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2 years ago

Solve and explain (x^2+2xy+y^2)(x+1)

Mathematics

2 answers:

Sergeeva-Olga [200]2 years ago

6 0

Answer:

answer would be C.

Step-by-step explanation:

mUsing the distributive property.

nikitadnepr [17]2 years ago

5 0

answer is A

x^3 + 2x^2y + x^2 + y^2 + xy^2

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-4 + 4 Same signs? Different sign? Add/Subtract?

marin [14]

Answer:

Step-by-step explanation:

-4 is negative 4 witch is less then 4. -4 +4 =0

4 0

3 years ago

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Which polygon is a concave octagon?

Bezzdna [24]

The polygon in option 3 is not octagon at all, it is heptagon (or 7-sided polygon).

A convex octagon has no angles pointing inwards. More precisely, no internal angles can be more than 180°.

When some internal angle is greater than 180°, it is concave.

In option 2 you can see that one angle is pointing inward, then this octagon is concave.

Answer: correct choice is B.

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3 years ago

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A man sells sugarcane juice in 200ml per one cup. How many cups of sugarcane juice can he dispense from his big rectangular tank

kozerog [31]

Answer:

702

Step-by-step explanation:

multiply 65*40*54

equals 140400

it conversion cm cube is equal to ml

140400/200

it equals 702 cups

4 0

3 years ago

Which of the following equations has no solution?

liubo4ka [24]

Answer:

the last one

3 0

3 years ago

Amelia launched her science fair rocket, and then backed away. The path of the rocket is given by the equation below, where y is

Mamont248 [21]

Answer:

1)The rocket hit the ground at $x = \frac{5}{4}$

2)The maximum height of the rocket = 12.468 feet

Step-by-step explanation:

Step(i):-

Given equation

y = -2 x² + 5 x + 7 ...(i)

Differentiating equation (i) with respective to 'x' , we get

$\frac{dy}{dx} = -2( 2x) +5(1) = -4x +5$

Equating zero

$\frac{dy}{dx} = 0$

⇒ -4 x +5 =0

⇒ -4 x = -5

⇒ $x = \frac{5}{4}$

The rocket hit the ground at $x = \frac{5}{4}$

Step(ii):-

$\frac{dy}{dx} = -4x +5$ ...(ii)

Again differentiating equation (ii) with respective to 'x' , we get

$\frac{d^{2} y}{dx^{2} } = - 4(1)$

The maximum height at x = $\frac{-5}{4}$

y = -2 x² + 5 x + 7

$y = -2 (\frac{5}{4})^{2} + 5 (\frac{5}{4} ) + 7$

$y = \frac{-2(25)+ 25 (16)+7(64)}{64}$

$y = \frac{798}{64} = 12.468 feet$

The maximum height of the rocket = 12.468 feet

4 0

3 years ago