Answer:
d
Step-by-step explanation:
3a²-4b
3(-6)²-4(-5)
108+20
128
Answer:
The number of students that passed both subjects=45
Step-by-step explanation:
Step 1
Determine total number of students that passed both subjects using the expression below;
p=n-f
where;
p=number that passed both
n=total number of students
f=total number that failed both subjects
In our case;
p=unknown
n=50 students
f=5
The expression can also be written as:
number that passed both=total number of students-number that failed both subjects
replacing;
number that passed both=(50-5)=45
The number of students that passed both subjects=45
Answer: 1) $3885 2) $4312.35
Step-by-step explanation:
The formula to find the compound amount is given by :-
, where P is the principal amount , r is the rate of interest and t is the time period.
Given : Principal amount : 
,
Rate of interest : 
When t=1 , then the amount in the account at the end of 1 year:-
When t=2 , then the amount in the account at the end of 1 year:-
