Answer:
Does not make a triangle
Step-by-step explanation:
The Pythagorean theorem is
a^2 + b^2 = c^2
a+b > c
22+32 =54 This is less than 55 so this does not make a triangle
Answer:
$6370
Explanation:
The simple interest formula gives us the final amount A given the principal amount P:

where r is the interest rate and t is the time interval.
Now in our case we have
P = 2800
r = 4.25/100
t = 30 years
therefore, the above formula gives

which simplifies to give

Hence, the account balance after 30 years will be $6370.
9 is the answer because 1/3 = 3
Only the third one makes x=-1 true