Answer:
it is true
Step-by-step explanation:
We can demonstrate this by contradiction.
First choosing a random rational and assuming that exist two ways to represent this rational. Call that rational x, a, b and a', b ' the couples of relatively prime to express x.
Then we have
Isolating a:
a is an integer and a' is a relatively prime with b', for this reason b has to be a factor of b'. Suppose this factorization b'=nb, replacing it:
But now we have that n is a factor of a and is a factor of b, it means that a and b are not relatively prime, that is a contradiction with our premises. The sentence is true.
And referring to the positive denominator. If we want to express a positive rational the denominator and numerator will be both positive and if is a negative one we choose a positive denominator and a negative numerator.
Answer:
Step-by-step explanation:
The answer is Choice (A)
to find the exact middle between the two points, we must find the midpoint in the x-direction and the y-direction.
In the x-direction, the middle of A and C is at (a+b)/2
In the y-direction, the middle of A and C is c/2
Hope that helps!
Answer:
x=1 or x=-2 or x=3
Step-by-step explanation:
your answer is most likely one of the three
sorry if its incorrect :9
Answer:
not sure
Step-by-step explanation:
Given equation : -6x+3y=18.9.
We need to find x and y-intercepts.
<em>In order to find the x-intercept, we need to plug y=0 and solve the equation for x.</em>
Plugging x=0 in given equation, we get
-6(0)+3y=18.9
0 +3y = 18.9
3y = 18.9
Dividing both sides by 3, we get
y = 6.3
<em>In order to find the y-intercept, we need to plug x=0 and solve the equation for y.</em>
Plugging y=0 in given equation, we get
-6x+3(0)=18.9
-6x = 18.9
Dividing both sides by -6, we get
x = -3.15.
<h3>Therefore, x-intercept is -3.15 and y-intercept is 6.3.</h3>
We could write them as coordinates
<h3>x-intercept (-3.15, 0) </h3><h3>y-intercept (0, 6.3).</h3>
