PetricevicE01 PetricevicE01

23-03-2015
Mathematics

contestada

The diameter of this compact disc is 11.8cm. The hole in the middle has a area of 1.54cm2. What is the area of the plastic in this disc?

Respuesta :

Since3122015 Since3122015

23-03-2015

[tex]A=A_{disc}-A_{hole}\\A=\pi r^2-(1.54)\\A=\pi(5.9)^2-1.54\\A=34.81\pi -1.54\\A=109.358840271-1.54\\A=107.818840271[/tex]

Area = 107.82 square inches.

Answer Link

Otras preguntas

Translate each mathematical sentence into words. Ø⊆N

The table shows the advertised horsepower ratings and expected gas mileage for several 2012 vehicles as reported by Kelley Blue Book. Vehicle Horsepower Gas Mi

6. Respiration, which releases the energy in food molecules, usually involves

What is your total displacement if you walk 30m East and 50m North?

what security certification uses the open source security testing methodology manual (osstmm) as its standardized methodology? group of answer choices ceh

x²y6/xy² What is the value of the expression above if x = -2 and y = 2?

Calculate the exact areas of circle P and regular hexagon ABCDEF. Find the exact area of the shaded region shown in the image above. Imagine circle P with regu

Which sentence most accurately describes the daily growth rate of plants? A- average plant height divided by total number of plants B- sum of individual plant h

The inequality −8(x − 1) ≥ 88 is given. Part A: Solve the inequality and show every step of your work. (4 points) Part B: Explain in words how to graph the solu

y = 3x + 7 y = -2x - 8