I believe the problem ask for s which is the standard
deviation. We must recall that the formula for z statistic is stated as:
z = (x – x over bar) / s
Where,
z = z statistic = 2.5
x = sample value or sample score = 102
x over bar = the sample mean or sample average = 100
s = standard deviation = unknown
Rewriting the equation in terms of s:
s = (x – x over bar) / z
Substituting the given values into the equation:
s = (102 – 100) / 2.5
s = 0.8
Therefore the standard deviation s is 0.8
Given:
The statement is "-3 raised to the power 0".
To find:
The value of the given expression.
Solution:
We know that 
raised to the power 
can be written as 
.
Any non zero number raised to the power 0 is always 1. It means,
, where 
.
-3 raised to the power 0 
Therefore, the value of the given statement is 1.
1 yards = 36 inches
3 × 36 = 108
1 foot = 12 inches
108 + 12 =120
So 3 yards and 1 foot is equal
to 120 inches
120 is greater than 100 so 3 yards and 1 foot is greater than 100 inches
Answer:
x ≈ - 6.49, x ≈ 12.49
Step-by-step explanation:
Given
(x - 3)² + 7 = 97 ( subtract 7 from both sides )
(x - 3)² = 90 ( take the square root of both sides )
x - 3 = ± 
( add 3 to both sides )
x = 3 ±
Then
x = 3 - ≈ - 6.49 ( to the nearest hundredth )
x = 3 + ≈ 12.49 ( to the nearest hundredth )
