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2 years ago

Can y'all please help me with this? Thanks.

Mathematics

1 answer:

kondor19780726 [428]2 years ago

3 0

Answer:

j : 7327

Step-by-step explanation:

Split the figure into three parts 1 cylinder and hemispheres.

find the volume of each part and then in the end add them

Vol of cylinder =

$\pi \times r {}^{2} \times h \\ 3.14 \times 10 \times 10 \times 10 \\ = 3140 \\$

Find the volume of one hemisphere=

$= \frac{2}{3} \pi \times r {}^{3} \\ 2093.33$

Vol of 2 hemispheres = 2×2093.33

= 4186.66667

Total volume= 3140 + 4186.6667 = 7326.66

= 7327

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What is the area of this polygon?

Cerrena [4.2K]

Answer:

<h2>39 units</h2>

Solution,

Total area=Area of ABCD+ Area of triangle ADE

 $(ab \times bc) + \frac{1}{2} \times ad \times ef \\ = (5 \times 6) + \frac{1}{2} \times 6 \times 3 \\ = 30 + 9 \\ = 39 \: {units}^{2}$ 

hope this helps...

Good luck on your assignment...

7 0

3 years ago

During the summer, Shane earns $450 every two weeks from being a lifeguard. He saves $125 from each paycheck. According to the t

DanielleElmas [232]

Answer:

5 to 18 ; 1 to 225

Step-by-step explanation:

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4 0

3 years ago

Read 2 more answers

taurus [48]

Answer:

$x^2 - 2x + 10$ , option B

Step-by-step explanation:

Complex numbers:

The most important relation that involves complex numbers is given by:

$i^2 = -1$

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})$ , given by the following formulas:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

In this question:

The solutions are:

$x_1 = 1 - 3i, x_2 = 1 + 3i$

We have to find the polynomial. All option have $a = 1$ . So

$(x - (1 - 3i))(x - (1 + 3i)) = x^2 - x(1 + 3i) - x(1 - 3i) + (1 - 3i)(1 + 3i) = x^2 - x -3ix - x + 3ix + 1^2 - (3i^2) = x^2 - 2x + 1 - 9i^2 = x^2 - 2x + 1 - 9(-1) = x^2 - 2x + 10$

The correct answer is given by option b.

6 0

3 years ago

Margie needs 7 ticket to the same soccer game.

Ivahew [28]

Do 3 divided by 53 to find the cost of one ticket and then multiply the that number with 7

7 0

3 years ago

Read 2 more answers

Find the measure of angle A. 66° x +49 x+83

liubo4ka [24]

Step-by-step explanation:

Since , internal sum of angle of triangle is 180°

So,

66 + x +49 + x+83 = 180

or, 198 + 2x = 180

or, 2x = 180 -198

or, 2x = -18

hence, x = - 9

Now angle A = x + 49

= (-9) + 49

= 40

Hence measure of angle A is 40°.

8 0

2 years ago

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Can y'all please help me with this? Thanks.​

Can y'all please help me with this? Thanks.