Answer:
-4
Step-by-step explanation:
- 4(m + 6) = - 8
(- 4)(m) + (- 4)(6) = - 8
- 4m - 24 = -8
- 4m = 16
m = - 4
Answer:
x = 81
Step-by-step explanation:
using the rule of logarithms
x = n ⇒ x =
given
x = 4 , then
x = = 81
Answer:
D
Step-by-step explanation:
Answer:
x = 4 , y = 1
Step-by-step explanation:
3x + 2y = 14 → (1)
x + y = 5 → (2)
Multiplying (2) by - 2 and adding to (1) will eliminate the y- term
- 2x - 2y = - 10 → (3)
Add (1) and (3) term by term to eliminate y
x = 4
Substitute x = 4 into (2) and evaluate for y
4 + y = 5 ( subtract 4 from both sides )
y = 1
The perimeter for the rectangle is 64.5m.