Answer:
x³=27
cuberoot√x³=cuberoot of 27
x=3
Yes it is a function
Y=x(x-1)
X(x-1)
X to the 2nd power -1x
Hope that’s helps
Answer:
area= 1/2 × d1 ×d2
d = diagonal
area= 1/2 ×24×18 =216 unit^2
Answer:
The proportion would be 0.1
Step-by-step explanation:
Given, the function that shows the proportion of students in a psychology experiment who could remember an eight-digit number correctly for t minutes,
![f(t) = 0.9 - 0.4\ln(t)](https://tex.z-dn.net/?f=f%28t%29%20%3D%200.9%20-%200.4%5Cln%28t%29)
If t = 7 minutes,
![f(7) = 0.9 - 0.4\ln(7)=0.9 - 0.77836=0.12164\approx 0.1](https://tex.z-dn.net/?f=f%287%29%20%3D%200.9%20-%200.4%5Cln%287%29%3D0.9%20-%200.77836%3D0.12164%5Capprox%200.1)
Hence, the proportion that remembered the number for 7 minutes is 0.1 ( approx )