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
bija089 [108]
3 years ago
12

Find the value of x. X + 11 X-1 B 8 10 E x=

Mathematics
1 answer:
Luden [163]3 years ago
6 0

9514 1404 393

Answer:

  x = 7

Step-by-step explanation:

The product of secant lengths to the two intersection points is the same for both secants.

  (AD)(AE) = (AB)(AC)

  8(8+10) = (x-1)(x-1 +x+11)

  144 = 2x^2 +8x -10

  x^2 +4x -77 = 0

  (x +11)(x -7) = 0

Solutions to this quadratic are x = -11, x = 7. (These values make the factors zero.) Only the positive solution is useful here

  x = 7

You might be interested in
Find 11 expressions using only fives, that equal either 0,1,2,3,4,5,6,7,8,9,10
Bad White [126]

Answer and Step-by-step explanation:

*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^

5 + 5

5

5/5

5/5 + 5

5/5 + 5/5

5/5 + 5/5 + 5/5

5/5 + 5/5 + 5/5 + 5/5

5 + 5/5 + 5/5

5 + 5/5 + 5/5 + 5/5

5 + 5/5 + 5/5 + 5/5 + 5/5

5 - 5

*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^

#teamtrees #WAP (Water And Plant)

7 0
3 years ago
Evaluate f(x)=4|x|+3 for x=-5
ratelena [41]
Subs x = -5 into f(x) = 4

f(-5) = 4 (answer)
4 0
2 years ago
Line segment AC where point B is located between A and C solve if AB=39 and AC=46 find BC
jeka94

Answer:

BC = 7

Step-by-step explanation:

AB + BC = AC

39 + BC = 46

       BC = 46 - 39

       BC = 7

6 0
3 years ago
Write the expression 12 x 4^2 in words
lawyer [7]

Answer and Step-by-step explanation:

Twelve times four squared.

This is how you would write the expression in word format.

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

7 0
3 years ago
A small company that manufactures snowboards uses the relation below to model its profit. In the model,
amm1812

Answer:

a)   x₁ = 14

     x₂ = - 6

b) x = 4

c) P(max ) = 4000000 $

Step-by-step explanation:

To find the axis of symmetry we solve the equation

a) -4x² + 32x + 336 = 0

4x²  - 32x  - 336  = 0       or    x² - 8x - 84 = 0

x₁,₂ = [ -b ± √b² -4ac ]/2a

x₁,₂ = [ 8  ±√(64) + 336 ]/2

x₁,₂ = [ 8  ± √400 ]/2

x₁,₂ =( 8 ± 20 )/2

x₁  = 14

x₂ = -6

a) Axis of symmetry must go through the middle point between the roots

x = 4 is the axis of symmetry

c) P = -4x² + 32x + 336

Taking derivatives on both sides of the equation we get

P´(x) = - 8x + 32  ⇒  P´(x) = 0     - 8x + 32

x = 32/8

x = 4    Company has to sell  4 ( 4000 snowboard)

to get  a profit :

P = - 4*(4)² + 32*(4) + 336

P(max) = -64  + 128 + 336

P(max) = 400           or  400* 10000 =  4000000

     

8 0
3 years ago
Other questions:
  • The power 3^-3 equals 1/27 . Which expression is equivalent to 3^-3?
    6·1 answer
  • a model railroad kit contains curved tracks and straight tracks . Given that 35 % of the tracks are curved , what fraction of th
    12·1 answer
  • If AD = 2/3 AB , what is the ratio of the length of arc BC to the length of arc DE
    5·2 answers
  • Sandrena and her freinds bought frozen yogurt for 55 cents per onuce. Thier todal was $10.4 5. How many ounces did they buy
    10·1 answer
  • What is the resulting polynomial when 3x+7 is multiplied by 2x-6
    15·1 answer
  • How do you do this and what is it called
    10·1 answer
  • Need 3 and 4 for those who are up to the task
    9·1 answer
  • PLEASE HELP!! The first person to answer correctly will get a great amount of points, and, brainlyest. I looked at it but don't
    13·1 answer
  • Drag expressions to show the steps to create an equivalent expression using only positive exponents. Let g and h be two nonzero
    6·1 answer
  • ?? math-domain and range
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!