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
11111nata11111 [884]
2 years ago
11

The function f has the property that, for all x, 5(f)x=f(5x). If f(20)=40, what is the value of f(4)?

Mathematics
1 answer:
Romashka-Z-Leto [24]2 years ago
3 0

Using the given property, we conclude that:

f(4) = 8

<h3>What is the value of f(4)?</h3>

We know that our function has the property:

5*f(x) = f(5*x)

Now, we also know that:

f(20) = 40

Notice that we can rewrite:

f(20) = f(5*4)

Using the above property, we know that:

f(20) = f(5*4) = 5*f(4) = 40

Using the last part:

5*f(4) = 40

f(4) = 40/5 = 8

f(4) = 8

If you want to learn more about functions:

brainly.com/question/2328150

#SPJ1

You might be interested in
12x-5y=20 y=x+4<br> 3x+y=3 x=-y+3
Vladimir79 [104]
Standard form (which I assume is what they want you to turn these into) is y=mx+b.

12x-5y=20 is y=2.4x-4.
Subtract 12x from both sides, -5y=-12x+20.
Multiply both sides by -1, 5y=12x-20.
Divide both sides by 5, y=2.4x-4.

y=x+4 is already in standard form- I'm not quite sure what to do.

3x+y=3 is y=-3x+3.
Subtract 3x from both sides, y=-3x+3.

x=-y+3 is y=-x+3
Ad y to both sides, y+x=3.
Subtract x from both sides, y=-x+3.
4 0
3 years ago
A class consists of 55% bots and 45% girls. It is observed that 25% of the class are boys and scored an A on the test, and 35% o
oksian1 [2.3K]

Answer:

0.1575

Step-by-step explanation:

Probability of picking a girl is 0.45 and probability of a girl scoring A is 0.35.

Therefore probability of a girl scoring A is 0.45*0.35=0.1575

8 0
3 years ago
HELP DUE IN 10 MINS! <br><br> The lighthouse is ?? feet above the water.
jasenka [17]

Answer:

<u>Use tangent:</u>

  • BL/BS = tan S
  • x / 144 = tan 25°
  • x = 144 tan 25°
  • x = 67 ft (rounded)

3 0
3 years ago
Use the expressions that represent the length and width of the game board to write an equation that models the area of the figur
Ne4ueva [31]
The picture is incomplete and the width is missing.

I am going to show you how to do it using any width.

The length shown is x + 4 and the width starts with - x.

Assume the width is - x + a.

Then the area of the rectangle with dimensions x + 4 and - x + a is calculated in this way:

1) given: (x + 4) (- x + a)

2) use distribuitive property: (x)(-x) + (x)(a) + (4)(-x) + (4)(a)

= - x^2 +ax -4x + 4a

3) Combine like terms: - x^2 + (a -4)x + 4a

If the polynomial missing were - x + 7, the answer would be:

- x^2 + (7 -4)x + 4(7) = - x^2 + 3x + 28

With this you are able to get the answer using the real values.
3 0
3 years ago
Wharts the differences between a dialation and a reduction in geometry?
Svetach [21]
A dilation is when the figure is enlarged and a reduction is when the figure is reduced, smaller.
The scale factor for dilation is > 1 and reduction >0,<1
6 0
3 years ago
Other questions:
  • A car travels 90 miles in 1.5 hours. at this rate, how many miles can it travel in 4 hours?
    10·1 answer
  • Write the ratio in lowest terms with whole numbers in the numerator and denominator.
    6·1 answer
  • Melissa bought 2 CDs that each costs the same including sales tax, she paid a total of 29.20. Of that total 1.60 of it was tax.
    9·1 answer
  • What is 2/5+5/3+9/3=
    15·1 answer
  • I need a squared number thats NOT even
    15·2 answers
  • What is -10 times 100 to the 10 power
    15·2 answers
  • Ramkin is going to flip a fair coin 1200 times
    5·2 answers
  • Last question of the day! plssssss helpppppp
    6·2 answers
  • The X multiple answers are 60 or 55 or 9 or 27 and
    9·1 answer
  • The terminal side of an angle<br><br> intersects the unit circle at point
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!