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2 years ago

Find the area of the prism 14 in. 4 in. 9in.

Mathematics

1 answer:

RSB [31]2 years ago

8 0

Answer:

504 in cubed

Step-by-step explanation:

I am assuming this is a rectangular prism, since you did not show a picture.

l x w x h

14 x 4 x 9

14 x 36

504

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Which is bigger 2/3 or 1/3?

Lyrx [107]

2/3 is bigger than 1/3......TO CHECK this answer 2/3=66% or .66 and 1/3=33% or .33

Therefore, 2/3(66%) is greater than 1/3(33%)

2/3>1/3

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3 years ago

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4) A window is in the form of a rectangle surmounted by a semicircle. The rectangle is of clear glass, whereas the semicircle is

lisov135 [29]

Answer:

l=0.1401P\\

w =0.2801P

where P = perimeter

Step-by-step explanation:

Given that a window is in the form of a rectangle surmounted by a semicircle.

Perimeter of window =2l+\pid/2+w

$P= 2l+3.14 (w/2)+w$

Or $P = 2l+2.57w\\l = \frac{P-2.57w}{2}$

To allow maximum light we must have maximum area

Area = area of rectangle + area of semi circle where rectangle width = diameter of semi circle

$A=lw +\pi \frac{w^2}{8}$

$A=lw +\pi \frac{w^2}{8}\\A=w*\frac{P-2.57w}{2}+0.3925w^2\\2A= Pw-2.57w^2+(0.785w^2)\\2A' = P-5.14w+1.57 w\\2A" =-5.14+1.57$

Hence we get maximum area when i derivative is 0

i.e. $P-5.14w+1.57 w=0\\3.57w =P\\w = \frac{P}{3.57} =0.2801P$

$l = \frac{P-2.57w}{2}\\l = 0.1401P$

Dimensions can be

$l=0.1401P\\w =0.2801P$

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3 years ago

Plz help!

Thepotemich [5.8K]

Answer:

Step-by-step explanation: -13 to 7 think about that. We have to add 13 to make it 0. Then we add 7. So 13 plus 7 is 20. Enjoy :)

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3 years ago

Evaluate using the order of operations ( 8/9 - 1/3) x 2/3

Korvikt [17]

(8/9-3/9)*2/3=5/9*2/3=10/27

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3 years ago

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Tracy deposited $59 into a bank account that earned 3.5% simple interest each year.

AnnyKZ [126]

Answer:

Step-by-step explanation:

1) Tracy:

P =$ 59 ; r =3.5% ; T = 12 years

SI = PrT/100

= 59 * 3.5 * 12 /100

= $24.78

Amount Tracy that will be after 12 years in her account = $ 59 +$24.78

= $83.78

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3 years ago