Answer:
7.36
Step-by-step explanation:
z-score is:
z = (x − μ) / σ
Given that z = -1.63, x = 23, and μ = 35:
-1.63 = (23 − 35) / σ
σ ≈ 7.36
Answer:
a
Step-by-step explanation:
replace x with -7
Well there is no question that i can see so if this is a riddle then it is already properly solved due to no question at all
Answer:
7.28 m
Explanation:
Use the Pythagorean Theorem. The length of the ladder is the hypotenuse.
a^2 + b^2 = c^2
a = 2, b = 7, c = ?
Plug in the values into the equation.
2^2 + 7^2 = c^2
4 + 49 = c^2
Square root both sides to get c = 7.28
Answer:
I thinks it's A
Step-by-step explanation:
1) 12:6×1=2
2) 12:4×1=3
3) 1+1+2+3+2=9
4) 12-9=3
