4
5x - 4 = 16
Add four to both sides
5x = 20
Divide both sides by 5
x = 4
Answer:
= 188, x = 7.89, s = 2.23
Step-by-step explanation:
= 188, x = 7.89, s = 2.23
ANSWER

EXPLANATION
The given exponentiial expression is

We simplify using the rule:

We apply this property to get:

We simplify to get;

We rewrite as a positive index to get;

Answer:
1:4
Step-by-step explanation:
There are only two colours available, red and green. We know that there are 11 red marbles and 55 marbles altogether, so the number of green marbles must be 55 - 11, or 44. That means that the ratio of red to green marbles is 11:44, or 1:4.
Answer:
4. 2
Step-by-step explanation:
Subtitue the value of variable into the equation and simplify 2