3 years ago

How many points do the graphs of the equations 6x - 3y = 7 and 12x - 6y = 14 have in common?

1 answer:

7 0

ALL of their points are common. If you multiply each side of the first equation by 2, you'll see that they're both the same line.

You might be interested in

Gnom [1K]

$2x(4-x)^{-1/2}-3(4-x)^{1/2}=(4-x)^{-1/2}\bigg(2x-3(4-x)\bigg)$

We effectively rewrite the equation as

$\dfrac{5x-12}{(4-x)^{1/2}}=0$

In order for the LHS to be defined, we need to restrict $4-x>0$ , or $x$ . Now, the LHS will vanish when the numerator is 0, which happens for

$5x-12=0\implies5x=12\implies x=\dfrac{12}5$

This value is indeed smaller than 4, so the solution is $x=\dfrac{12}5$ .

8 0

2 years ago

Ilya [14]

Answer:

Step-by-step explanation:

Tₙ=n+5

T₅=5+5=10

4 0

2 years ago

STALIN [3.7K]

Answer:

x ,y = 204

Step-by-step explanation:

6 0

2 years ago

kkurt [141]

Answer:

3.6

Step-by-step explanation:

9-0.2(4-7)^3

9-0.2(-3)^3

9 -0.2 (-27)

9-5.4=3.6

7 0

3 years ago

rjkz [21]

Answer: (9,-10) or x=9...y=-10

4 0

2 years ago