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
bogdanovich [222]
3 years ago
15

Hey, do you mind helping me? what are the roots of x in -10x + 12x - 9 = 0?

Mathematics
1 answer:
Alex73 [517]3 years ago
3 0

Answer:

x=−6±3√5

Step-by-step explanation:

You might be interested in
Dexter’s aquarium holds 4.5 gallons of water. He needs to add some chemicals to balance the pH level in the aquarium. However, t
Sati [7]

Answer:

the answer is d 17.1 L

Step-by-step explanation:

8 0
3 years ago
Which equation is a direct variation function?<br> O y=x<br> O y = x + 2<br> O y=&amp;<br> Oy=4
LiRa [457]
The answer is B , y= x + 2
8 0
3 years ago
Which of the following is the complete list of roots for the polynomial function f(x)=(x^2+6x+8)(x^2+6x+13)
MrMuchimi

Answer:

<h2>x = -4 or x = -2</h2>

Step-by-step explanation:

f(x)=(x^2+6x+8)(x^2+6x+13)\\\\f(x)=0\iff(x^2+6x+8)(x^2+6x+13)=0\iff\\x^2+6x+8=0\vee x^2+6x+13=0\\\\x^2+6x+8=0\\x^2+4x+2x+8=0\\x(x+4)+2(x+4)=0\\(x+4)(x+2)=0\iff x+4=0\ \vee\ x+2=0\\x+4=0\qquad\text{subtract 4 from both sides}\\\boxed{x=-4}\\x+2=0\qquad\text{subtract 2 from both sides}\\\boxed{x=-2}\\\\x^2+6x+13=0\qquad\text{subtract 13 from both sides}\\x^2+6x=-13\\x^2+2(x)(3)=-13\qquad\text{add}\ 3^2=9\ \text{to both sides}\\x^2+2(x)(3)+3^2=-13+9\qquad\text{use}\ (a+b)^2=a^2+2ab+b^2\\(x+3)^2=-4

8 0
3 years ago
Stacy is selling tickets for the school play. She has a total of 200 seats available, and there will be two types of tickets off
Ganezh [65]

She sold 74 child tickets and 126 adult tickets

Step-by-step explanation:

Stacy is selling tickets for the school play

  • She has a total of 200 seats available, and there will be two types of tickets offered, child and adult tickets
  • She sold each child ticket for $6 , each adult ticket for $10 , and made a total of $1704

We need to find how many of each ticket  she sold

Assume that x is the number of child tickets and y is the number of the adult tickets

∵ She has a total of 200 seats available

∵ She sold x child tickets

∵ She sold y adult tickets

- Add x and y, then equate the sum by 200

∴ x + y = 200 ⇒ (1)

∵ She sold each child ticket for $6

∵ She sold each adult ticket for $10

∵ She made a total of $1704

- Multiply x by 6 and y by 10, then add the products and

   equate them by 1704

∴ 6x + 10y = 1704 ⇒ (2)

Now we have a system of equation to solve it

Multiply equation (1) by -10 to eliminate y

∵ -10x - 10y = -2000 ⇒ (3)

- Add equations (2) and (3) to find x

∴ -4x = -296

- Divide both sides by -4

∴ x = 74

- Substitute the value of x in equation (1) to find y

∵ 74 + y = 200

- Subtract 74 from both sides

∴ y = 126

She sold 74 child tickets and 126 adult tickets

Learn more:

You can learn more about the system of equations in brainly.com/question/2115716

#LearnwithBrainly

6 0
3 years ago
the function graphed shows kyoko's typing speed in words per minute (wpm) x weeks after she began typing course. How many words
Alinara [238K]

Answer:

where is the graph once you upload it i will edit my answer

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Which statement correctly compares the values in the statement?
    14·1 answer
  • The equation d = d equals StartFraction m Over V EndFraction. can be used to calculate the density, d, of an object with mass, m
    5·2 answers
  • P(x) with rational coefficients has the given roots (i and 7 + 8i) Find two additional roots?
    8·1 answer
  • What is the measure of the complement of JKI? the supplement
    14·1 answer
  • A 1400 kg car moving +13.7 m/s makes an elastic collision with a 3200 kg truck, initially at rest. What is the velocity of the c
    10·1 answer
  • Write the numbers -|-2|, -(8), |-3|, -7 in order from smallest to largest.
    12·1 answer
  • Find y<br><br> Help me please
    9·2 answers
  • Find the value of x so that the function has the given value.<br>p(x) = 6x - 12; p(x) = 18​
    5·1 answer
  • If an 8 sided spinner has 2 one's, 2 two's, 2 three's, and 2 four's, what is the probability of spinning a 3?
    6·1 answer
  • Plzzzzzzzzzzzzzzzzzzzzzzzzzz
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!