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padilas [110]
4 years ago
12

What is the product?

Mathematics
1 answer:
k0ka [10]4 years ago
5 0

Answer:

8x² +6x+36xy² + 27y²

Step-by-step explanation:

Expand the following:

(-2 x - 9 y^2) (-4 x - 3)

(-9 y^2 - 2 x) (-4 x - 3) = (-9 y^2) (-4 x) + (-9 y^2) (-3) + (-2 x) (-4 x) + (-2 x) (-3):

-9 (-4) y^2 x - 3 (-9) y^2 - 2 (-4) x x - 3 (-2) x

-9 (-4) = 36:

36 y^2 x - 3 (-9) y^2 - 2 (-4) x x - 3 (-2) x

-3 (-9) = 27:

36 y^2 x + 27 y^2 - 2 (-4) x x - 3 (-2) x

-2 x (-4) x = -2 x^2 (-4):

36 y^2 x + 27 y^2 + -2 (-4) x^2 - 3 (-2) x

-2 (-4) = 8:

36 y^2 x + 27 y^2 + 8 x^2 - 3 (-2) x

-3 (-2) = 6:

Answer: 36 y^2 x + 27 y^2 + 8 x^2 + 6 x

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Allowing 20 % discount on the marked price of an article and levying 15 % VAT. a buyer has to pay Rs 9.200 for the article. Find
nata0808 [166]

Answer:

here I'm confused that whether the selling price is Rs.9,200 or Rs.9.200

any ways you can take the help of below procedure

Step-by-step explanation:

here,

let marked price be X

discount(d)=20%

VAT=15%

SP with VAT= 9200

now,

SP without VAT= SP - VAT of SP

= 9200-15/100 ×9200

= 9200- 1380

=Rs. 1380

again,

SP= MP - D of MP

or,7820= x- 20/100 × x

or, 7820× 100 = 100x- 20x

or,782000=80x

or, 782000/80=X

or, X= 9775.

hence MP is Rs 9775

8 0
3 years ago
Please help and no guessing please I need this.
vodka [1.7K]

Answer:

1. n + 8 = 10

2. \frac{n}{12}= 10

3. 8n - 6 = 34

4. 3(n + 12) = 45

5. No

6. Yes

Step-by-step explanation:

(only for questions 5 and 6)

5. If you substitute in y = 1, you get 1 * 49 = 0 or 49 = 0 which is not true.

6. If you substitute in b = 8, you get:

5(8-3)= 25\\5(5) = 25\\25 = 25

this is true.

7 0
3 years ago
Find the measurement?
aliina [53]

Answer:

HG = 28

Step-by-step explanation:

The midsegment MN is half the sum of the 2 parallel bases, that is

\frac{HG+JF}{2} = MN , that is

\frac{HG+16}{2} = 22 ( multiply both sides by 2 )

HG + 16 = 44 ( subtract 16 from both sides )

HG = 28

3 0
3 years ago
What is the approximate volume of a cone with a height of 11 ft and radius of 3 ft?
nadya68 [22]
Substitute the values of the radius <span>(<span><span>r=3</span>),</span></span><span> the </span>height <span>(<span><span>h=11</span>),</span></span><span> and an approximation of </span>Pi <span>(<span>3.14)</span></span><span> into the </span>formula<span> to find the </span>volume<span> of the </span>cone<span>.
</span><span>V≈+<span>1/3</span>⋅3.14⋅<span>3^2</span>⋅11

</span><span>Simplify.
</span>Write 3.14<span> as a </span>fraction<span> with </span>denominator <span>1.</span><span> 
</span><span>V≈+<span>1/3</span>⋅<span>3.14/1</span></span> <span>

</span>Combine <span>1/3</span><span> and </span><span>3.14/1</span><span> to get </span><span><span>3.14/3</span>.</span><span> 
</span><span>V≈+<span>3.14/3</span></span><span> 
</span>
Replace back in to larger expression<span>. 
</span><span>V≈+<span>3.14/3</span>⋅<span>3^2</span>⋅11</span><span> 
</span>
Divide 3.14<span> by </span>3<span> to get </span><span>1.04666667.
</span><span>V≈+1.04666667⋅<span>3^2</span>⋅11

</span>Raise 3<span> to the </span>power<span> of </span>2<span> to get </span><span>9.
</span><span>V≈+1.04666667⋅9⋅11

</span>Multiply 1.04666667<span> by </span>9<span> to get </span><span>9.42.
</span><span>V≈+9.42⋅11

</span>Multiply 9.42<span> by </span>11<span> to get </span><span>103.62.
</span><span>V≈+103.62

</span>Remove trailing zeros<span> from </span><span>103.62.
</span><span>V≈+103.62</span><span>f<span>t^3

Volume:
</span></span>V≈+103.62ft^3
8 0
3 years ago
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hram777 [196]
Cause you have the slashes and 2/4/5/6/7and 3/4/5/6/7
3 0
3 years ago
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