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
Aleonysh [2.5K]
4 years ago
12

Thomas solved the equation by completing the square. x2−10x+27=0 show work

Mathematics
2 answers:
lisabon 2012 [21]4 years ago
5 0

Answer:

Values of x will be [5 + √(-2)] and [5 - √(-2)]

Step-by-step explanation:

Thomas soled the equation (x² - 10x + 27) = 0 by completing the square.

x² - 2(5x) + 27 = 0

x² - 2(5x) + 25 - 25 + 27 = 0

(x - 5)² - 25 + 27 = 0

(x - 5)² + 2 = 0

(x - 5)² = - 2

(x - 5) = ±√(-2)

x = 5 ±√(-2)

Therefore, values of x will be [5 + √(-2)] and [5 - √(-2)].

Ber [7]4 years ago
4 0
(x-3)(x-7)=0
x=3,7
hope this helps!
You might be interested in
Can you help me pls ?
Leno4ka [110]

Answer:

More than 1/2.

Step-by-step explanation:

1/2 in decimal form is 0.5, and since 0.7 is greater than 0.5, that means it is greater than 1/2.

7 0
3 years ago
Read 2 more answers
Hey! i’ll give brainliest please help
Elan Coil [88]

Answer:

I would assume it to be the second option, or B.

'The bogs the moose lived in became so soggy that only moose with the largest feet could successfully walk on the bog'

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Show that cos2x=cosx
PSYCHO15rus [73]

cos (2x) = cos x

2 cos^2 x -1 = cos x   using the double angle formula

2 cos ^2 x -cos x -1 =0

factor

(2 cos x+1) ( cos x -1) = 0

using the zero product property

2 cos x+1 =0    cos x -1 =0

2 cos x = -1       cos x =1

cos x = -1/2       cos x=1

taking the arccos of each side

arccos cos x = arccos (-1/2)         arccos cos x = arccos 1

x = 120 degrees   x=-120   degrees           x=0

remember you get 2 values ( 2nd and 3rd quadrant)

these are the principal values

now we need to add 360

x = 120+ 360n      x=-120+ 360n      x = 0 + 360n  where n is an integer


3 0
4 years ago
What is the value of X plz help
Tema [17]

Answer:

x = 16

Step-by-step explanation:

(5x + 12)° + (6x - 8)° = 180°

(5x + 12 + 6x - 8)° = 180°

(11x + 4)° = 180°

11x + 4 = 180

11x = 180- 4

11x = 176

x = 176/11

x = 16

5 0
3 years ago
The distance on a map between the entrance of the park in waterfall inside the park is 4 1/2 inches if 3 inches is 2 1/2 miles w
aleksandrvk [35]
5 3/4 divided by 4 1/2       23/4 divided by 9/2     23/4 times 2/9      46/36 = 1 and 10/36  (reduced) = 1 and 5/18 inches

5 0
4 years ago
Other questions:
  • Out of a total of 300 animal in a zoo 45 are bird's what percent of the animal in the zoo are bird's
    7·1 answer
  • What is the range of possible sizes for sides x<br> 3.2 and 5.5
    10·1 answer
  • 73 cubed root lies between which two integers
    9·2 answers
  • Please help!! Which two equations are the equations of vertical asymptotes of the function y = 5∕3 tan(3∕4x)?
    7·2 answers
  • What is the Product of 2+√-121 And 3+√-64? Must be written as a complex number in standard form.​
    5·1 answer
  • The relationship between degrees Fahrenheit (F) and degrees Celcius (C) is given by the formula straight F space equals space 9
    8·1 answer
  • You have $40 in your wallet, but you do not want to spend all of it. You want to have at least some money left. You find a shirt
    10·2 answers
  • What do I do I don’t know the answer
    7·1 answer
  • Pablo necesita 7/8 de litro de leche para preparar una bebida. La jarra que usa tiene graduadas las medidas de 1 1/2 litros y 3/
    12·1 answer
  • 3.25x+(-0.4y)+1/2 + 1/5y
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!