Answer:
the answer is $65
Step-by-step explanation:
Answer:
Group 2
Step-by-step explanation:
Because in group 2 they have more 46 year old tourists so it is most likely that the random 46 year old belongs to group 2.

One thing you could do is to expand either a factor of

or

, then expand the integrand. I'll do the first.
You have

which means the integral is equivalent to

Substitute

, so that

. This makes it so that the integral above can be rewritten in terms of

as

Now just use the power rule:

Back-substitute to get the antiderivative back in terms of

:
Answer: C.) 1.12 seconds
Step-by-step explanation:
Hi, to answer this question we have to substitute h=0 (when the rock hits the ground the height above it is 0) in the equation given:
h (t) = –16t2 + 20
Solving for t (time)
0= –16t2 + 20
16t2=20
t2=20/16
t=√1.25 =1.12 seconds (option C)
Feel free to ask for more if needed or if you did not understand something.