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
Nutka1998 [239]
2 years ago
12

What is the value of c so that 9x^2 + 15x + c = 0 has one rational solution

Mathematics
2 answers:
liberstina [14]2 years ago
8 0

Answer:

c = 6.25

Step-by-step explanation:

For this to occur, the discriminant of the quadratic formula must = 0

b^2 - 4ac = 0

15^2 - 4(9)(c) = 0

36c = 225

c = 6.25

valentinak56 [21]2 years ago
6 0

Answer:

c=-9x^2-15x

Step-by-step explanation:

You might be interested in
This is the last thing i need..
Whitepunk [10]

Answer:

whats the question

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Which statements describe acceleration? Check all that apply.
serious [3.7K]
<span>Positive acceleration occurs when an object speeds up in the positive direction.
Positive acceleration occurs when an object speeds up in the negative direction.
Hope this helps.</span>
8 0
3 years ago
Read 2 more answers
How do you work this out?
Ira Lisetskai [31]
I'm guessing you find the length of the hypotenuse using the pythagorean theorem. 

a² + b² = c²     a and b are the legs and c is the hypotenuse

15² + 8² = c²

225 + 64 = c²

289 = c²

√289 = √c²

17 = c

hope that helps, God bless!
3 0
3 years ago
Read 2 more answers
15=x/3 +7 equation to words
emmasim [6.3K]
15 is equal to x divided by 3 plus 7
5 0
2 years ago
Please answer this correctly
RUDIKE [14]

Answer:

11\dfrac{3}{8}\text{cm}

Step-by-step explanation:

1\dfrac{5}{8}+2\dfrac{9}{16}+2\dfrac{9}{16}+4\dfrac{1}{8}=11\dfrac{3}{8}

Hope this helps!

3 0
3 years ago
Other questions:
  • A large map of the United States uses a scale of $2 \text{ cm} = 2.5\text{ km}$. On the map, the distance between two cities is
    7·2 answers
  • A ball is thrown into the air with an initial velocity of 22 meters per second.The quadratic function h(t)=-4.9t2+22t+5.5represe
    7·1 answer
  • The cost of tickets to the amusement park is $19.50 for 1 ticket and $78 for 4 tickets
    14·1 answer
  • Given the function ƒ( x ) = 3 x + 1, evaluate ƒ( a + 1).
    6·2 answers
  • PLEASE HELP !
    14·1 answer
  • Please help. is due today. Thank you​
    9·1 answer
  • Please answer this and I will give brainliest
    7·1 answer
  • Hey humanoids what is x? 81^5 = 3^x<br> x=?
    8·1 answer
  • Pls help extra points and mark brainlist
    11·1 answer
  • Answer Fast!!! Why does 10 to the power of -2 equal 0.01<br> Please tell me quickly!!!!!!!!!!!
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!