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
PtichkaEL [24]
3 years ago
15

WHAT IS THISDSSSSSSSSSSSSSSSSSSS

Mathematics
1 answer:
MaRussiya [10]3 years ago
8 0

Answer:

B

Step-by-step explanation:

Yes, it is. The set of rational numbers is closed for all the four operations, so x+y, x-y, x*y and x/y are rational too. And it is easy to demonstrate. A rational number can be expressed as a fraction of two integers. So, x can be expressed as a/b and y as c/d. Hence x+y = a/b + c/d = (ad+bc)/bd, which, as fraction of two integers, is rational.

You might be interested in
The question is; One kindergartner will be chosen at random to accept a prize. What is the probability that the student is a gir
Flauer [41]
Im pretty sure the answer is A
5 0
3 years ago
Sofia measures the length of her car as 16 feet. What is the greatest possible error? ______ feet What is the margin of error? _
Genrish500 [490]

Answer:

Sofia measures the length of her car as 16 feet.

What is the greatest possible error?  

<h2> ⇒ 0.5 feet </h2>

What is the margin of error?  

<h2> ⇒ 15.5  TO  ⇒ 16.5 feet</h2>

Step-by-step explanation:


3 0
3 years ago
112 is 70% of _______
aliina [53]

Answer:

160

Step-by-step explanation:

70% of 160=112.

A handy trick is to divide the number by the percentage.

Brainliest please I need those points.

8 0
3 years ago
Read 2 more answers
Find the fourth term of a geometric sequence if a=6 and r=2. Use the formula an=ar^n-1
Vikentia [17]

Answer:

48

Step-by-step explanation:

here, we are using an = ar^n-1

so, we have to find a4= ar^4-1 = ar^3

now, putting the given values in the equation,

a4= (6)(2)^3 = 6(8) = 48

therefore, the 4th term is 48.

<em>I</em><em> </em><em>have </em><em>done </em><em>this </em><em>question</em><em> </em><em>previously</em><em> </em><em>on </em><em>Gauthmath</em><em> </em><em>app,</em><em> </em><em>you </em><em>can </em><em>check </em><em>that </em><em>app </em><em>out,</em><em> </em><em>really </em><em>cool </em><em>app.</em><em> </em>

<em>A</em><em>l</em><em>l</em><em> </em><em>the</em><em> best</em><em> </em><em>with </em><em>your </em><em>exam.</em><em> </em><em />

8 0
3 years ago
What is the solution of the linear-quadratic system of equations?<br> y=x^2+5x−3<br> y−x=2
Vsevolod [243]

Answer:

x =  1, y = 3

x = -5, y = -3

Step-by-step explanation:

Point Form:

(1,3) , (-5, -3)

4 0
2 years ago
Read 2 more answers
Other questions:
  • Six nickels is what percent of one dollar? What percent of $2.00 would it be? Please help.
    8·1 answer
  • 10 more than Jose's age is 40.
    9·1 answer
  • If 30 fair dice are rolled find the approximate probability that the average number ofo dots is between 2 and 4
    9·1 answer
  • Find the area of an equilateral triangle (regular 3-gon) with the given measurement.
    5·1 answer
  • What is the math answer
    11·2 answers
  • Please help urgent!!
    5·1 answer
  • W/−2.5 = 8 what is w
    12·1 answer
  • The amount of interest,Y paid on a loan is directly proportional to the amount borrowed. Write en equation if y=75 when x=500.
    9·1 answer
  • Lauren ran the 400-meter dash in fifty-three and ten hundredths seconds. How
    14·1 answer
  • The sides of a rectangle are -5x + 10 and x – 4. Write an expression for its perimeter.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!