madisonnance1
madisonnance1
02-06-2018
Mathematics
contestada
what is r in this equation?
πr^2=42π
Respuesta :
aosera
aosera
02-06-2018
r in this equation refers to the radius
[tex] {\pi r}^{2} = 42\pi \\ {r}^{2} = \frac{42\pi}{\pi} \\ r = \sqrt{42 } \\ r = 6.480740698 [/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 68+ )
Otras preguntas
Convert the general form of the circle given into standard form. 2x^2 + 2y^2 - 20x - 8y + 50 = 0
How many hours are 180 minutes
A curved section of roadway is in the shape of a circular arc of 410-m radius. The curved section is horizontal, not banked. The coefficient of friction for tir
How is 3x-y=8 and x+2y=5 solved by combination (addition)?????
Rachel and David share 40 biscuits between them in the ratio 2:3, How many biscuits do they each get?
Compute the value of the discriminant and give the number of real solutions to the quadratic equation: 3x^2 - 7x + 9 = 0
Perimeter of a square with an area of 81cm2
Find 4 consecutive odd integers where the product of the two smaller numbers is 64 less than the product of the two larger numbers.
Hassan's backyard swimming pool is 30 feet long, 20 feet wide, and 5 feet deep. There are 7.5 gallons of water in 1 cubic foot. How many gallons of water will t
What is the solution: (9x+2)(4x^2+35x-9)=0