1/4z + 8 = 12
1/4z = 12 - 8
1/4z = 4
z = 4 / (1/4)
z = 4 * 4/1
z = 16 <===
==================
-3(2n + 1) + 7 = -5
-6n - 3 + 7 = -5
-6n + 4 = -5
-6n = -5 - 4
-6n = -9
n = -9/-6
n = 3/2 <===
===================
2.5(t - 2) - 6 = 9
2.5t - 5 - 6 = 9
2.5t - 11 = 9
2.5t = 9 + 11
2.5t = 20
t = 20 / 2.5
t = 8 <===
1/2^3 would be the answer!
Hope this helps!
Answer:
A) a variable
Step-by-step explanation:
A) a variable a variable changes value 7 does not change
B) an expression does not have an equal sign 7 does not have an equal sign
C) a constant 7 is constant, it does not change
D) a term is a group of numbers and variables with no operators
0.12 I think I’m not sure how to do this I ji at have an idea maybe I’m super wrong
Answer: B
Step-by-step explanation:
I used heron's formula.
