Answer:
option A
Step-by-step explanation:
given,
10% A grades 80% B grades 10% C grades
This year, managers with scores less than 35 received C's and those with scores above 425 received A's.
The mean has to be middle of two corresponding cutoff value

μ = 230
Cutoff Off C grade corresponds with the area of 0.10 is table A.
corresponding z- score according to Table A
Z = -1.28
now, standard deviation



σ = 152.3
Correct answer is option A
Answer:
corresponding value of equal matrix is equal
a=10
b= -6
c=3
Step-by-step explanation:
Answer:
3) (x-5)^2+y^2=36
Step-by-step explanation:
1 US dollar= 1.18 Canadian dollars
1 Canadian dollar= .85 US cents
$460 Canadian Dollars= $390.33 US Dollars
Answer:
The measure of angle i = 114°
Step-by-step explanation:
180-117= 63
180-129= 51
63°+51°= 114°