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mafiozo [28]
4 years ago
12

A store was selling movies that originally cost $19.95 with a $5 discount.

Mathematics
1 answer:
Helen [10]4 years ago
8 0
Mia bought 5 movies , & the total was $74.95
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Identify a function rule for the following ordered pairs:
Andreas93 [3]
2x-4 D it can be your answer if you multiply correctly and you do it
5 0
3 years ago
John has less than 15 video games what is the inequality?
lidiya [134]

Answer: well, we don't have another number so i'll use variables

VG < 15

An easy way to remember what is the lesser value is to think of an alligator; the alligator wants to eat the bigger prey so in your case the bigger prey would be 15.

6 0
4 years ago
Graph the inequality B is greater than -3​
nikdorinn [45]
The graph would be a shaded line all inclusive after -3
4 0
3 years ago
Find​ f(x) and​ g(x) such that ​h(x)equals​(fcircle​g)(x). h left parenthesis x right parenthesis equals left parenthesis 2 x pl
GaryK [48]

Answer:

  • f(x) = x^3
  • g(x) = (2x+4)^2

Step-by-step explanation:

There are many ways to decompose h(x) into f(x) and g(x). The main purpose of the exercise seems to be to get you to think about the operations that are performed on x, then divide that list of operations into two parts.

In the function ...

  h(x) = (2x +4)^6

the variable x is ...

  • multiplied by 2
  • 4 is added to the sum
  • the sum is raised to the 6th power

Of course, the 6th power can be considered as the cube of a square or the square of a cube, if you like.

In the decomposition shown in the answer above, we have chosen to put most of this list in g(x), including the square of the sum. Then we have made f(x) be the cube of that square.

  h(x) = f(g(x)) = (2x+4)^6

When f(x) = x^3, this is ...

  h(x) = f(g(x)) = g(x)^3 = ((2x+4)^2)^3

so ...

  g(x) = (2x+4)^2 . . . and . . . f(x) = x^3

_____

Other possible decompositions are ...

  • g(x) = 2x
  • f(x) = (x+4)^6

or

  • g(x) = (x+2)
  • f(x) = (2x)^6

or

  • g(x) = 2x+4
  • f(x) = x^6

or ... (many others)

6 0
3 years ago
Find an equation of the tangent line to the curve y=9tanx at the point (π/4, 9)
maria [59]

The tangent line to y(x) at x=\dfrac\pi4 has slope y'\left(\dfrac\pi4\right), so first we compute the derivative:

y'(x)=9\sec^2x

and evaluate it at the point of interest to find the slope:

y'\left(\dfrac\pi4\right)=9\sec^2\dfrac\pi4=18

Then the equation of the tangent line is

y-9=18\left(x-\dfrac\pi4\right)\implies y=18x+9-\dfrac{9\pi}2

6 0
4 years ago
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