Answer:
b will be the right answer
I am sure
Answer:
21 cm by 21 cm
Step-by-step explanation:
The formula for the area of a square is A = x^2, where x is the length of any one side of the square. Here,
441 cm² = x²
This actually has two roots: {√441, -√441), but since x must be positive here, to be a dimension of the square, we choose +√441, or +21.
The dimensions of the square are 21 cm by 21 cm.
43 6 goes into 25 4 times equaling 24 put the 1 carry down thw 8 6 time 3 is 18 that's 43
Answer:'
Frase
Step-by-step explanation:
Frase
Answer:
The right answer is:
(a) 0.1456
(b) 18.125, 69.1202, 8.3139
Step-by-step explanation:
Given:
N = 24
n = 5
r = 7
The improperly drilled gearboxes "X".
then,
⇒ 
(a)
P (all gearboxes fit properly) = 
= 
= 
(b)
According to the question,

Mean will be:
⇒ 





Variance will be:
⇒ 





Standard deviation will be:
⇒ 