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scoundrel [369]
3 years ago
11

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

Mathematics
1 answer:
bazaltina [42]3 years ago
8 0

1)

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

V=(3.14)(1600)(1.3)

V=5024(1.3)

V=6531.2

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

3)

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

4)

Meters to Centimeters: 0.4*100=40

45*40*50=90000

Centimeters to Meters: 90000/100=900

Volume=900m^3

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Answer:

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Round off to nearest cent as

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3 years ago
Choose the function whose graph is given by:
wolverine [178]

<em>Greetings from Brasil...</em>

In a trigonometric function

F(X) = ±UD ± A.COS(Px + LR)

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standard cosine graph with 1 unit shift to the left

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standard cosine graph with 1 unit down

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7 0
3 years ago
Read 2 more answers
Please help simplify with steps 
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Remember that you can always multiply or divide BOTH the numerator and denominator
of the fraction by anything you want to.  You just have to do exactly the same to both of
them.

The way to simplify a fraction is to divide both the numerator and denominator by their
greatest common factor.

Do you see all of those 'x's on the top and bottom ?  The top and bottom can
both be divided by x-cubed.

<u>Numerator:</u>
Divide (-4³) by x³, and you have (-4) left.

<u>Denominator:</u>
Divide (x³ - 2x⁴) by x³, and you have (1 - 2x) left.

So, the simplified fraction is [  -4 / (1 - 2x)  ].

That's a perfectly good answer, but you could make it look a little prettier
if you multiply the top and bottom both by -1 .  Then it would be

                             4 / (2x - 1) .

Either one is fine.
8 0
3 years ago
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