Answer:
B. 3a
Step-by-step explanation:
Answer:
and
.
Step-by-step explanation:
Equation:
![\rm \: \: (2x - 1)(3x + 4) = 0](https://tex.z-dn.net/?f=%20%5Crm%20%5C%3A%20%20%5C%3A%20%282x%20-%201%29%283x%20%2B%204%29%20%3D%200)
Solution:
Set factors equal to zero,that is:
![(2x - 1) = 0 \: \: \: \: \: \: \: \: \: \: \: ...(1)](https://tex.z-dn.net/?f=%282x%20-%201%29%20%3D%200%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20...%281%29)
![(3x + 4) = 0 \: \: \: \: \: \: \: \: \: \: \: \: ...(2)](https://tex.z-dn.net/?f=%283x%20%2B%204%29%20%3D%200%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20...%282%29)
Solving for equation 1:
Solving for equation 2:
Hence,the solutions to the quadratic equation in factored form is
and
.
![\rule{225pt}{2pt}](https://tex.z-dn.net/?f=%5Crule%7B225pt%7D%7B2pt%7D)
Good luck on your assignment!
Answer:
9.60πcm²
Step-by-step explanation:
Area of circular disk, A = πr²
Differntiate A with respect to r
dA/dr = π * (2r^(2-1)) /(2-1) + C
dA/dr = π * 2r/1
dA/dr = 2πr
dA = 2πr * dr
dA = 2πrdr
dA = maximum error ; dr= Error in measurement = 0.2 cm ; r = radius = 24cm
dA = 2π * 24 * 0.2
dA = 9.60πcm²
Do we have to give it in a percentage? Or....