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icang [17]
2 years ago
12

-9x²(x²+2x²y - 3y²) Simplify

Mathematics
2 answers:
yKpoI14uk [10]2 years ago
4 0
<h2>Your answer is:</h2>

−9x^4−18x^4y+27x^2y^2

<h3><u><em>HAVE A NICE DAY!</em></u></h3>
Dvinal [7]2 years ago
3 0

Answer:

=−18x^4y−9x^4+27x^2y^2

Step-by-step explanation:

(−9x^2)(x^2+2x^2y−3y^2)

=(−9x^2)(x^2+2x^2y+−3y^2)

=(−9x^2)(x^2)+(−9x^2)(2x^2y)+(−9x^2)(−3y^2)

=−9x^4−18x^4y+27x^2y^2

=−18x^4y−9x^4+27x^2y^2

---

Hope I helped! Have a great day :)

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The distance formula, d= √ (x2-x1)^2+(y2-y1)^2, is the key element in the proof of which of the following?
Aleks04 [339]

I believe the answer is:

C. The law of sines

<em>Hoped this helped!</em>

7 0
3 years ago
From the top of an apartment building, the angle of depression to a car parked on the street below is 32 degree. The car is park
Citrus2011 [14]

Answer: The height of the building = 56 feet.

Step-by-step explanation:

Let AB be the height of the building and BC be the distance of the car from the building on the ground.

Now , ∠ C = 32°   [Alternate interior angles ]

According to the trigonometry,

\tan x =\dfrac{Perpenicular}{base}\\\\\Rightarrow\ \tan 32^{\circ} =\dfrac{AB}{90}\\\\\Rightarrow\ 0.6248693519=\dfrac{AB}{90}\\\\\Rightarrow\ AB = 90\times 0.6248693519=56.238241671\approx56

Hence, the height of the building = 56 feet.

6 0
3 years ago
Jacob went to the gas station with 17.70 he brought a drink for 2.90 and he wanted to spend the rest of the money and a bag of c
nikdorinn [45]

Answer:

17.70-2.90=14.80

14.80/1.85=8

He could buy a maximum of 8 chip bags.

bags of chips = x

17.70-2.90/1.85≥x

4 0
3 years ago
Pls pls help asap pls​
Stolb23 [73]

Answer:

Step-by-step explanation:

3y+7=2x

3y=2x-7

y=(2/3)x-7/3

when parallel, the y=ax+b, the a keeps the same

so it‘s y=(2/3)x-a

and it pass (2,6), so 6=(2/3)*2 -a

6=4/3-a

-a=(18-4)/3

-a=14/3

a=-14/3

6 0
3 years ago
Read 2 more answers
Is each line parallel, perpendicular, or neither parallel nor perpendicular to a line whose slope is 2/5?
Gnesinka [82]
Parallel: line p with slope 2/5
Perpendicular: line n with slope -5/2
the other two would be neither.
3 0
3 years ago
Read 2 more answers
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