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
Ad libitum [116K]
3 years ago
11

Which equation does the graph of the systems of equations solve? quadratic graph opening down and quadratic graph opening up. Th

ey intersect at negative 4, 0 and negative 3, negative 1.
x2 − 2x + 8 = x2 − 8x − 16
x2 + 6x + 8 = −x2 − 8x − 16
−x2 − 2x + 8 = 2x2 − 8x − 16
−x2 − 2x + 8 = 2x2 − 8x + 16

Mathematics
1 answer:
Ghella [55]3 years ago
5 0
The quadratics of the 2nd choice are the only ones that go through both points (-4, 0) and (-3, -1).

x² +6x +8 = -x² -8x -16

_____
The quadratic with those two points as solution will be of the form
.. a(x +4)(x +3) = 0
.. a(x^2 +7x +12) = 0
When you subtract one side or the other to put the equation in this form, only the 2nd selection matches:
.. 2(x^2 +7x +12) = 0

You might be interested in
The ratio of passenger cars to cargo cars in
KonstantinChe [14]

44 cars

hope it helps....!!!

5 0
2 years ago
Draw a graph for the situation.
n200080 [17]
It will be a discrete graph, where there is no dependant nor independent variables, they are not related by any means.

Hope this helps.

6 0
3 years ago
Leilani practiced piano for 3/5 of an hour. Sarah practiced piano for 7/8 of an hour.
ivolga24 [154]

Answer:

The number of hours did Sarah practice more than Leilani is \dfrac{11}{40}  hours  .

Step-by-step explanation:

Given as :

The time for which Leilani practiced piano = \dfrac{3}{5} hours

The time for which Sarah practiced piano = \dfrac{7}{8} hours

Let the number of hours did Sarah practice more than Leilani = T hours

<u>Now, According to question</u>

The number of hours did Sarah practice more than Leilani = \dfrac{7}{8} hours -  \dfrac{3}{5} hours

Or, T =  \dfrac{35-24}{40} hours

Or, T =  \dfrac{11}{40} hours

So,The number of hours did Sarah practice more than Leilani = T =  \dfrac{11}{40}  hours

Hence, The number of hours did Sarah practice more than Leilani is \dfrac{11}{40}  hours  . Answer

3 0
3 years ago
three cones have a volume of 192π cm³.Cone A has a radius of 2 cm. Cone B has a radius of 3 cm. Cone C has a radius of 4 cm. fin
andrew11 [14]

9514 1404 393

Answer:

  A: 144 cm

  B: 64 cm

  C: 36 cm

Step-by-step explanation:

The volume of a cone is given by ...

  V = (1/3)πr²h

Solving for h, we get ...

  3V/(πr²) = h

Filling in the given values, we get ...

  3(192π)/(πr²) = h

  576/r² = h

Then the heights of the different cones are ...

  A: r = 2, h = 576/4 = 144 . . . cm

  B: r = 3, h = 576/9 = 64 . . . cm

  C: r = 4, h = 576/16 = 36 . . . cm

8 0
3 years ago
What is the value of x?<br><br> Enter your answer in the box.<br><br> x =
Assoli18 [71]

Answer:

x = 5

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

x² + 12² = 13², so

x² + 144 = 169 ( subtract 144 from both sides )

x² = 25 ( take the square root of both sides )

x = \sqrt{25} = 5

3 0
3 years ago
Other questions:
  • Solve and plot your answer on the number line below: 7.08 + 2x=15.96
    10·1 answer
  • Melissa averages a rate of 1.5 steps per second while walking. How many steps will she take in an hour if this rate continues?
    13·1 answer
  • If 16=x/20 then x equals..<br><br>please explain the steps on how to do this problem
    14·2 answers
  • The elevation of city A is 96 feet below sea level; the elevation of city C is 25 feet below sea level. The elevation of city D
    15·1 answer
  • The distance between Cincinnati and Charlotte is 336 miles. The distance between Cincinnati and Chicago is 247 miles. If Perry d
    9·1 answer
  • The Smith family went to the theater
    8·1 answer
  • In the diagram below, what is the ratio of unshaded parts to shaded parts?
    7·1 answer
  • In a movle theater, each row has 20 seats. Which equation represents this proportional relationship?
    12·1 answer
  • 5.163 + 1/8 <br> Yfhhgfhvghbvcfhhxkzkgzhf jdzjzydzywRsyxutxir
    12·1 answer
  • Q5.<br> Express 56 as the product of its prime factors.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!