3 years ago

(3x)/(7y)-:(9z)/(19y^(2))

Mathematics

1 answer:

bezimeni [28]3 years ago

6 0

I think this is the answer, though you might need to recheck it

You might be interested in

A file server costs $30,000

Digiron [165]

Answer:

30,000 - 20% =24,000 year 1

24,000 - 20% =18,000 year 2

18,000 - 20% =12000 year 3

12,000 is your answer B)

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Solve the simultaneous equation y-2x+1=0 and 4x^2+3y^2-2xy=7

Lapatulllka [165]

The first equation is $y-2x+1=0$

$y=2x-1$ (Equation 1)

The second equation is $4x^{2}+3y^{2}-2xy=7$ (Equation 2)

Putting the value of x from equation 1 in equation 2.

we get,

$4x^{2}+3(2x-1)^{2}-2x(2x-1)=7$

$4x^{2}+3(4x^{2}+1-4x)-4x^{2}+2x=7$

by simplifying the given equation,

$12x^{2}-10x-4=0$

$6x^{2}-5x-2=0$

Using discriminant formula,

$D=b^{2}-4ac$

$D=25-4 \times 6 \times -2 = 73$

Now the formula for solution 'x' of quadratic equation is given by:

$x=\frac{-b+\sqrt{D}}{2a} and x=\frac{-b-\sqrt{D}}{2a}$

$x=\frac{5+\sqrt{73}}{12} and x=\frac{5-\sqrt{73}}{12}$

Hence, these are the required solutions.

8 0

3 years ago

Pls halp me TwT im l

kakasveta [241]

Answer:

22 is the answer but which country are you from

6 0

4 years ago

A coffee maker is $49.99. During Black Friday sales, you got it for $33.55.What was the Black Friday sale? Round to the nearest

Dmitry [639]

Answer:

i do not know what it is sorry

7 0

3 years ago

When collecting data from real-world problems, it is always best to represent

Serhud [2]

Answer:False

Step-by-step explanation:You can use any chart

8 0

3 years ago

Read 2 more answers