The quadratic formula is -b plus minus the square root of b^2-4ac all over 2a.
Here, a=1, b=13, and c=30.
The only option that fills in the values correctly is D
Answer:
a is, A to c, B E to f, c is g to h I think? 2 a is no, cause it doesn't add up to 90, b is no for the same reason and c is no.
Step-by-step explanation:
i hope I helped I'm iffy on A)c
THE FACTORS OF 16 ARE 1,2,4,8,16
THE FACTORS OF 96 ARE 1,2,3,4,6,8,12,16,24,32,48,96
THE GREATEST COMMON FACTOR IS 16
THE GREATEST COMMON FACTOR OF 2 OR MORE NUMBERS IS THE LARGEST WHOLE NUMBER THAT DIVIDES EVENLY INTO EACH OF THE NUMBERS
solution;
a) From the given information,
N = 53,min=42 and max = 129
K = 1+3.322log₁₀53
= 1+3.322(1.724)
= 1+5.728
= 6.728
Number of classes is 7.
b) find the width of the class interval first
width = max – min /classes
= 129-42/7
= 87/7 =12.42
Take the next largest number 13 as class width. Since the minimum value is 42
The lower limit iof the first class could be 40.
So,
The upper limit of the last class is,
40+(13 x 7) = 131
As the upper limit of the last class covers the entire range of values,
It is better to take the lower limit of the first class as 40
The lower limit of the first calss could be 40.
