1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kirza4 [7]
2 years ago
11

The diameter D of a sphere is 18.6 cm. Calculate the sphere's surface area A

Mathematics
1 answer:
IRINA_888 [86]2 years ago
6 0

Answer:

1086.3 cm²

Step-by-step explanation:

surface are of sphere = πD²

SA = (3.14)(18.6 cm)^2

SA = 1086.3 cm²

You might be interested in
Calculate the noon sun angles for new orleans, usa and helsinki, finland on september 22. in the answer below, new orleans answe
Otrada [13]
<span>We need to calculate noon sun angle. Noon sun angle is an angle at which sun-rays fall at noon on a given date.
</span>On September 22, the sun’s rays form a 90° angle at noon at the equator.

Formula for calculating noon sun angle is:

Noon_sun_angle = 90° - Zenith angle

We have complementary angles so we need to substract zenith angle from 90°.

The zenith angle is the distance between subsolar point (point where sun is at 90°) and the latitude of an observer. In our case this angle will have same value as latitude because subsolar point is at equator 0°. If our latitude and subsolar point are at same hemisphere we substract values. Otherwise we add values.

New Orleans, USA
Latitude = 30°
Noon_sun_angle = 90° - 30° = 60°

Helsinki, Finland
Latitude = 60°
Noon_sun_angle = 90° - 60° = 30°
4 0
3 years ago
Read 2 more answers
Factor completely 50a2b5 − 35a4b3 + 5a3b4
Andreyy89

The complete factorisation of 50a²b⁵ − 35a⁴b³ + 5a³b⁴ is 5a²b³(10b² - 7a² + ab)

<h3>How to factorise?</h3>

Factorisation is the process of writing an expression as a product of two or more common factors.

The expression is written as a product of several factor.

Therefore,

50a²b⁵ − 35a⁴b³ + 5a³b⁴

Hence, the complete factorisation is as follows;

5a²b³(10b² - 7a² + ab)

learn more on factorisation here: brainly.com/question/2272501

#SPJ1

7 0
1 year ago
Sulfur powder (S) and oxygen gas (02) undergo a
aleksandr82 [10.1K]

Answer:

It’s a

Step-by-step explanation:

8 0
3 years ago
Use Multistep Pythagorean Theorem to answer
uranmaximum [27]

Answer:

√5

Step-by-step explanation:

I think that is the answer I never come to such a question of changing things to radical form but I guess 5 cannot be multiplied by a number such that it has a square root so the answer is that√5

6 0
2 years ago
Number 10 :Find side X ​
Rina8888 [55]

Answer:

I think I got it right! I think it's x=4

if not I'm sorry :(

5 0
3 years ago
Other questions:
  • Which values of m and b will create a system of equations with no solution? Check all that apply.
    10·2 answers
  • I have no idea how to do this
    5·1 answer
  • The standard size of a rectangular placemat is 14 inches by 16 inches. How much fabric is needed to make 6 standard placemats?
    10·2 answers
  • Express this number in scientific notation .0002077
    10·2 answers
  • OMG PLS HELP WITH THIS IM PANICKING OMG I GOT A F IN MATH MY MOM JUST YELLED AT ME IM CRYING PLS HELP WITH THS- PLSS TELL ME WHA
    14·2 answers
  • 7. Find the complex conjugate of 3i+4.
    13·1 answer
  • What is the equation of the blue line below?<br> HELP
    6·1 answer
  • Plss help me!! Il do anything!! Pls follow the instructions on the paper
    13·1 answer
  • the lengths of the sides of a triangle are in the extended ratio 7:8:9 the perimeter of the triangle is 96cm. what are the lengt
    9·2 answers
  • Evaluate.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!