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Lilit [14]
3 years ago
11

A sun's rays are vertical at the point A on a planet. At the point B, which is 2105 miles due north of A, the angle of the sun m

easured to be 7.4°. See the figure. Use this information to approximate the radius and circumference of the planet.
Mathematics
2 answers:
icang [17]3 years ago
8 0

Answer:

  • radius: 1460 mi
  • circumference: 9174 mi

Step-by-step explanation:

If the angle of elevation at point B is 7.4°, then the sun is 90° -7.4° = 82.6° from the vertical. This is the measure of the central angle between the two points. That represents a fraction of a circle that is ...

  82.6°/360° = 413/1800 ≈ 0.229444...(repeating)

The relation between the given distance and the circumference is ...

  0.294444C = 2105 mi

  C = 2105 mi/0.294444 ≈ 9174 mi

The radius of the spherical planet is this divided by 2π:

  r = C/(2π) = 9174 mi/(2π) ≈ 1460 mi

The radius of the planet is about 1460 miles; the circumference is about 9174 miles.

siniylev [52]3 years ago
5 0

Answer:

Sorry i needed the pointś im so sorry

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Х<br> 2x + 24<br> Please help
Jlenok [28]

Answer:

52

Step-by-step explanation:

these equations added together equal 180. so x+2x+24 = 180. add like terms (x+2x=3x) , subtract 24 from both sides, divide by 3 on both sides to get x by itself

6 0
3 years ago
How do i solve thisx/12= 0​
Elis [28]

Answer:

0

Step-by-step explanation:

0÷12=0

The way to figure this problem out is to multiply 0 by 12 and than you get 0.

7 0
3 years ago
Read 2 more answers
That’s the number is written in standard scientific notation?
Nata [24]

Option D: 3.47*10^-7 is the correct answer

Step-by-step explanation:

In order to determine the number written in standard scientific notation, first of all we have to understand how the scientific numbers are written

the scientific numbers are written in the form of:

a*10^n

Here

a is a number between 1 and 10 while the value of n can be only integer (positive or negative)

so,

In the given options:

Option A has a number larger than 10 in place of a so it is not in standard notation

Option B has a number less than 1 in place of a  so it is also not in standard notation

Option C has a number larger than 10 in place of a so it is not in standard notation

Option D is in standard scientific notation as 1<3.47<10 and the power of 10 is integer

Hence,

Option D: 3.47*10^-7 is the correct answer

Keywords: Scientific notation, exponents

Learn more about scientific notation at:

  • brainly.com/question/846474
  • brainly.com/question/833559

#LearnwithBrainly

6 0
3 years ago
Please help! 10 points and brainlyist!!
yarga [219]

Answer:

1.80 in^3

1.0 fluid ounces^3

Step-by-step explanation:

volume of a cone = 1/3 πr²h

π = 3.14

r = 2.2 / 2 = 1.1

h = the value of h can be determined using Pythagoras theorem

The Pythagoras theorem : a² + b² = c²

where a = length

b = base

c =  hypotenuse

1.8² = 1.1² + b²

3.24 = 1.21 + b²

3.24 - 1.21 = b²

2.03

b = √2.03 = 1.42

Volume = 1/3 x 3.14 x 1.21 x 1.42 = 1.80 in^3

1.80 x 0.554 = 1.0 fluid ounces^3

5 0
3 years ago
Sheila buys some boxes of pens, with 20 pens in each box. Which expression represents the total number of pens Sheila bought? 20
Mazyrski [523]
The answer is 20p. P represents the number of boxes she buys and 20 is how many pens are in each box.
7 0
3 years ago
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