Please find the attached photograph for your answer
Answer:
Step-by-step explanation:
[(2 hours)/(1 day)](14 days)=(18+x)hours
Let's note that the unit of day is in the numerator and denominator. It cancels
[(2 hours)/(1 day)](14 days)=(18 hours)+(x hours)
(2 hours)(14)=(18+x)hours
Let's note that the unit of hours is in the numerators of both sides of the equation. It cancels
(2 hours)(14)=(18+x)hours
(2)(14)=18+x
28=18+x
10=x
HE WILL HAVE TO STUDY 10 HOURS.
Given:
Part A: 
Part B: 
To find:
The value of each expression.
Solution:
Part A:
Using exponent rule: 


Using exponent rule: 


Cancel the common factor, we get
= 1

Part B:

Using exponent rule: 


Using exponent rule: 



Your original fraction was probably greater than 1/2 because if it was less than you wouldn't be able to divide it.
Answer:
B. II only . . . (-1, 4)
Step-by-step explanation:
The function factors as ...
f(x) = (x +1)(x -4)
The factors are zero when x=-1 and x=4. The value of the function will be negative when one of these factors is negative, between x=-1 and x=4. In interval notation, that interval is ...
(-1, 4) . . . interval for f(x) < 0 . . . . . . interval description II (only)