Area formula is A=πr2
A=3.1416(radius)2 (radius is 7)
A=3.1416(49)
A=153.94
The area is 153.94 inches.
Hope that was helpful :)
R^4-2(r-14)>0
r^4-2r+28>0
r^4-2r+28=0
There is no real solution but there is all real numbers
:)
Answer:
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Step-by-step explanation:
Indirect proof or contradiction
Are there choices to pick from?
Answer:
missing value b is 14
Step-by-step explanation:
We have been given the modulus of a complex number which is
![r=\sqrt{a^2+b^2}](https://tex.z-dn.net/?f=r%3D%5Csqrt%7Ba%5E2%2Bb%5E2%7D)
Here on comparing the given complex number with general a+bi we get:
a=48 and b=b
On substituting the values in the formula for modulus we get:
![\sqrt{48^2+b^2}=50](https://tex.z-dn.net/?f=%5Csqrt%7B48%5E2%2Bb%5E2%7D%3D50)
![\Rightarrow 2304+b^2=50^2](https://tex.z-dn.net/?f=%5CRightarrow%202304%2Bb%5E2%3D50%5E2)
![\Rightarrow b^2=2500-2304](https://tex.z-dn.net/?f=%5CRightarrow%20b%5E2%3D2500-2304)
![\Rightarrow b^2=196](https://tex.z-dn.net/?f=%5CRightarrow%20b%5E2%3D196)
![\Rightarrow b=\sqrt{196}](https://tex.z-dn.net/?f=%5CRightarrow%20b%3D%5Csqrt%7B196%7D)
![\Rightarrow b=14](https://tex.z-dn.net/?f=%5CRightarrow%20b%3D14)
Therefore, missing value b is 14