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
sp2606 [1]
2 years ago
6

If f(x)= x2 - 4x - 4, find the input values that make the function 0.

Mathematics
1 answer:
olchik [2.2K]2 years ago
6 0

Step-by-step explanation:

f(x) = x² - 4x - 4

the general formula for solving such a quadratic equation (for f(x) = 0) is

x = (-b ± sqrt(b² - 4ac))/(2a)

in our case

a = 1

b = -4

c = -4

x = (4 ± sqrt(4² - 4×1×-4))/(2×1) = (4 ± sqrt(16 + 16))/2 =

= (4 ± sqrt(2×16))/2 = (4 ± 4×sqrt(2))/2 = 2 ± 2×sqrt(2)

x1 = 2 + 2×sqrt(2)

x2 = 2 - 2×sqrt(2)

You might be interested in
now find the components nx and ny of n⃗ in the tilted coordinate system of part b. express your answer in terms of the length of
saw5 [17]

The components are Nx= Ncosθ  and Ny= -Nsinθ

<h3>What is a Vector?</h3>

We know that the vector quantities are those quantities that have magnitude as well as direction.

Each vector quantity can be divided into two parts a horizontal and vertical component, the vertical component is known as the sine component while the horizontal component is known as the cosine component.

A vector component is the product of its length and the component angle.

Generally, F sinθ is the vertical component and F cosθ is the horizontal component,

Now, from the diagram the horizontal component of vector 'r' is

Nx= Ncosθ

and, the vertical component will be

Ny= -Nsinθ

this is in the opposite direction

Learn more about vectors here:

brainly.com/question/1600633

#SPJ4

7 0
1 year ago
50 points answer asap!!!!!!!!!!!!!!!!!!!!!!!!!!!!
vovikov84 [41]

Answer:

2,568.39ft2

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
18<br> 8<br> 12<br> What is the value of x?<br> A. 2V29<br> B. 3761<br> C.2V101<br> D. 2 133
Sati [7]
It is c since that is the answer
5 0
3 years ago
K=1/2mv^2 solve v answer <br><br><br><br><br> V=兀r^2h solve r answer
Alex17521 [72]
Ok so you first you move the 2h to the top and and 兀r is multiplied by ten of course and then you get the answer <span>兀r 34029h</span>
8 0
3 years ago
1. Gwen deposits $7,000 in a savings account with an annual interest rate of 2.5%. What function
xeze [42]

Answer:

Results are below.

Step-by-step explanation:

Giving the following information:

Initial investment (PV)= $7,000

Interest rate (i)= 2.5%

<u>To calculate the future value after x years, we need to use the following formula:</u>

FV= PV*(1 + i)^x

<u>Now, for 9 years:</u>

x= 9

FV= 7,000*(1.025^9)

FV=$8,742.04

8 0
2 years ago
Other questions:
  • Danny's Bike Shop sells a certain model of racing bike for $550. The same bike can be bought at a competing shop for 7 percent l
    15·1 answer
  • Six less than three times a number. write an algebraic expression to represent the given phrase
    11·1 answer
  • Debbie is making an abstract painting with two triangles. The dimensions of the painting are shown below: 6x8 and 10x8 The total
    7·1 answer
  • A line of best fit is f(x) ≈ −0.86x + 13.5 for the set of points in the table
    8·1 answer
  • Ryan boards an elevator in the lobby that is headed up at 290 meters per minute. Meanwhile, 260 meters above, Connor boards an a
    6·1 answer
  • What is the area of the figure below in square centimeters?
    15·1 answer
  • How many inches are in a hundred and forty seven miles?
    9·2 answers
  • Which equation is not a linear function?
    12·2 answers
  • What is the true solution to 2 In ein 5x = 2 In 15
    7·1 answer
  • 4/7+3/7 1/5.3/2-4/10
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!