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
yarga [219]
3 years ago
9

Which of the following sets contains only rational numbers?

Mathematics
2 answers:
sp2606 [1]3 years ago
4 0
Rational numbers are numbers which can be written as a fraction (the formula is p/q). They don't include roots we can't solve in order to get a whole number and pi.

A. 776, pi, 25.209, √9   --->    NO (because of pi)
B. 726, 7/34, 20.209, √9    --->   YES
C. √3, 7/39, 20.3, √9   --->    NO (because of √3)
D. 726, 7/34, 20.209, √5   --->   NO (because of √5

Note that √9 = 3, so it IS a rational number.
aliya0001 [1]3 years ago
3 0

Answer:

Option (B) is correct

Step-by-step explanation:

The rational number is in the form of \frac{x}{y} , whereas x and y are the integers and q must not be equal to zero.

 Rational number is also a terminating or if not terminating it should be

re-occurring.

Considering the option B

726 is a rational number

\frac{7}{34} is also a rational number as per definition

20.209 is also a rational number

\sqrt{9}= 3, is also a rational number

Hence, option (B) is correct.

You might be interested in
1. what two things need to be true in order to add/subtract two radicals ?
Novay_Z [31]

Answer: 1. To add or subtract radicals, the indices and what is inside the radical (called the radicand) must be exactly the same. If the indices and radicands are the same, then add or subtract the terms in front of each like radical. If the indices or radicands are not the same, then you can not add or subtract the radicals.2.The index tells you how many of a kind you need to put together to be able to move that number or variable from inside the radical to outside the radical. For example, if the index is 2 (a square root), then you need two of a kind to move from inside the radical to outside the radical.3.When factoring a trinomial in the form x2 + bx + c, consider the following tips. Look at the c term first. o If the c term is a positive number, then the factors of c will both be positive or both be negative. In other words, r and s will have the same sign.

Step-by-step explanation:

6 0
2 years ago
Find the sum of the given polynomials.
Xelga [282]
Sum = <span>ax + by + c + 2ax - 3by + c + by - c
Adding and cancelling the like terms
Sum = 3 </span><span>ax - by + c

</span><span>a. 3ax - by + c</span>
6 0
3 years ago
Read 2 more answers
A boat starts from a port and moves 12 miles north and then moves 5 miles east. what is the present distance of the boat from th
disa [49]
If you sketch the path of the boat, you will form a right triangle towards the port. The distance from the port to the present position is the hypotenuse since it is opposite from the right angle formed by the 12 miles north and 5 miles east movement. Since it is a right triangle, use the Pythagorean Theorem to solve the hypotenuse.

Solution:

h² = o² + a²
h² = 12² + 5²
h² = 144 + 25
h² = 169
√h² = √169
h= 13

The present distance of the boat from the port is 13 miles.
7 0
3 years ago
Which expression equals 6x − 5y + 2 − 8x + 3( y + 5)? A) 3x − 2y + 17 B) −3x + 2y + 17 C) −2x − 2y + 17 D) −2x − 2y − 17
inysia [295]

Answer:

<u>C) −2x − 2y + 17</u>

Step-by-step explanation (PEMDAS):

First, we do <u>3 (y + 5)</u> because of the parenthesis:

6x − 5y + 2 − 8x + 3y + 15

Since there are no exponents, multiplication ,or division, we will add and subtract. But we have to make sure we <u>combine like terms</u>. X with X's, Y with Y's and constants with constants. And ALWAYS go from left to right

6x − 5y + 2 − 8x + 3y + 15

<u>−2x</u> − 5y + 2 + 3y + 15

−2x <u>− 2y</u> + 2 + 15

<em>−2x − 2y</em><em> </em><em>+ </em><em><u>17</u></em><em>.</em>

8 0
3 years ago
How to multiply and divide rational numbers?
lutik1710 [3]

To divide rational numbers, you turn the division problem into a multiplication problem by flipping the second rational number. Then you go ahead and multiply the tops and bottoms together to get your answer. If you can simplify your problem before multiplication, you can go ahead and do so to make your problem easier.

5 0
3 years ago
Read 2 more answers
Other questions:
  • The standard kilogram (fig. 1.1a) is a platinum–iridium cylinder 39.0 mm in height and 39.0 mm in diameter. what is the density
    7·1 answer
  • What number is between 2 and 7 is less than 100 but larger than 50 the product of three different prime numbers?
    10·2 answers
  • Solve -3+2ln(x)=0<br><br><br> .......
    6·1 answer
  • How to find integers and their opposites closed under addtion
    11·2 answers
  • The system of equations n=m and n=4m is the point (0,0). which of the following statements is true.
    12·2 answers
  • How do you find rate of change? O change in y/change in x. change in x/change in y​
    15·1 answer
  • Solve the proportion: 1/4 = x/20
    5·2 answers
  • -k/3 = 9<br> answer = ??
    5·2 answers
  • Instructions: Find the measure of the indicated angle to the nearest degree.
    14·1 answer
  • If the cost to purchase and install carpet is $4 per square foot, how much will it cost to put carpet in the family room and hal
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!