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
Zepler [3.9K]
2 years ago
7

Mr. Jones wants to add a cement path around his new pool. The pool has a radius of 7 feet. The cement path will be 1 foot wide a

nd
go all the way around the pool. What is the square footage of the path?
Mathematics
1 answer:
Aleonysh [2.5K]2 years ago
7 0

The square footage of the path is 47.1 ft²

The area of a circle is:

A = πr²

Where r is the radius of the circle.

Let us assume that the pool is a circle.

Given that the pool has a radius (r₁) of 7 feet and a path 1 foot wide would go round the pool.

Radius of pool and cement path (r₂) = 7 ft + 1 ft = 8 ft.

The square footage of the path =  πr₂² - πr₁² = π*8² - π * 7² = 47.1 ft²

Hence The square footage of the path is 47.1 ft²

Find out more at: brainly.com/question/23328170

You might be interested in
What is the most precise term for quadrilateral ABCD with vertices A(1,2) B(2,6) C(5,6) D(5,3)?
Luden [163]

Answer:

This is a kite!

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A company is designing a new logo involving 2 circles. What is the area of the shaded portion between the 2 circles? (Use π = 3)
Advocard [28]
Area of shaded portion = area of circle 1 - circle 2
Pi r*2 - pi R*2 =
Pi (r*2 -R *2 ) = 9*2 - 5*2 = (pi)81- 25= 56 x 3 = 168
8 0
3 years ago
The point (Negative StartFraction StartRoot 2 EndRoot Over 2 EndFraction, StartFraction StartRoot 2 EndRoot Over 2 EndFraction)
sveticcg [70]

The values of cosine Ф and cotangent Ф are \frac{-\sqrt{2} }{2} and -1

Step-by-step explanation:

When a terminal side of an angle intersect the unit circle at

point (x , y), then:

  • The x-coordinate is equal to cosine the angle between the positive part of x-axis and the terminal side
  • The y-coordinate is equal to sine the angle between the positive part of x-axis and the terminal side
  • If x and y coordinates are positive, then the angle lies in the 1st quadrant
  • If x-coordinate is negative and y-coordinate is positive, then the angle lies in the 2nd quadrant
  • If x and y coordinates are negative, then the angle lies in the 3rd quadrant
  • If x-coordinate is positive and y-coordinate is negative, then the angle lies in the 4th quadrant

∵ The terminal ray of angle Ф intersects the unit circle at point (\frac{-\sqrt{2} }{2},\frac{\sqrt{2} }{2})

- According to the 1st and 2nd notes above

∴ cosФ = x-coordinate of the point

∴ sinФ = y-coordinate of the point

∵ The x-coordinate of the point is negative

∵ They-coordinate of the point is positive

- According the the 4th note above

∴ Angle Ф lies in the 2nd quadrant

∵ x-coordinate = \frac{-\sqrt{2} }{2}

∴ cosФ = \frac{-\sqrt{2} }{2}

∵ y-coordinate = \frac{\sqrt{2} }{2}

∴ sinФ = \frac{\sqrt{2} }{2}

- cotФ is the reciprocal of tanФ

∵ tanФ = sinФ ÷ cosФ

∴ cotФ = cosФ ÷ sinФ

∴ cotФ = \frac{-\sqrt{2} }{2} ÷ \frac{\sqrt{2} }{2}

∴ cotФ = -1

The values of cosine Ф and cotangent Ф are \frac{-\sqrt{2} }{2} and -1

Learn more:

You can learn more about the trigonometry function in brainly.com/question/4924817

#LearnwithBrainly

4 0
3 years ago
Read 2 more answers
Please help with this percent problem:
Soloha48 [4]

Answer: 130

Step-by-step explanation: the only reasonable answer

8 0
2 years ago
Hill’s garden has lots of apple trees. 140 apples fall on ground in 35 seconds. How many apples fall in one second?
IRISSAK [1]
4 Apple would fall in 1 second
3 0
3 years ago
Other questions:
  • Vanessa can afford a $1405-per-month house loan payment. If she is being offered a 20-year house loan with an APR of 4.8%, compo
    11·2 answers
  • A set of data consists of 38 observations. how many classes would you recommend for the frequency distribution
    8·1 answer
  • What is the area of the square base of a sandbox, if one side is 6 feet long?
    8·2 answers
  • Ian makes 7 ½ quarts of fruit punch using 3 different juices. The juices he used are listed.  3 ¼ quarts of blueberry juice  1
    7·1 answer
  • WILL GIVE BRAINIEST A ball is thrown from a height of 45 meters with an initial downward velocity of 5/ms. The ball's height h (
    12·1 answer
  • Write an equation in slope-intercept form of the line with slope −1 that contains the point (5,−2).
    5·1 answer
  • The difference between a number divided by 3 and 4 is 21
    15·1 answer
  • A tablet computer is on sale for $115 off. The sale price is $525.
    9·2 answers
  • 1 point<br>How does the graph of f(x) = 4(x – 3)2 – 2 compare to the graph of g(x) = x??​
    13·1 answer
  • What is the centimeters per hour. PICTURE. I REALLY NEED HELP
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!