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
gladu [14]
3 years ago
7

Think about the expression (x-8)(x+4)

Mathematics
1 answer:
Softa [21]3 years ago
4 0

Answer:

x*x +4*x-8*x -8*4

x^2+4x-8x-32

x^2-4x-32

You might be interested in
Find the midpoint and distance between each pair of points, with easy explanation and work !! will give brainliest.
rewona [7]
If we have 2 coordinates say: (x1,y1) and (x2,y2)

Then the formula for the midpoint is:

((x1+x2)/2,(y1+y2)/2)

And the formula for the distance is:

Sqrt((x2-x1)^2+(y2-y1)^2)

So here we have (-1,-4) and (-7,4)

The midpoint is:

((-1+-7)/2,(-4+4)/2) = (-8/2,0/2) = (-4,0)

The distance is:

Sqrt((-7- -1)^2+(4- -4)^2)
= sqrt((-6^2)+(8^2))
=sqrt(36+64)
=sqrt(100)
=10
6 0
3 years ago
If the first three Fibonacci numbers are given as <img src="https://tex.z-dn.net/?f=x_%7B1%7D%20%3D1" id="TexFormula1" title="x_
vazorg [7]

Answer:

n = 8

Step-by-step explanation:

Continuing the sequence using

x_{n} + x_{n+1}

x₄ = x₂ + x₃ =1 + 2 = 3

x₅ = x₃ + x₄ = 2 + 3 = 5

x₆ = x₄ + x₅ = 3 + 5 = 8

x₇ = x₅ + x₆ = 5 + 8 = 13

x₈ = x₆ + x₇ = 8 + 13 = 21

x₉ = x₇ + x₈ = 13 + 21 = 34

x₁₀ = x₈ + x₉ = 21 + 34 = 55 ← with n = 8

6 0
2 years ago
Read 2 more answers
Plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
statuscvo [17]

9514 1404 393

Answer:

  (a)  x = (3 -ln(3))/5 ≈ 0.819722457734

  (b)  y = 10

Step-by-step explanation:

(a) Taking the natural log of both sides, we have ...

  2x +1 = ln(3) +4 -3x

  5x = ln(3) +3 . . . . . . . . add 3x-1

  x = (ln(3) +3)/5 ≈ 0.820

__

(b) Assuming "lg" means "log", the logarithm to base 10, we have ...

  log(y -6) +log(y +15) = 2

  (y -6)(y +15) = 100 . . . . . . . taking antilogs

  y^2 -9x -190 = 0 . . . . . . . . eliminate parentheses, subtract 100

  (y -19)(y +10) = 0 . . . . . . . . factor

The values of y that make these factors zero are -19 and 10. We know from the first term that (y-6) > 0, so y > 6. That means y = -19 is an extraneous solution.

The solution is ...

  y = 10

__

When solving equations using a graphing calculator, it often works well to define a function f(x) such that the solution is f(x) = 0, the x-intercept(s). That form is easily obtained by subtracting the right side of the equation from both sides of the equation. In part (a) here, that is ...

  f(x) = e^(2x+1) -3e^(4-3x)

8 0
3 years ago
Read 2 more answers
What do you add to 4 1/8 to make it 6
svp [43]

Answer:

1 7/8

Step-by-step explanation:

6 - 4 1/8

2 - 1/8

15/8 = 1 7/8

8 0
3 years ago
Read 2 more answers
Anyone know the answer?
yan [13]

Answer:

0.

Step-by-step explanation:

The angle whose sine is 5/12 = 22.62 degrees and in Quadrant II it is

180 - 22.62 degrees

The angle whose tan is (5/12)  = 22.62.

So we can write  α as 180 - α  and β as α.

sin (α+β) = sin ( 180 - α = α) = sin 180

= 0.

7 0
3 years ago
Other questions:
  • Find the limit. lim θ→0 cos(8θ) − 1 / sin(3θ)
    13·1 answer
  • it is currently 0 degrees outside, and the temperature is dropping 4 degrees every hour. The temperature after h hours is -4h. e
    15·1 answer
  • A horizontal line passes through (5,-2). Which other point is also on that line?
    15·1 answer
  • A recipe for trail mix uses 7 ounces of almonds with 5 ounces of raisins. How many ounces of almonds would be in a one pound bag
    10·2 answers
  • Name three points that are collinear. Assume angle TSR is not a straight angle.
    11·1 answer
  • Ifm=2 2/3, what is the value of 5(m+2)?
    5·2 answers
  • Simplest form 3/53/56 ​
    10·2 answers
  • Two rectangles are shown below. Rectangle P has a perimeter of 20 inches.
    13·1 answer
  • PLEASE HELP ME!!! ITS DUE TODAY!!!!!!! the file is down below!!!!!
    13·2 answers
  • Is X-1 a factor of x^5-1?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!