd one

Answer:

a and c

Step-by-step explanation:

Answer:

19e

Step-by-step explanation:

The GCF of 10 and 6 is 2. May this will help you.