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3 years ago

PLEASE HELP !

Mathematics

2 answers:

nasty-shy [4]3 years ago

8 0

Answer:

Step-by-step explanation:

(A)

1 big rectangle-2 corner triangles

(B)

24 * 11 = 264 square feet the triangles

11-7

= 4

24 -14

=10

1/2 * 4 * 10

= 20

24-20 by 11-6

=1/2 * 4 * 5 =10

=264 - (20+10)

= 264 - 30

=234 square feet

katovenus [111]3 years ago

7 0

The similar polygon is a rectangle with dimensions of 11ft and 24ft.

to find the area you can use the area of the rectangle and subtract the two small triangles area. the one in the lower left has legs of 10ft and 4ft so the area is 20. the top right has legs of 4ft and 5ft so the area is 10.
the area of the rectangle is 264 because 11x24. subtract 20 and 10 from 264 to get

234 feet^2 which is the area of the polygon.

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11,17,18,19,23,21,14 what is the median

Tema [17]

The median is 18.
Hope this helped!

8 0

3 years ago

Read 2 more answers

A wind turbine is located at the top of a hill where the wind blows steadily at 12 m/s, and stands 37 m tall. The air then exits

marta [7]

Answer:

Power generated = 4.315 kW

Step-by-step explanation:

Given,

speed of wind when enters into the turbine, V = 12 m/s

speed of wind when exits from the turbine, U = 9 m/s

mass flow rate of the wind, m = 137 kg/s

According to the law of conservation of energy

Energy generated = change in kinetic energy

Since, the air is exiting at same elevation. So, we will consider only kinetic energy.

Energy generated in one second will be given by,

$E\ =\ \dfrac{1}{2}.mV^2-\dfrac{1}{2}.m.U^2$

$=\ \dfrac{1}{2}\times 137\times (12)^2-\dfrac{1}{2}\times 137\times (9)^2$

=4315.5 J

= 4.315 kJ

So, energy is generated in one second = 4.315 kJ

Power generated can be given by,

$P\ =\ \dfrac{\textrm{energy generated}}{time}$

And the energy is generated is already in per second so power generated will be 4.315 kW.

8 0

3 years ago

-| -8 | |-(-8) are they equal ? Or which one is more ?

satela [25.4K]

Answer:

-| -8 | is less than |-(-8)|

Step-by-step explanation:

-| -8 | =-8

|-(-8)| =8

they are not equal

-| -8 | is less than |-(-8)|

5 0

4 years ago

Imagina que además de su trabajo en la bi biblioteca ,lizzie planea trabajar como voluntaria 3 horas por semana en un refugio de

Tamiku [17]

Answer:

(20 + 5w) + (10 + 3( w - 1 )) = 27 +8w

Step-by-step explanation:

¡espero que esto ayude!

3 0

3 years ago

Allison is rolling her hula hoop on the playground. The radius of her hula hoop is 35 cm.

Ivan

Answer:

The hula hoop rolls 879 \text{ cm}879 cm.

Step-by-step explanation:

8 0

3 years ago