Answer:
A= 57 sq units
Step-by-step explanation:
To calculate the are area of a triangle we use the Herons formula:
A=√s(s-a)(s-b)(s-c) where a, b and c are the sides of the triangle.
s=(a+b+c)/2
s=(10+13+12)/2
=17.5
A=√[17.5(17.5-10)(17.5-13)(17.5-12)]
A= 57 sq units
If you would like to simplify the following expression <span>(28x - 7y) + (32x + 52y), you can do this using the following steps:
</span>(28x - 7y) + (32x + 52y) = <span>28x - 7y + 32x + 52y = 28x + 32x - 7y + 52y = 60x + 45y
</span>
The correct result would be B. <span>60x + 45y.</span>
Answer:
A, B and D
Step-by-step explanation:
7 goes in to 28 and 12 goes in to 32
14 goes into 28 and 16 gies i to 32
7 goes into 28 and 8 goes into 32
Your answer would be 0.5 ;)
Hope this helps
