Answer:
(a) z(105)= (105-95)/10
= 1
z(85)= (85-95)/10
= -1
P(85< x < 105) = P(-1< z < 1) = 0.6825
Quantity of people of 1600 that have IQ between 85 and 115 = 0.6825*1600= 1092
(b) z(105) = (115-95)/10 = 2
z(85) = (75-95)/10 = -2
P(-2< z < 2) = 0.6827
quantity of people of 1600 that have IQ between 75 and 115 = 0.6825x1600=1092
(c) Z(>125)=( 125-100)/10=3
Yes it is possible.
let's take a rectangle with 2 sides of 8 and 2 sides of 4
the area would be 32
and the perimeter would be 24
now, let's take another rectangle with 2 sides of 16 and 2 sides of 2
the area would be 32
and the perimeter would be 36
the areas are the same, but the perimeters are different.
therefore, it is possible.
Answer:
30m
Step-by-step explanation:
A=πr²
225π=πr²
225=r²
r=√225
r=15
d=2r
d=2×15
=30m
Answer:
im sorry
Step-by-step explanation:
i dont kno
Answer:
72 yd^3
Step-by-step explanation: