<span>(3b - 5x)(a +3) is the answer
</span>
Answer: The answer is 4. 7+(-3) is like 7 minus 3.
Step-by-step explanation:
The area of the triangle is 14.1 square meters
<h3>How to determine the triangle area?</h3>
The side lengths are given as:
5m, 6m and 9m
Calculate the semi-perimeter (s) using
s = (5 + 6 + 9)/2
Evaluate
s = 10
The area is then calculated as:

This gives

Evaluate the products

Evaluate the exponent
Area = 14.1
Hence, the area of the triangle is 14.1 square meters
Read more about areas at:
brainly.com/question/27683633
#SPJ1
Hello there!
The correct answer is option A
Instead of the division sign, it suppose to be multiply.
Have fun on Khan Academy!