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
vovikov84 [41]
3 years ago
14

The equation x2 − 6x − 27 = 0 when solved is:

Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
8 0

Answer:

-3 , 9

Step-by-step explanation:

Sum = - 6

Product = -27

Factors = 3, -9

x² - 6x-27 = 0

x² + 3x - 9x - 9*3 = 0

x(x + 3) - 9(x + 3)  = 0

(x + 3) (x - 9) = 0

x +3 = 0   ; x - 9 = 0

x = - 3     ; x = 9

Solution: x = -3 , 9

You might be interested in
Given the function h(x) =1/3 |x-6| +4, evaluate the function when x = - 3, - 2, and 0
Masja [62]

|x| = x for x ≥ 0

examples:

|3| = 3; |0.56| = 0.56; |102| = 102

|x| = -x for x < 0

examples:

|-3| = -(-3) = 3; |-0.56| = -(-0.56) = 0.56; |-102| = 102

--------------------------------------------------------------------------------

Use PEMDAS:

P Parentheses first

E Exponents (ie Powers and Square Roots, etc.)

MD Multiplication and Division (left-to-right)

AS Addition and Subtraction (left-to-right)

--------------------------------------------------------------------------------

h(x)=\dfrac{1}{3}|x-6|+4

Put the values of x to the equation of the function h(x):

x=-3\to h(-3)=\dfrac{1}{3}|-3-6|+4=\dfrac{1}{3}|-9|+4=\dfrac{1}{3}(9)+4=3+4=7\\\\x=-2\to h(-2)=\dfrac{1}{3}|-2-6|+4=\dfrac{1}{3}|-8|+4=\dfrac{1}{3}(8)+4=\dfrac{8}{3}+\dfrac{12}{3}=\dfrac{20}{3}\\\\x=0\to h(0)=\dfrac{1}{3}|0-6|+4=\dfrac{1}{3}|-6|+4=\dfrac{1}{3}(6)+4=2+4=6


6 0
2 years ago
A customer is late paying their renewal registration fee. The renewal registration fee is $142.16 and the late fee is 63% of the
Andre45 [30]
$124.56 because if you have 63% you change it to a decimal so it is not .63 and you multiply it by 146.16 and then add the 35 you get 124.56
8 0
3 years ago
The smallest bone on the body, the stirrup-shaped stapes found in the middle ear, has a typical length of less than 0.33 cm. how
4vir4ik [10]

Answer:

0.13 inches.

Step-by-step explanation:

1 inch = 2.54 cm

So 1 cm = 1/ 2.54 in

0.33 cm = 0.33/2.54 in

= 0.13 inches.

5 0
1 year ago
1/2 cubed? Please help...
Fudgin [204]
1/2 cubed= 1/2 times 1/2 times 1/2
1/2 time 1/2 = 1/4
1/4 times 1/2 = 1/8

A: 1/2 cubed equals 1/8
6 0
3 years ago
How to tell if two ratios are the same
Vanyuwa [196]
To see if they are the same number
8 0
2 years ago
Other questions:
  • What’s the correct answer for this question?
    5·1 answer
  • Anyone ...Pls solve
    13·1 answer
  • Determine the general solution: sin 2x=-1/2
    13·1 answer
  • Find the area of the shape shown below
    10·1 answer
  • The drama club has sold 942 tickets to their play if their theater seats 57 in each row how many full rows were there be how man
    12·1 answer
  • GIVING BRAINLIEST what is 97 - 56 + 12
    12·2 answers
  • Need help ASAP. Last two problems on my study guide, can't seem to solve them?
    11·1 answer
  • How would you use proportional relationships in real life situations? <br> Provide an example.
    6·1 answer
  • Which of the following is the solution to the equation
    6·1 answer
  • Twenty six thousandths in numerical form
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!