Answer:
see explanation
Step-by-step explanation:
The perimeter is the sum of the 3 sides, that is
perimeter = 8 + 12 + 17 = 37 cm
To use Heron's formula for area (A)
A =
where a, b and c are the lengths of sides and s the semi perimeter
s = 37 ÷ 2 = 18.5
let a = 8, b = 12 and c = 17, then
A =
=
= ≈ 43.52 cm² ( to 2 dec. places )
Answer:
(b)
Step-by-step explanation:
Given: Cost of car is
Sales tax is
The license and title charges are
To find: The amount that the credit union will finance.
Solution:
We have,
Cost of car
Sales tax is of
Therefore,
sales tax
The license and title charges
Now, the amount that the credit union will finance is
cost of carsales tax
the license and title charges
Hence, the amount that the credit union will finance is .
So, (b) is correct.