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
aliya0001 [1]
3 years ago
9

Which of the following inequalities define a region that contains all of Quadrant 3?

Mathematics
1 answer:
Bingel [31]3 years ago
3 0
Refer to the diagram shown below.

The shaded area satisfies the two inequalities
y > x - 1
and
y < 1 -x

Answer: A and D

You might be interested in
Write the square of (2x+1/x)
pentagon [3]

Answer:

((2 x^2 + 1)^2)/(x^2)

Step-by-step explanation:

Simplify the following:

(2 x + 1/x)^2

Hint: | Put the fractions in 2 x + 1/x over a common denominator.

Put each term in 2 x + 1/x over the common denominator x: 2 x + 1/x = (2 x^2)/x + 1/x:

((2 x^2)/x + 1/x)^2

Hint: | Combine (2 x^2)/x + 1/x into a single fraction.

(2 x^2)/x + 1/x = (2 x^2 + 1)/x:

((2 x^2 + 1)/x)^2

Hint: | Distribute exponents over quotients in ((2 x^2 + 1)/x)^2.

Multiply each exponent in (2 x^2 + 1)/x by 2:

Answer: ((2 x^2 + 1)^2)/(x^2)

6 0
3 years ago
Trains Two trains, Train A and Train B, weigh a total of 360 tons. Train A is heavier than Train B. The difference of their weig
Sergio [31]
Since both trains in total weigh 360 tons and train A weighs more than train be, it means that train B is the rest of the weight when you subtract train A from the total amount. Difference means subtraction so just solve this: 360-272 to get train B and you already know that train A is 272 tons. Please mark branliest!


8 0
3 years ago
Candice is preparing for her final exam in Statistics. She knows she needs an 65 out of 100 to earn an A overall in the course.
sertanlavr [38]

Answer:

a. 72

b. 816

c. 570

d. 30

Step-by-step explanation:

Given the graph is a bell - shaped curve. So, we understand that this is a normal distribution and that the bell - shaped curve is a symmetric curve.

Please refer the figure for a better understanding.

a. In a normal distribution, Mean = Median = Mode

Therefore, Median = Mean = 72

b. We have to know that 68% of the values are within the first standard deviation of the mean.

i.e., 68% values are between Mean  Standard Deviation (SD).

Scores between 63 and 81 :

Note that 72 - 9 = 63 and

72 + 9 = 81

This implies scores between 63 and 81 constitute 68% of the values, 34% each, since the curve is symmetric.

Now, Scores between 63 and 81 =  

= 68 X 12 = 816.

That means 816 students have scored between 63 and 81.

c. We have to know that 95% of the values lie between second Standard Deviation of the mean.

i.e., 95% values are between Mean  2(SD).

Note that 90 = 72 + 2(9) = 72 + 18

Also, 54 = 63 - 18.

Scores between 54 and 90 totally constitute 95% of the values. So, Scores between 72 and 90 should amount to  of the values.

Therefore, Scores between 72 and 90 =  

= 570.

That is a total of 570 students scored between 72 and 90.

d. We have to know that 5 % of the values lie on the thirst standard Deviation of the mean.

In this case, 5 % of the values lie between below 54 and above 90.

Since, we are asked to find scores below 54. It should be 2.5% of the values.

So, Scores below 54 =  

= 2.5 X 12 = 30.

That is, 30 students have scored below 54.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Evaluate.
zalisa [80]

Answer:

52

Step-by-step explanation:

14+13= 27+2=29+23=52

7 0
3 years ago
Read 2 more answers
What is the interquartile range of this data set? 2,5,9,11,18,30,42,55,58,73,81
Tcecarenko [31]

Answer:

I think it's 49 I'm sry if I'm wrong hope you luck

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • At a day camp there is 56 girls and 42 boys the campers need to be split into equal groups each has either all girls are all boy
    12·1 answer
  • What is 1/2 subtract 1/6 divided by 4
    5·2 answers
  • in connecticut state championships, rodrigo runs 1 mile race four different times. he finished with times of a minutes, b minute
    10·1 answer
  • Which of the following scenarios describe the surface area of a figure? Select all that apply.
    8·2 answers
  • A farmer needs to enclose three sides of a field with a fence (the fourth side is a river). The farmer has 49 yards of fence and
    6·1 answer
  • If (4^4)^x = 4^32, what is the value of x?
    13·2 answers
  • ABC is reflected over the y-axis. What are the vertices of
    9·1 answer
  • John order sneakers online. He ordered 2 pairs of Nikes at $50 each and 4 pairs of Yeezy's at $100 each. He also paid a shipping
    11·1 answer
  • Make the biggest possible number using the digits below only once2,9,4​
    10·1 answer
  • Solve by factorising x2 + 8x + 15 = 0
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!