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
SVEN [57.7K]
3 years ago
9

Which number is irrational?? Help..!

Mathematics
1 answer:
kakasveta [241]3 years ago
5 0
B is the irrational. C & D are rational as they can be written in a ratio, aka a simple fraction. A is rational as it simplifies to +/-2, a whole number.
You might be interested in
if the measure of <BEC is (2x+3)° and x=30, which expression could represent the measure of <AED?​
Maurinko [17]

Answer:

The answer is 3x-27

Step-by-step explanation:

If the angles are vertical from each other it means they are congruent. 2x+30 is 63, you plug in the x, 2(30)+30. You do that to the second one and also get 63, 3(30)-27. Therefore 3x-21 is the answer.

8 0
3 years ago
6/11+1/2 what is the answer
tester [92]

Answer:

1 1/22

Step-by-step explanation:


5 0
3 years ago
I will be taking an algebra test unit 3.12.3
Nonamiya [84]

OKay i willl help what are the questions


4 0
3 years ago
What is the area of the trapezoid shown ?
Irina18 [472]

Answer:

A = 1/2 * (a + c) * h

A = 1/2 * (6 + (2 + 6 + 2)) * 6 = 48

5 0
3 years ago
A simple random sample of size nequals15 is drawn from a population that is normally distributed. The sample mean is found to be
Bond [772]

Answer with explanation:

To test the Significance of the population which is Normally Distributed we will use the following Formula Called Z test

   z=\frac{\Bar X - \mu}{\frac{\sigma}{n}}

\Bar X =31.1\\\\ \sigma=6.3\\\\ \mu=25\\\\n=15\\\\z=\frac{31.1-25}{\frac{6.3}{\sqrt{15}}}\\\\z=\frac{6.1\times\sqrt{15}}{6.3}\\\\z=\frac{6.1 \times 3.88}{6.3}\\\\z=3.756

→p(Probability) Value when ,z=3.756 is equal to= 0.99992=0.9999

⇒Significance Level (α)=0.01

We will do Hypothesis testing to check whether population mean is different from 25 at the alpha equals 0.01 level of significance.

→0.9999 > 0.01

→p value > α

With a z value of 3.75, it is only 3.75% chance that ,mean will be different from 25.

So,we conclude that results are not significant.So,at 0.01 level of significance population mean will not be different from 25.

3 0
3 years ago
Other questions:
  • Write an equivalent equation that does not contain parentheses for 3(k-x) = -3x-9
    11·1 answer
  • The side of a square is (4x - 2y). What is the perimeter of the square?
    9·2 answers
  • a straight line through points p and q is drawn perpendicular to a line through points p(x,y) and r(x,(y+10)) . the possible coo
    11·1 answer
  • The function f(x) = –x2 − 2x + 15 is shown on the graph. What are the domain and range of the function?
    12·1 answer
  • I have difficulty figuring out surface area so I hope you wouldn't mind helping me
    11·2 answers
  • 5x +7y =19, -5x - 3y = 11
    8·1 answer
  • Pls help me and I’ll give brainliest to u and if u don’t know don’t answer and also don’t waste my points thx
    6·2 answers
  • La factura de celular del mes pasado ascendió a un total de $239 por un consumo de 269 minutos de llamada, mientras que la de es
    6·1 answer
  • Given the set of vertices, determine whether parallelogram ABCD is a rhombus, rectangle or square. List all that apply. A(7,-4),
    6·1 answer
  • The radius of a circle is 14 inches. What is the circle's area?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!