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
hram777 [196]
2 years ago
7

Please help. I’ll mark you as brainliest if correct!!!!

Mathematics
1 answer:
aliya0001 [1]2 years ago
8 0

Answer:

(-∞, -6] U [-2, ∞)

Step-by-step explanation:

To solve this, begin by factoring this quadratic equation into its factored form:

x² + 8x + 12 ≥ 0 becomes (x+6)(x+2) ≥ 0.

x = -6, and x = -2 are the zeros of this parabola. Therefore:

(-∞, -6] U [-2, ∞) are the parts of the graph above y = 0 because the graph

opens upward.

** Remember, when the '≥' sign is present, the

square brackets must be used.

You might be interested in
To the nearest tenth of a second, how much time would it take the penny to hit the
lyudmila [28]

B. 0.6 seconds

Because they want you to round to the nearest 10th and 0 is the ground.

6 0
2 years ago
Read 2 more answers
14.What is the solution of the system?
Archy [21]

Answer:

14.  x=-2.5,  y = -7

15.  x=28  y = -20

Step-by-step explanation:

14.  Let's solve this system by elimination.  Multiply the first equation by -1.

-1*(4x-y)= -1*(- 3)

-4x +y = 3

Then add this to the second equation.

-4x+y = 3

6x-y= - 8

--------------

2x   = -5


Divide each side by 2

x = -2.5

We still need to find y

-4x+y =3

-4(-2.5) + y =3

10 +y =3

Subtract 10 from each side.

y = 3-10

y = -7


15.I will again use elimination to solve this system, because using substitution will give me fractions which are harder to work with.   I will elimiate the y variable.  Multiply the first equation by 11

11( 5x+6y)= 11*20

55x+66y = 220

Multiply the second equation by -6

-6(9x+11y)=32*(-6)

-54x-66y = -192


Add the modified equations together.

55x+66y = 220

-54x-66y = -192

---------------------------

x = 28

We still need to solve for y

5x+6y = 20

5*28 + 6y =20

140 + 6y = 20

Subtract 140 from each side

6y = -120

Divide by 6

y = -20

3 0
2 years ago
Which of the following is an equation of the circle with a center at (-1,4) and a radius of 2√5 units? plss pahelp naman
Ksivusya [100]

Answer:

Option A

Step-by-step explanation:

The standard form of an equation of a circle is represented by the formula (x-h)^2+(y-k)^2 = r^2. Remember that (h,k) is the center and r^2 is the radius squared.

So, the equation of the circle must be (x+1)^2 +(y-4)^2 = 20. Complete the square to change the form of the equations listed in the options and find the one that is equal.

Let's try this with option A. Move the constants to the right side, then use the completing the square method to place the equation in standard form:

x^2 + y^2 +2x -8y -3 = 0\\x^2 + y^2 +2x-8y = 3\\x^2 + 2x +y^2-8y = 3\\(x^2 +2x+1)+(y^2-8y +16)=3+1+16\\(x+1)^2 + (y-4)^2=20

The end result matches with the equation determined before, so option A is the answer.  

8 0
2 years ago
Bailey likes the shape of her friend's pool, but she wants one that is half the volume. According to Cavalieri’s Principle, what
Cerrena [4.2K]

Answer: I need a picture off the pool and measurements.

Step-by-step explanation: I need this in order to figure out the problem and give you a helpful answer.

8 0
3 years ago
Read 2 more answers
I could really use your help , 25 POINTS!!
In-s [12.5K]

since line AB and CD make all right angles (given) angles 6+7+8 will equal 90 degrees.


According to the verticle angles rule:

angle 2 is equal to angle 6

angle 3 is equal to angle 7

angle 4 is equal to angle 8.


which proves that angle 2+4+7=90 degrees

8 0
3 years ago
Other questions:
  • Which numbers from 2 to 9 would divide evenly into 72 show your work
    11·2 answers
  • 9.<br> A quadratic function g(x) passes through the points (-8, 33), (2, 1), and (8, 1).
    11·1 answer
  • How is the graph of y = 8x^2 − 1 different from the graph of y = 8x^2?
    8·1 answer
  • Hiiii, can someone plz help me?
    14·1 answer
  • A bag of stuffed animals contains 12 bears, 10 dogs, and 3 cats.
    10·1 answer
  • Melissa walked 9 over 12 miles each day for 5 days. What was the total distance,in miles she walked in 5 days.
    15·2 answers
  • barb is making a bead necklace she strings 1white bead then 3 blue beads then 1 white bead and so on write the numbers for the f
    5·1 answer
  • I need help with this one!!
    9·2 answers
  • Which figure can be formed from the net?
    15·2 answers
  • Factor the linear expression 15x-10 using the greatest common factor of the terms
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!