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3 years ago

Find the missing side This is due in a hour

Mathematics

1 answer:

loris [4]3 years ago

3 0

Answer:

The Arch is 630 ft tall

Step-by-step explanation:

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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

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

5 0

2 years ago

2. Find the gross monthly income from this job and calculate your monthly take-home pay.

Step2247 [10]

Answer:

you will need to know what's his gross monthly income and multiply by 25%that will give you the amount of taxes withheld and then subtract that from gross monthly income and that will give you Monthly take home pay.

4 0

3 years ago

Who drove faster? Trevor drove 202 miles in 4 hours Maggie drove 330 miles in 6 hours Nev drove 412 miles in 8 hours Juanita dro

Roman55 [17]

Answer:

Maggie

Step-by-step explanation:

So trevor drove 50.5mph bc 202/4

Maggie 330/6 = 55mph

Nev 412/8=51.5mph

Juanita 261/5= 52.2mph

7 0

3 years ago

On a bike ride, calvin starts at home and goes up a long hill for 30 minutes at just 6 mph. at the top, he turns around and ride

omeli [17]

Answer:

Step-by-step explanation:

Calvin's first leg of the trip took 0.5 hr (30 minutes) at 6 mph. That means he travelled (0.5hr x 6 mph =) 3 miles. He travelled 3 miles on the return trip, by definition (same path home). At 18 mph, 3 miles would take (3 miles/18 mph =) 0.1667 hours. That makes a total of 6 miles and (0.5 + 0.1667=) 0.6667 hours.

(6 miles)/(0.6667 hours) = 9 mph is Calvin's average speed for the round trip.

3 0

9 months ago

Read 2 more answers

Jaime hiked for 3 days across an island. He started at the shoreline, which is at an elevation of O feet.

Gre4nikov [31]

Answer: