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VladimirAG [237]

3 years ago

14

Find the area of the shape

1 answer:

bogdanovich [222]3 years ago

6 0

First you find the area of the square which is base x height (2x2) = 4 then you find the area of a circle which is pi R squared so you were do 2÷2 because radius is half the diameter so The formula that would be 3.14x1^2 and the answer is 3.14 then you add 4+3.14 which then equals 7.14in

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What's the answer for (2+i)(i+2i)?

slava [35]

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{3 {i}^{2} + 6i}}}}}$

Step-by-step explanation:

$\sf{(2 + i)(i + 2i)}$

Use the distribute property to multiply each term of the first binomial by each term of the second binomial.

⇒ $\sf{2(i + 2i) + i(i + 2i)}$

⇒ $\sf{2i + 4i + {i}^{2} + 2 {i}^{2} }$

Collect like terms

⇒ $\sf{3 {i}^{2} + 6i}$

Hope I helped!

Best regards!

4 0

4 years ago

HELP PLZ<br><br> What is the shape of the following cross section????

jasenka [17]

Answer:

Triangle

Step-by-step explanation:

Look at the shape of the red part

8 0

4 years ago

Read 2 more answers

Jeremy drew a polygon with four right angles and four sides with the same length name all the polygons that he could have drawn

jeka94

Square is the only possible answer

7 0

3 years ago

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Elina [12.6K]

Answer:

404.09x cm³ (to 5 s.f.),

where x is the unknown height of the shape.

Step-by-step explanation:

Volume of the shape

= base area × height

= (large semicircle- small semicircle) × thickness of shape

Area of circle= $\pi {r}^{2}$

Area of semicircle= $\frac{1}{2} (\pi)( {r}^{2} )$

Diameter of small circle= 14

Radius= diameter ÷2

radius= 14 ÷2

radius = 7 cm

Area of small semicircle

$= \frac{1}{2} (\pi)( {7}^{2} ) \\ = \frac{49}{2} \pi$

Radius of large semicircle

= 35 ÷2

= 17.5 cm

Area of large semicircle

$= \frac{1}{2} (\pi)( {17.5}^{2} ) \\ = \frac{1225}{8} \pi$

Base area of shape

$= \frac{1225}{8}\pi - \frac{49}{2} \pi \\ = \frac{1029}{8} \pi$

Since the height if the shape is not given, I'm afraid I cant help you find the volume.

Let the height of the shape be x cm.

Volume of shape= $\frac{1029x}{8} \pi \: cm^{3}$

3 0

3 years ago

I need help pleaseeeeeeeeeeeeeeeee!!!!!!!!!!!!!!!!!!!!!!!!

liq [111]

Answer:

2/12

Step-by-step explanation:

You have to divide 2/3 by 4 which is the same as multiply 2/3 with 1/4.

This will give you 2/12

3 0

2 years ago

Read 2 more answers