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
Damm [24]
3 years ago
8

Someone please help me ! I suck at plotting inequalities and when are you suppose to keep the circle open or close ?

Mathematics
2 answers:
wariber [46]3 years ago
8 0
When it has the line under the sign that means the dot is closed. For example that is closed because it x is greater than or equal to -1, so if it has a line under the > sign that means the dot is closed
gulaghasi [49]3 years ago
5 0

keep the circle open if it there is no equal sign underneath the greater than or less than, that is because if there is no equal sign, then that value is not included, so it is open. If there is, then the value is a part of the solution, so it is closed circle to represent that it is part of the line.

You might be interested in
If correct I’ll give brainlest pls help
VladimirAG [237]

Answer:

C

Step-by-step explanation:

I did that test before we trusty meee

7 0
2 years ago
Help asap 20 points <br><br> Select the correct answer from each drop-down menu.
skelet666 [1.2K]

Answer: (99/13, 150/13)

Step-by-step explanation:

I'm too lazy to explain so here's a screen shot from desmos.

5 0
2 years ago
I would appreciate I someone could help me with these questions
svet-max [94.6K]
38: it's a right triangle
39:
area:
a = \pi {r}^{2}
a = 3.14 \times {10}^{2} = 314

circumference:
c = \pi \times diameter
c = 3.14 \times 20 = 62.8
8 0
3 years ago
What is the solution to the system of equations? Use the substitution method. {y=−2x+53x−4y=2
klio [65]

y =  - 2x + 53x - 4y = 2 \\  y  = 51x - 4y = 2 \\  > y = 51 x - 4y \\  > 51x - 4y = 2
y = 51x - 4y \\ 5y = 51x \\ y =  \frac{51}{5} x
Substitute 51/5x into
51x - 4( \frac{51}{5} x) = 2 \\ 51x - 40.8x = 2 \\ 10.2x = 2 \\ x = 2 \times  \frac{10}{102}  \\ x =  \frac{10}{51}  \: aka \: 0.196
Substitute that into
y =  \frac{51}{5}  \times  \frac{10}{51}  \\ y = 2
Hope this helps. Answer should be correct. Unless your quadratic equation is wrongly stated.
8 0
2 years ago
-4(5k-7)-2k=-2(9k+5)
Mice21 [21]
If you distribute -4 through (5k-7), it equals -20k + 28. Then put on the other -2k on that side of the equals sign and you should have -22k + 28 = -2(9k+5) Then you need to distribute -2 through (9k+5) which equals -18k - 10. You then should have -22k+28=-18k-10. Add 22k to both sides to cancel it out, then you should have 28=4k-10. Add 10 to both sides to get the 4k by itself, which will be 38=4k, then divide both sides by 4 to get k by itself. 38/4 = 19/2. k = 19/2
5 0
3 years ago
Other questions:
  • Write a definition and give an example of the Commutative Property of Addition using decimal numbers.
    5·1 answer
  • NEED HELP FAST PLEASE!
    8·2 answers
  • Mark runs 5 miles in 40 minutes. If he continues at the same rate, can he run 14 miles in 120 minutes?
    10·1 answer
  • Andrew has a new job at the local pizza store as a delivery boy. The following graph shows one of his deliveries he made. Analyz
    5·1 answer
  • you did 150 J of work lifting a 120 N backpack. how much did the backpack weigh in pounds?(hint:there are 4.448 N in one pound)
    13·1 answer
  • Which of the following functions are continuous for all real numbers? \begin{aligned} &amp;h(x)= \log(x) \\\\ &amp;g(x)=\cot(x)
    10·1 answer
  • Add 1.5×107 to 2.7×109.
    6·2 answers
  • Plsss Help!! Will mark brainiest!! Due soon!!
    9·2 answers
  • Dan rolls 2 fair dice and adds the results from each. Work out the probability of getting a total less than 3.
    13·1 answer
  • What is the scale factor? Multiple choice
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!