Answer:
B. What must be true.
Step-by-step explanation:
hope that helps :)
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
Answer:
15
Step-by-step explanation:
a^2 + b^2 = c^2
9^2 + 12^2 = 225
Hope this helps!!
Step-by-step explanation:
a1 = 27
r = -9/27 = -⅓
the formula :
an = a1. r^(n-1)
= 27. (-⅓)^(n-1)
= 3³(-3`¹)^(n-1)
= 3³(-3)^(1-n)
Answer: 31.75 + 8.10s ≤ 52.50
Step-by-step explanation:""""Brainlest anwser""""""
