Answer:
0.1497
Step-by-step explanation:
1×.1 +4×.01 +9×.001 +7×.0001 =
.1 +.04 +.009 +.0007 = 0.1497
Answer:
x=27
Step-by-step explanation:
The sum of the angles of a triangle are 180 degrees
90 + x+15 + 2x-6 = 180
Combine like terms
3x+99=180
Subtract 99 from each side
3x+99-99=180-99
3x =81
Divide each side by 3
3x/3 = 81/3
x=27
Step-by-step explanation:
By using angle sum property
x-43+x-39+2x-18=180
4x=180+100
4x=280
x=280/4
x=70°
Answer:
Step-by-step explanation:
Let X be the heights of adult men in America and Y that of women in America
X is N(69.8, 2.69) and Y is N(64.8,2.53)
a) Man is 6 feet 3 inches = 75 inches
Z score =
b) Prob = 0.5-0.4686 = 0.0314
3.14% are shorter than him
c) Y score = 5 ft 11 inches = 71 inches
Z=
d) Prob (Z>2.45) = 0.5-0.4929=0.0071
Nearly 0.71% people are taller than 5 ft 11 inches.