Using Heron's formula:
A = √(p(p-a)(p-b)(p-c)) where a,b,c are the sides of the triangle and p is half the perimeter.
The answer is B. 149.4 square units.
Answer:
I've already answered :) Please give Brainliest ;)
Step-by-step explanation:
-12 + 2a = -6 (1+a)?
Answer is 0 = 6
Subtract 2d from both sides
simplify 10 + 2.5d - 2d to 10 + 0.5d
subtract 10 from both sides
simplify 4 - 10 to -6
divide both sides by 0.5
simplify 6/0.5 to 12
switch the sides
Answer: d = -12.
Hello!
To solve 2x+6>20, you'll first need to subtract. First, you'll need to subtract 6 from 20 (20-6). Now if the 6 was negative, you would need to add 6 to 20, but for this equation you'll subtract.
2x>14
Now you will need to divide both sides by 2. Once you've done that you'll have your answer of...
x>7
I hope this helps!
