1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lyrx [107]
2 years ago
14

Evaluate the function f\left(x\right)=5x+2\mid11-5x\mid-4f(x)=5x+2∣11−5x∣−4 for x = -5.

Mathematics
1 answer:
Anestetic [448]2 years ago
7 0

Answer:

f\left(5\right) = 43

Step-by-step explanation:

Given

f\left(x\right)=5x+2\mid11-5x\mid-4

Required

Solve for x = -5

This implies that we substitute -5 for x in f\left(x\right)=5x+2\mid11-5x\mid-4

f\left(5\right)=5(-5)+2\mid11-5(-5)\mid-4

Open all brackets

f\left(5\right) = -25+2\mid11+25\mid-4

f\left(5\right) = -25+2\mid36\mid-4

Absolute value of 36 is 36; Wo, we have:

f\left(5\right) = -25+2*36-4

f\left(5\right) = -25+72-4

f\left(5\right) = 43

You might be interested in
Show all work. <br><br>PLEASE HELP!!!!
34kurt
(a) Using the table, give the values fo rthe inverse


1) original table of values:


x      1     2     3    4    5

f(x)   0     1     1    5    3


2) The inverse of the function is obtained by exchanging x and f(x), this is:


                   ( x, f(x) ) → ( f(x), x)


3) So, the table of values of the inverse of the given function is:


x          0    1     1      5     3

f⁻¹ (x)   0     1     2     3     4


(b) Is the inverse a function?


No, the inverse is not a function, since the table of the inverse shows that the x -value 1 has two different images.


This ambigüity is opposite to the definition of a function, which requires that any input value has only one output. For that reason, the inverse is not a function. You cannot tell whether the image of 1 is 1 or 2, because both are images of the same value.
7 0
3 years ago
Now there is a door whose height is more than its width by 6 chi 8 cun. The distance between the [opposite] corners is 1 zhang.
Kaylis [27]

Answer:

  • height: 9 chi 6 cun
  • width: 2 chi 8 cun

Step-by-step explanation:

The factor-of-ten relationship between the different units means we can combine the numbers in decimal fashion. If 1 unit is 1 zhang, then 1 chi is 0.1 zhang and 1 cun is 0.01 zhang. Hence 6 chi 8 cun is 0.68 zhang.

Let x and y represent the width and height, respectively. In terms of zhang, we have ...

  y - x = 0.68

  x^2 +y^2 = 1^2

Substituting y = 0.68 +x into the second equation gives ...

  x^2 + (x +0.68)^2 = 1

  2x^2 +1.36x - 0.5376 = 0 . . . . . eliminate parentheses, subtract 1

Using the quadratic formula, we have ...

  x = (-1.36 ±√(1.36^2 -4(2)(-0.5376)))/(2·2) = (-1.36 ±√6.1504)/4

  x = 0.28 . . . . . the negative root is of no interest

  y = 0.28 +0.68 = 0.96

In units of chi and cun, the dimensions are ...

  height: 9 chi 6 cun

  width: 2 chi 8 cun

6 0
3 years ago
Read 2 more answers
Write the number that is 10,000 greater than 563262
Fed [463]
573,262. Greater than means addition.
3 0
3 years ago
Olga collected 13 seashells and Katrin collected 4 shells. How many total shells did Olga and Katrin collect all together?​
Gelneren [198K]

Answer:

17 seashells

Step-by-step explanation:

13+4=17

I hope this works :)

3 0
2 years ago
Read 2 more answers
Help Pre-Calc
Anna11 [10]

Answer:

Average rate of change = 2

Step-by-step explanation:

We need to find the average rate of change of f(x) over the interval [-4,-1], so first we need to find the end points at x=-4 and x=-1.

From graph we see that y=-3 when x=-4, So the point is (-4,-3)

From graph we see that y=3 when x=-1, So the point is (-1,3)

Now we can plug these points into average rate of change formula:

Average\ rate=\frac{f\left(b\right)-f\left(a\right)}{b-a}

where (a,f(a)) and (b,f(b)) are the given points.

Average\ rate=\frac{-3-3}{-4-\left(-1\right)}

Average\ rate=\frac{-3-3}{-4+1}

Average\ rate=\frac{-6}{-3}

Average\ rate=2

Hence final answer is 2.

8 0
3 years ago
Other questions:
  • Edward is playing a game where he draws cards with integers on them from a deck of cards. If the integer is positive he moves fo
    15·1 answer
  • What can you tell about the rate of the two reactions shown in the graph? A. They occurred at the same rate. B. One reaction sta
    15·1 answer
  • What are chemical bands​
    11·1 answer
  • How many secare in 35 min?
    10·1 answer
  • What is 0.25 divided by 1.5
    7·2 answers
  • Which of the following describes the transformation from Figure 1 to Figure 2?​
    9·1 answer
  • Janet wants to plant a square flower garden in her yard. She has enough topsoil to cover an area of 30 square feet. How long can
    10·1 answer
  • Write an equivalent expression in standard form by
    8·1 answer
  • Identify the slope and y-intercept of the following equation:<br> 3x - 2y = -10
    6·1 answer
  • angle EFG and angle GFH are a linear pair, angle EFG=2n + 25 and angle GFH=4n + 17 what are angles EFG and GFH?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!