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Lemur [1.5K]
3 years ago
12

Please help. Wrong answer will be reported

Mathematics
1 answer:
marissa [1.9K]3 years ago
3 0

top:

(2x - 3y)^2

= 4x^2 - 12xy + 9y^2

bottom:

(3y - 2x)^2

= 9y^2 - 12xy + 4x^2

= 4x^2 - 12xy + 9y^2 (same as top)

so

(4x^2 - 12xy + 9y^2) / ( 4x^2 - 12xy + 9y^2) = 1

Ava is not correct. If you look at the denominator on her work:

[-(2x – 3y)]^2

= [(-1 )(2x – 3y)]^2

= (-1)^2 (2x – 3y)^2

= (2x – 3y)^2

so (2x – 3y)^2 / (2x – 3y)^2 = 1

The correct answer is 1

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What is 5/2 divided by 2/5
Len [333]

Answer: 6 and 1/4

Step-by-step explanation: To solve this problem, we first leave 5/2 alone so don't do anything to it.

For our second fraction, we want to switch the numerator and the

denominator which means find the reciprocal of it.

The reciprocal of 2/5 is just the opposite of it when

you flip it and it's going to be 5/2.

Because we did the opposite there, we need to do the opposite

of division and the opposite of division is multiplication.

So now we have 5/2 × 5/2 which is 25/4 or 6 and 1/4.

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3 years ago
Tm=gl and md=ls What additional information is necessary to show that by SSS
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Since the problem is to prove that the two triangles are congruent by applying SSS (side -side -side) congruence theorem, the missing or the additional information that can be shown in the solution is the third side of both triangles must be also equal and congruent. Since in SSS theorem, all sides of a given triangle must be congruent to the opposite three sides of the second triangle.
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3 years ago
What are the independent and dependent variables in the relationship?
Sindrei [870]

w is the width and it is the independent variable. You can pick any positive whole number you want (within reason of course; you can't go to infinity or go beyond some set boundary). Whatever you picked for w, the expression 2w-5 will be dependent on it. So the length is dependent on the width.

For instance, if the width is w = 10 feet, then 2w-5 = 2*10-5 = 20-5 = 15 feet is the length. The choice of 10 feet for the width directly affects the length being 15 feet.

5 0
3 years ago
The volume of the rectangular pyramid is 840 cubic feet.
sergiy2304 [10]

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23232

Step-by-step explanation:

323233232232

7 0
3 years ago
A line with a slope of -2/5 that passes through the point (-10,8)
slamgirl [31]

Step-by-step explanation:

m =  -  \frac{2}{3}  \\ ( - 10 ,\: 8) = (x_1,y_1)

y-y_1=m(x-x_1)

Plug in the values into the equation

y - 8 =  -  \frac{2}{3} (x - ( - 10)) \\ y - 8 =  -  \frac{2}{3}( x + 10) \\

y - 8 =  -  \frac{2}{3} x  -  \frac{20}{ 3 }  \\ y =  -  \frac{2}{3} x -  \frac{20}{3}  + 8 \\

y =  -  \frac{2}{3} x +  \frac{4}{3}

To solve for x-intercept , Arrange the values in

ax + by + c = 0

=

-  \frac{2}{3} x - y +  \frac{4}{3}  = 0

To find x-intercept .let y = 0 in the above equation

-  \frac{2}{3} x - y +  \frac{4}{3}  = 0 \\  -  \frac{2}{3} x - 0 +  \frac{4}{3}  = 0 \\

-  \frac{2}{3} x +  \frac{4}{3}  = 0 \\  -  \frac{2}{3} x =  -  \frac{4}{3}

Solve for x ;

x = 2

To find y intercept , let x = 0

and solve for y .

I hope it helps <3

7 0
3 years ago
Read 2 more answers
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