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
aksik [14]
3 years ago
15

Which set includes rational numbers but not natural numbers

Mathematics
1 answer:
lapo4ka [179]3 years ago
8 0

Answer:

The first option (-6 2/3, -2, 5/11, 7/8)

Step-by-step explanation:

This set of numbers is the only one that does not contain any positive numbers.

You might be interested in
Question 3(Multiple Choice Worth 4 points) (06.06) Which of the following demonstrates the Distributive Property? 3(4a + 2) = 12
storchak [24]

Answer:

12a + 6

Step-by-step explanation:

given 3(4a + 2)

multiply each term in the parenthesis by the 3 outside ( distributive law )

= (3 × 4a ) + (3 × 2 ) = 12a + 6


8 0
2 years ago
Read 2 more answers
On a certain day the temperature changed a rate of -3 degrees Fahrenheit per hour how long did it take for the temperature to ch
swat32

Answer: is 11 hours.

6 0
3 years ago
Train A and train B leave the station at 2 pm. The graph below shows the distance covered by the two trains. Compare the two spe
jarptica [38.1K]

Both trains travel for 7 time units.

Train A travels 385 distance units, so its speed is

\dfrac{385}{7}=55

Train B travels 577.5 distance units, so its speed is

\dfrac{577.5}{7}=82.5

Note that the units are not specified, but considering that we're talking about trains, the graph is likely to be showing distance in km (or miles) and time in hours.

Also, the distance traveled by train B is not perfectly aligned with the grid, so I assumed that it was the average between the two ticks of 550 and 605.

7 0
2 years ago
Two sides of a triangle measure 10 inches and 13 inches. The included angle between these sides is 55°. What is the approximate
PolarNik [594]
The answer should B 11.2 inches
4 0
2 years ago
Which statements are true about the graph of the function f(x) = x2 – 8x + 5? Check all that apply.
statuscvo [17]

Answer:

A, D, E are true

Step-by-step explanation:

You have to complete the square to prove A.  Do this by first setting the function equal to 0, then moving the 5 to the other side.

x^2-8x=-5

Now we can complete the square.  Take half the linear term, square it, and add it to both sides.  Our linear term is 8 (from the -8x).  Half of 8 is 4, and 4 squared is 16.  So we add 16 to both sides.

(x^2-8x+16)=-5+16

We will do the addition on the right, no big deal.  On the left, however, what we have done in the process of completing the square is to create a perfect square binomial, which gives us the h coordinate of the vertex.  We will rewrite with that perfect square on the left and the addition done on the right,

(x-4)^2=11

Now we will move the 11 back over, which gives us the k coordinate of the vertex.

(x-4)^2-11=y

From this you can see that A is correct.

Also we can see that the vertex of this parabola is (4, -11), which is why B is NOT correct.

The axis of symmetry is also found in the h value.  This is, by definition, a positive x-squared parabola (opens upwards), so its axis of symmetry will be an "x = " equation.  In the case of this type of parabola, that "x = " will always be equal to the h value.  So the axis of symmetry is

x = 4, which is why C is NOT correct, either.

We can find the y-intercept of the function by going back to the standard form of the parabola (NOT the vertex form we found by completing the square) and sub in a 0 for x.  When we do that, and then solve for y, we find that when x = 0, y = 5.  So the y-intercept is (0, 5).

From this you can see that D is also correct.

To determine if the parabola has real solutions (meaning it will go through the x-axis twice), you can plug it into the quadratic formula to find these values of x.  I just plugged the formula into my graphing calculator and graphed it to see that it did, indeed, go through the x-axis twice.  Just so you know, the values of x where the function go through are (.6833752, 0) and (7.3166248, 0).  That's why you need the quadratic formula to find these values.

7 0
3 years ago
Other questions:
  • Paul has 16 baseballs and 12 golf balls what is the ratio of balls to golf balls
    10·1 answer
  • Add<br> (5x^4+ 2x^3– 1)+(3x² – 3x + 3)
    13·2 answers
  • Please answer it now in two minutes
    15·1 answer
  • 8. What is the sum of the exterior angles of
    7·2 answers
  • The equation x2 – 1x – 90 = 0 has solutions {a, b}. What is a + b?
    11·2 answers
  • Solve the following system: (5 points)
    5·1 answer
  • Layla has a coin that has a 60%, percent chance of showing heads each time it is flipped. She is going to flip the coin 5 times.
    11·2 answers
  • Which exponential functions have been simplified correctly? Check all that apply.
    7·1 answer
  • 8^2 x 6{4 + 8^2(10 - 6)}^2
    9·1 answer
  • What is 5.202÷0.0255​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!