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2 years ago

HELP!!! WILL GIVE BRAINLIEST

Mathematics

2 answers:

Gwar [14]2 years ago

4 0

Answer:

Step-by-step explanation:

Makovka662 [10]2 years ago

4 0

Answer:

ok so the answer is 2.4 and btw im back :D

Step-by-step explanation:

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(x⁴ + 3x³ – 2x² + 5) + (2x⁴ – 5x³ + 4x – 15).

olya-2409 [2.1K]

Answer:

$\left(x^4+3x^3-2x^2+5\right)+\left(2x^4-5x^3+4x-15\right)$

$=$ $x^4+3x^3-2x^2+5+2x^4-5x^3+4x-15$

$=x^4+2x^4+3x^3-5x^3-2x^2+4x+5-15$

$=x^4+2x^4-2x^3-2x^2+4x+5-15$

$=3x^4-2x^3-2x^2+4x+5-15$

$=3x^4-2x^3-2x^2+4x-10$

$OAmalOHopeO$

8 0

2 years ago

Find the volume of the solid that lies between planes perpendicular to the x-axis at x = pi/4 and x = 5pi/4. The cross-sections

svp [43]

Answer:

The volume of the solid = π²

Step-by-step explanation:

As per the given data of the questions,

The diameter of each disk is

D = 2 sin(x) - 2 cos(x)

So its radius is

R = sin(x) - cos(x).

The area of each disk is

$= \pi \times(sinx-cosx)^{2}$

$= \pi \times [sin^{2}(x) - 2 sin(x) cos(x) + cos^{2}(x)]$

$= \pi[1-2sin(x)cos(x)]$

$= \pi[1-sin(2x)]$

Now,

Integrate from $x=\frac{\pi}{4}\ \ \ to\ \ \ x=\frac{5\pi}{4}$ , we get volume:

$V=\int_{\frac{\pi}{4}}^{\frac{5\pi}{4}} \pi[1-sin(2x)]dx$

After integrate without limit we get

$V=\pi[x+\frac{cos2x}{2}]$

Now after putting the limit, we get

V = π²

Hence, the required volume of the solid = π²

3 0

3 years ago

Question 7

elixir [45]

Answer:

whts the question 86

Step-by-step explanation:

i dk

8 0

1 year ago

PLEASE ANSWER FULL QUESTION

Komok [63]

Answer:

I don't know the answer !!! :(

8 0

2 years ago

A carpet square is 9inches what’s the area of the carpet square?

AleksAgata [21]

Answer:

The area of the carpet which is square in shape is 81 $inches^2$

Step-by-step explanation:

Given:

side of the carpet square = 9 inches

To Find:

area of the carpet square = ?

Solution:

The area of the carpet = area of the square

we know that the area of the square is

=> side X side

Substituting the side of the square, we get

=> 9 X 9

=> 81 $inches^2$

6 0

2 years ago