3.
A.
find the area under the curve first
![\int\limits^{\sqrt[3]{\pi}}_0 {x sin(x^3)} \, dx =0.61157809233184](https://tex.z-dn.net/?f=%20%5Cint%5Climits%5E%7B%5Csqrt%5B3%5D%7B%5Cpi%7D%7D_0%20%7Bx%20sin%28x%5E3%29%7D%20%5C%2C%20dx%20%3D0.61157809233184)
then solve c∛π=0.61157809233184
c≈0.41757577488026
round if necicary
4.
alright, solve where they itnersect
x²=y=mx
x²=mx
x²-mx=0
x(x-m)=0
set to zero
x=0
x-m=0
x=m
they intersect at x=0 and x=m
which one is on top?
hmm
y=mx will always be on top (I don't know how to prove that but it's on top)
so we do

solve

so

m³=48
m=2∛6
DOB = DOE + EOA + AOB
180 = 60 + 90 + AOB
==> AOB =30
What I would do is make studing a fun way like give yourself a prize if you got something write. I would also just think about my future and friends instead of boys.
Answer:
Binet suggested the concept of mental age, or a measure of intelligence based on the average abilities of children of a certain age group.
and for the second question
If a child has a mental age of 10. What does that mean? That the child does as well as the average 10 year old.
Explanation:
i hope this helped heave a great day ^^