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
Fudgin [204]
3 years ago
10

Which property would be useful in proving that the product of two rational numbers is ALWAYS rational? A) a b + c d = ad + bc bd

B) a + b cd = a cd + b cd C) a b · c d = ac bd D) a b ÷ c d = a b · d c
Mathematics
2 answers:
Mademuasel [1]3 years ago
3 0

Answer:

C

Step-by-step explanation:

So we need to understand what is rational numbers?

Rational number which can be written under this form: \frac{x}{y} when x any are both integers and y\neq 0

The question here is : Which property would be useful in proving that the product of two rational numbers. In math, when we talk about the product of at least two number, it implies to the multiplication in the operation.

Here, only answer C: \frac{a}{b} *\frac{c}{d} = \frac{ac}{bd} with the condition b\neq 0 and    d \neq 0 and a, b, c and d are integers. Product of two integers is always an integer..

serious [3.7K]3 years ago
3 0

Answer:

Which property would be useful in proving that the product of two rational numbers is ALWAYS rational?

A)  ab+ cd= ad + bcbd

B)  a + bcd= acd+ bcd

<u><em>C)  ab· cd= acbd</em></u>

D)    ab÷ cd= ab· dc

Step-by-step explanation:

You might be interested in
Marcus is making homemade barbecue sauce.The recipe caps for 3 cups of ketchup for every 1/2 cup of mustard
SSSSS [86.1K]

Answer:

3 divided  by 1/2

Step-by-step explanation:

turn 3 into 3/1  then flip 1/2 into 2/1 and multiply which is <u><em>6</em></u>

Kcf

Keep

Change

Flip

3 0
3 years ago
Read 2 more answers
Identify the y intercept of the parabola below
Stells [14]

Answer:

The y intercept for this one is two.

5 0
3 years ago
Read 2 more answers
How many yards is the library to the post office
Alchen [17]
1 mile  =  1,760 yards
2 miles = 3,520 yards
3 miles = 5,280 yards
4 miles = 7,040 yards
5 miles =  ?
3 0
3 years ago
Read 2 more answers
A coin contains 1.25 grams of nickel and 3.75 grams of copper, for a total weight of 5 grams what percentage of the metal in coi
Citrus2011 [14]
3.75/5 = .75
.75 X 100 = 75
75% is the answer
7 0
3 years ago
Read 2 more answers
What is f(2) for f(x)=2x^4-5x^2-3x+2
zysi [14]
2(2^4) - 5(2^2) - 3*2 + 2 = 32-20-6+2 = 8
8 0
3 years ago
Read 2 more answers
Other questions:
  • Is three and five a factor pair of 15
    14·2 answers
  • The number of a two dollar bill i need to pay for a purchase is 9 more than the number of 5 dollar bills i need to pay for the s
    14·1 answer
  • Who is Albert Einstein and i need for a essay so far i have
    9·1 answer
  • "John spent $30 on six toy cars. How much did each toy car cost? Write a one step equation. Solve"
    15·2 answers
  • If 2 less than or equal too X less than or equal too 6, which of the following has the greatest value
    13·2 answers
  • What is the next object in the pattern below
    10·1 answer
  • A car dealership is advertising a car for $16,299.99. If the sales tax rate is 6.5 percent, what
    12·1 answer
  • Pls help me number 8 plsssss
    14·1 answer
  • D
    15·1 answer
  • In a city, the distance between the library and the police station is 3 miles less than twice the distance between the
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!