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3 years ago

The Earth has a diameter

Mathematics

1 answer:

mrs_skeptik [129]3 years ago

4 0

Answer:

L = 24,873.6 miles

Step-by-step explanation:

Length of the Circumference

Given a circle of radius r, the length of the circumference, or line surrounding the shape is:

$L =2\pi\cdot r$

The Earth has a diameter of 7,917.5 miles. The radius is half the diameter:

r=7,917.5/2=3,958.75 miles

Assuming a plane flies around the equator at ground level, the distance it would travel is:

$L =2\pi\cdot 3,958.75\ miles$

L = 24,873.6 miles

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Our pool is twice as long as it is wide and is surrounded by a walkway of uniform width of 1 foot. The

Zigmanuir [339]

Step-by-step explanation:

x=width of pool

2x=length of pool

the dimensions of the rectangle forming the walkway and the pool are x+4 and 2x+4

the area of this rectangle minus the area of the pool is 196 square feet

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2x^2+4x+8x+16-2x^2=196

combine similar terms

12x+16=196

12x=196-16

12x=180

x=180/12

x=15 feet is the width of the pool

check: 34*19-30*15=196

646-450=196

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3 years ago

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3 years ago

If y= (2x^2+x)^3 +(x-1) /(1-x). find dy dx

Mrrafil [7]

Answer:

Step-by-step explanation:

y=(2x²+x)³+(x-1)/(1-x)

=(2x²+x)³+(x-1)/-(x-1)

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3 years ago

If EG=67, then EF=? There is a picture below

ikadub [295]

If EG=67 we have (3x+7)+(5x-4)=67
let's simplify
$67 = (3x + 7) + (5x - 4) \\ 67 = 8x + 3 \\ 64 = 8x \\ \frac{64}{8} = x \\ 8 = x$
now we know x is 8 we can use this to find EF
since EF=3x+7
$3(8) + 7 = 24 + 7 = 31$
so we have EF is 31!
if.you like my answer please rate Brainliest

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3 years ago

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What is 59m • tan 46

kotykmax [81]

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3 years ago