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3 years ago

Hi, I'm struggling with these Areas & Perimeters.

Mathematics

1 answer:

bazaltina [42]3 years ago

8 0

V=(3.14)(40^2)(1.3)

V=(3.14)(1600)(1.3)

V=5024(1.3)

V=6531.2

Circumference of semicircle: (2*3.14*17)/2=53.38

CM to M: 4000/100=40, 700/100=7

40+10+7+34+53.38+33+68+10=255.35

Perimeter=255.35m

Area of semicircle: (3.14*17^2)/2=453.73

40*10=400m^2

68*33=2244m^2

400+2244+453.73=3097.73

Area=3097.73m^2

100*75=7500

Area of semicircle: (3.14*25^2)/2=981.25

7500-981.25=6518.75

Area of car park not including the arena=6518.75m^2

Meters to Centimeters: 0.4*100=40

45*40*50=90000

Centimeters to Meters: 90000/100=900

Volume=900m^3

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A rectangular tank is 76cm long ...50cm wide and 40cm high....how many litres of water can it hold

cricket20 [7]

Answer:152 litres
Steps:76cm×50cm×40cm
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3 0

1 year ago

In ΔVWX, the measure of ∠X=90°, WX = 8.3 feet, and XV = 2.5 feet. Find the measure of ∠W to the nearest tenth of a degree.

kiruha [24]

Answer:

16.76°

Step-by-step explanation:

In ΔVWX, the measure of ∠X=90°, WX = 8.3 feet, and XV = 2.5 feet.

We want to find the measure of <W.

We know side length that is adjacent and opposite to <W.

We can use the tangent ratio, to find the measure of <W.

The tangent ratio is opposite over hypotenuse.

$\tan(m \angle \: w) = \frac{2.5}{8.3}$

$\tan(m \angle \: w) = 0.301$

Take tangent inverse to get:

$m \angle \: w= { \tan}^{ - 1} (0.301)$

$m \angle \: w=16.76 \degree$

7 0

2 years ago

What is 12/24 - 10/23

Elodia [21]

The LCD of 24 and 23 is 552, so 276/552 - 240/552 = 36. After simplifying 36/552, you get 3/46 and that is your answer.

4 0

1 year ago

If the perimeter of a square is 236 inches, how long is each side?

Degger [83]

Answer:

59 inches

Step-by-step explanation:

a square has 4 equal sides

if the sum of all sides(perimeter) is 236 you can do the inverse of that and divide by 4

so your answer should be 59

5 0

3 years ago

Read 2 more answers

If x+y=10 and x-y =6 what is the answer of x cube - y cube fast

AfilCa [17]

Answer:

x+y=10 which means that x=10-y

Replace 10-y in the other equation which gives you:

10-y-y=6

10-2y=6

-2y=-4

y=2

Replace 2 in any of the 2 equations same answer for both:

x+y=10

x+2=10

x=8

So,

${x}^{3} - y^{3}$

$= {8}^{3} - {2}^{3}$

=512-8

=504

Hope this helps!

4 0

1 year ago