2 answers:
Answer:
n=-1 or n=-4
Step-by-step explanation:
-5/6n + 15/ = -45
/6n + 15/ = 9
square both sides to neutralize absolute value
/6n + 15/^2 = 81
36n^2 + 180n + 225 = 81
divide both sides by 9
4n^2 + 20n + 25 = 9
4n^2 + 20n + 16 = 0
divide both sides by 4
n^2 + 5n + 4 = 0
Factorize
(n + 1)(n + 4) = 0
therefore n = -1 or -4
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X^2^4 = x^8
Just multiply then 2 and 4 to get 8
Answer:
8 = -7
This statement is false.
Step-by-step explanation:
The number will be represented by x
-7x + 8(x + 1) = x - 7
8 * x = 8x
8 * 1 = 8
-7x + 8x + 8 = x - 7
Add like terms
-7x + 8x = x
x + 8 = x - 7
-x -x
8 = -7
This statement is false.
Answer:
3 hrs. 30 mins.
Step-by-step explanation:
7:00 - 3:30
Answer:
3.5 HOURS
if he is 40 mph he goes 40 miles in 1 hour so it will take 3 1/2 hours to go 190 miles
4 / 4^3 = 4^-2 = 1 / 4^2 = 1/16
