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
SVETLANKA909090 [29]
3 years ago
14

Hope someone help.me​

Mathematics
1 answer:
zvonat [6]3 years ago
7 0

x = r sin θ cos Ф

x² = r² sin² θ cos² Ф

y = r sin θ sin Ф

y² = r² sin² θ sin² Ф

z = r cos θ

z² = r² cos²  θ

x² + y² + z²

= r² sin² θ cos² Ф  +  r² sin² θ sin² Ф +  r² cos²  θ

= r² sin² θ (cos² Ф + sin² Ф) +  r² cos²  θ

= r² sin² θ + r² cos²  θ

= r² (sin² θ + cos²  θ)

= r²       √

You might be interested in
Write a polynomial equation in standard form with the following zeros<br><br> 4,9
Evgen [1.6K]

Answer:

y = x² - 13x + 36

Step-by-step explanation:

Given the zeros x = 4 and x = 9, then the corresponding factors are

(x - 4) and (x - 9)

The polynomial is then the product of the factors

y = (x - 4)(x - 9) ← expand using FOIL

y = x² - 13x + 36

3 0
3 years ago
A water sprinkler sends water out in a circular pattern. How many feet away from the sprinkler can it spread water if the area f
myrzilka [38]

Answer:

The sprinkler can spread water 18 feet away.

Step-by-step explanation:

We are given the following in the question:

Area formed by watering pattern = 1,017.36 square feet

We have to find the how far the sprinkler spread the water.

The sprinkler covers a circular area. We need to find the radius of this circular area to find the how far the sprinkler spread the water.

Area of circle =

A = \pi r^2

where r is the radius of the circle.

Putting values, we get,

1017.36 = 3.14 r^2\\\\r^2 = \dfrac{1017.36}{3.14}\\\\r^2 = 324\\r = \sqrt{324} = 18\text{ feet}

Thus, the sprinkler can spread water 18 feet away.

6 0
3 years ago
Read 2 more answers
Would appreciate it, if anyone could help with this.
Tema [17]
Since they are intersecting lines, you would equal them to each other.
(5x+4)= (8x-71)
-8x. -8x
-3x + 4 = -71
- 4. -4
-3x = -75
Divide 3x by both sides gets you x = 25
6 0
3 years ago
Read 2 more answers
Compare the exponential functions f, g, and h which are shown below.
Nostrana [21]
Hello,
Please, see the detailed answer in the attached files.
Thanks.

5 0
3 years ago
Can you please help me with this one
My name is Ann [436]

Answer:

6x=-60

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Assuming a linear relationship between x and y, if the coefficient of correlation (r) equals -0.75, this means that:
    12·1 answer
  • One way to ensure everyone in population has an equal chance to be in sample is to use____________ sampling
    5·1 answer
  • - In billiards, a rack is used to organize billiard balls at the beginning of the game. Jason is making the wood rack and found
    14·1 answer
  • What is the area of 7 feet by 4 feet
    13·1 answer
  • The scale used on a map is 1:250,000 the distance measures 8.5 centimetres what is the actual distance ?
    5·1 answer
  • 17 Q Graph the inequality in a coordinate plane -y &lt; 3× - 5
    9·1 answer
  • the cost of the cab was $3 for each mile plus $20. Write the equation for the situation and complete the table to find the total
    7·1 answer
  • HELPPPPPPPPPPPPPPP Meeeee
    9·1 answer
  • You have just purchased a car and, to fund the purchase, you borrowed $32,000. If your monthly payments are $615.13 for the next
    12·1 answer
  • Please help! will mark brainlist ​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!