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
ladessa [460]
3 years ago
15

2. -3n(2n – 5) = 0

Mathematics
2 answers:
Semenov [28]3 years ago
8 0
-3n(2n-5)=0\iff -3n=0\ \vee\ 2n-5=0\\\\-3n=0\ \ \ |:(-3)\\n=0\\\\2n-5=0\ \ \ \ |+5\\2n=5\ \ \ |:2\\n=\dfrac{5}{2}

Answer:\ c.\ n=0\ or\ n=\dfrac{5}{2}

____ [38]3 years ago
7 0
Altho' it's rather obvious what you're supposed to do here, I'd suggest you always include all of the instructions.

<span>-3n(2n – 5) = 0  is easily solved.  Ignore the coefficient -3.  Then you have n(2n-5)=0  Then either n=0 or 2n=5, which results in n=0 and n = 5/2 (solutions).

</span>
You might be interested in
What numbers do you need to determine the surface area of a right cone? ANSWERS: The radius of the base, r, and the altitude h.
tiny-mole [99]

Answer:

The Radius of the base, r, and the altitude h

Step-by-step explanation:

Surface area of a right cone

a=\pi r\sqrt{h^{2}+r^{2}  }

R= Radius

H=Radius

7 0
3 years ago
Question 7
Angelina_Jolie [31]

Answer:

Step-by-step explanation:

i

3 0
3 years ago
there are 53 oranges in a box that contains a total of 77 pieces of fruit. how many oranges need to be added so that the box con
Tju [1.3M]
Ok so do 100 divided by 77 to get about 1.3% per fruit. then do 1.3 times 53 to get the current percent of oranges which is about 69% then do 84% minus 69% to get the difference then divide by 1.3 to get about 11.5 oranges so you round to 12 oranges. So 12+53 to get 65 total oranges to equal 84% of the 77 fruit in the box.
6 0
3 years ago
The first side of a triangle is 9 meters shorter than the second side. The third side is 3 times as long as the first side. The
Alex73 [517]

Answer:

The longest sides is 18 m long.

Step-by-step explanation:

Let x meters be the length of the first side.

The length of the second side = x+9 m.

The length of the third = 3x m.

Perimeter = x + 3x + x + 9 = 39

5x + 9 = 39

5x = 30

x = 6 m.

The other 2 sides are  6+9 = 15 m and 3*6 = 18 m.

7 0
3 years ago
A hose is used to fill an empty wading pool. The graph shows volume (in gallons) in the pool as a function of time (in minutes).
Black_prince [1.1K]
You have to provide the options
5 0
3 years ago
Other questions:
  • you draw two cards from a well-shuffled deck of 52 cards. After you draw the first card, you do not replace it in the deck. What
    9·1 answer
  • Samantha received an allowance of $3 every week. By babysitting, she earned $30 every week. How much did Samantha have in four w
    11·1 answer
  • A small school has 110 students who occupy three classrooms: a, b, and
    5·1 answer
  • Which statement about rational numbers is true?​
    13·2 answers
  • Which inequality correctly compares Five-sixths, One-half, Three-ninths, and 1?
    13·1 answer
  • What is the solution to the equation 1 over 21 multiplied by x is equal to 1 over 7?
    9·1 answer
  • A bag contains 4 red, 5 blue, and 6 green marbles: ​One blue marble is selected and NOT replaced. If a 2nd marble is drawn, what
    9·2 answers
  • Plz help me! I don’t get it
    8·2 answers
  • HELP PLEASE I REALLY NEED IT
    6·1 answer
  • Nat has 2 episodes filmed for her new series. She plans
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!