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
Irene uses 9.6 pints of white paint and blue paint to paint her bedroom walls. 3 4 of this amount is white paint, and the rest i
Darina [25.2K]

Answer:

8

Step-by-step explanation:

9.6 divided by 3/4 = 0.8, so 8. Correct me if I'm wrong ya'll.

3 0
2 years ago
PLEASE PLEASE PLEASE PLEASE SHOW YOUR WORK
stellarik [79]

Answer:

9.11x10^-28

Step-by-step explanation:

1.67x10^-24 would be .000000000000000000000000167 and 9.11x10^-28 would be .0000000000000000000000000000911 and because it has more zeros in front of it, 9.11x10^-28 would be the smaller mass

I'm 99.99999999999999999% sure this is correct.

6 0
3 years ago
8 + 4f = 3f solve for f
navik [9.2K]

Answer:

f=-8

Step-by-step explanation:

8+4f=3f

8+4f-4f=3f-4f (Subtract 4f from both sides of the equation to isolate f)

8=-f (Simplify)

-f=8 (Symmetric Property of Equality)

\frac{-f}{-1} =\frac{8}{-1} (Divide both sides of the equation by -1 to get rid of f's coefficient; remember that -f=-1*f, so -f has a coefficient of -1)

f=-8 (Simplify)

Hope this helps!

4 0
3 years ago
Read 2 more answers
Find the rate of interest per annum when<br> 1. P= 900<br> T= 2 years<br> S.l. = 90
Bas_tet [7]

Answer:

5% p.a will rate of interest

6 0
3 years ago
Jordan is 27 miles short of his biking goal. Hayden went 27 miles over his goal. Which of the following statement is true?​
agasfer [191]

Answer:

Option A

Step-by-step explanation:

Jordan is 27 miles short of his biking goal.

This statement states that Jordan is 27 miles behind the goal.

Hayden went 27 miles over his goal.

This statement states that Hayden is 27 miles ahead of his goal.

Option A

Both are 27 miles away from their goal.

True.

Option B

Since, both were 27 miles away from their goal,

Statement is False.

Option C

Since, the goal was same both,

Given statement is False.

Option D

Goal was same for both Jordan and Hayden,

Statement is False.

5 0
3 years ago
Other questions:
  • Calculate the length of the circumference of a circle with radius of 2.8cm
    15·2 answers
  • Please help ASAP on number 29.
    5·1 answer
  • Meh need some help.Question 2 of 8
    13·2 answers
  • Please help with question above very simple
    11·1 answer
  • Can someone tell me the workout and the answer i the picture?
    11·1 answer
  • Jack borrowed $ 4,000.00 and paid $ 585.00
    15·1 answer
  • Please help , I have the picture and everything (worth 10 points) but don’t be on no bs .
    7·2 answers
  • Write about a
    5·1 answer
  • Please help, this makes no sense to me.
    13·2 answers
  • Find the 12th term of the geometric sequence 4, 8, 16, ...
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!