Will the difference of two rational numbers be always rational

1 answer:

7 0

Since ad, bc, and bd are integers since integers are closed under the operation of multiplication and ad-bc is an integer since integers are closed under the operation of subtraction, then (ad-bc)/bd is a rational number since it is in the form of 1 integer divided by another and the denominator is not eqaul to 0

You might be interested in

Sorry I need it asap in I will give 5 stars to all the answers

Fantom [35]

Answer:

A. the equality means that the two equations should be equal in a certain x value. Solving the x for these equation gives you the x point where the 2 equations intersect.

B. The x value where the funcionts intersect is x = 1

Step-by-step explanation:

You can solve the x value using natural logarithms.

If you make a table for the two functions you will also see the result:

Value y = 8^x y = 2^(x+2)

-3 0,00195 0,5

-2 0,0156 1

-1 0,125 2

0 1 4

1 8 8

2 64 16

3 512 32

8 0

3 years ago

A realtor makes a commission of $11,400 on a $190,000 house he sells. What is his commission rate?

Reika [66]

So bassically
his commision rate is
x% times 190000=comission
so x% times 190000=11400
divide both sdies by 190000
x%=11400/190000
solve for x percent
11400/190000=114/1900=3/50
x%=3/50
percent means parts out of 100 so x%=x/100
x/100=3/50
3/50=6/100
x/100=6/100
multiply both sdies by 100
x=6

the commision rate is 6%

4 0

3 years ago

Is 46 greater or less than -79

Alona [7]

Answer:

46 is greater than -79

6 0

3 years ago

Read 2 more answers

What is the slope of a line perpendicular to the line whose equation is y = 2x + 5?

anastassius [24]

B = -1/2
I hope that helps