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
Vitek1552 [10]
2 years ago
5

Find the quadratic equation given that the roots are 3 and 9​

Mathematics
1 answer:
il63 [147K]2 years ago
4 0

Answer:

\bold\purple{Quadratic \:  \: eq {}^{n} = x {}^{2}  - ( \alpha  +  \beta )x +  \alpha  \beta} \\

Sum of roots ,

( \alpha  +  \beta ) = (3 + 9) = 12

Product of roots ,

( \alpha  \beta ) = (3)(9) = 27

Substituting the values in the above equation ,

\bold{x {}^{2}  - ( \alpha  +  \beta )x +  \alpha  \beta}  \\\\ \bold{⇢ x {}^{2}  - (12)x + 27} \\\\ \bold\blue{ ⇢x {}^{2}  - 12x + 27}

hope helpful~

You might be interested in
Factor, then solve for "x"
bekas [8.4K]
X^2+5x+6=0
(x+3)(x+2)=0
x-3, x-2
8 0
3 years ago
Caleb is preheating his oven before using it to bake. The initial temperature of the oven is 70° and the temperature will increa
gavmur [86]

Answer:

190 Degrees Celsius

Step-by-step explanation:

so first you multiply the

Rate per minute X Minutes

15 X 8 = 120

120 this is the  temperature increase so you add this increase to the initial temperature which was 70 degrees Celsius

temperature Increase + Initial temperature

120 + 70 = 190 degrees Celsius

 

6 0
2 years ago
Rewrite 4/7 and 3/5 so they have common denominator
Vladimir [108]
20/35 and 21/35. The common denominator is 35.
6 0
3 years ago
A coffee stand sells cups of coffee for $6 and cups of tea for $3. Tuesday a total of 75 cups were sold and the total money coll
Lorico [155]

Answer:

46 Teas and 29 Coffees

Step-by-step explanation:

46×3= 138

29×6= 174

174+138=312

4 0
3 years ago
–6 + (–12)<br><br><br>Evaluate the expression
Elanso [62]

Answer:

-18.

Step-by-step explanation:

They're both negative numbers being added to each other, so you'd add 6 and 12 (which is 18) and then put a negative sign before the 18. Therefore, your answer is -18.

I hope this helps, have a nice day.

3 0
3 years ago
Other questions:
  • Which expression is equivalent to 6 - (-21) ? *<br> O 6-21<br> O 6+21<br> O-21-6<br> 0 -21 +6
    7·2 answers
  • What is the measure of
    12·1 answer
  • The angles of a quadrilateral are 140, 80, 60, and 80<br> What type of quadrilateral could it be?
    5·1 answer
  • In a certain region, the number of highway accidents increased by 20% over the four years period. How many accidents were there
    8·1 answer
  • Find the exact value tan^-1(tan(3pi))
    10·1 answer
  • Ian walks down a sloped path. After 6 minutes, he is 3 m above street level. Write the equation in slope-intercept form of the l
    9·2 answers
  • For which set of probabilities would events A and B be independent?
    10·2 answers
  • 2/3 question. all who answer get respect. even if inncorrect
    14·1 answer
  • 76 1/2 long division write each rational number as a terminating
    14·1 answer
  • The temperature during a winter day was less than –3 degrees Fahrenheit. Yuri wants to write an inequality for the temperature d
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!