Answer:
You cannot add like terms like that.
Step-by-step explanation:
The terms are supposed to be added together, by combining them like that you are multiplying them together.
67+52+x=180
119+x=180
x=61
hope this helps!
the equation to be used would be x=180-(67+52)
Answer:
D. 4in, 12in
Step-by-step explanation:
Area of triangle = 24in²
Unknown:
Base and height of the triangle = ?
Solution:
The area of a triangle =
x base x height
From the problem,
base =
x height
let the base = b
height = h
b =
h
h = 3b
Input into the formula of area;
24 =
x b x 3b
Mulitply through by 2;
48 = 3b²
b² = 16
b = √16 = 4
So, h = 3b= 3 x 4 = 12in
Geometric mean of a and b is:


=
40Answer:
B ) 40