Answer:
51.3
Step-by-step explanation:
20-30: 100
30-40: 220-100 = 120
40-50: 350-220 = 130
50-60: 750-350 = 400
60-70: 950-750 = 200
70-80: 1000-950 = 50
Mean = sum(f × x) / sum(f)
= [25×100 + 35×120 + 45×130 + 55×400 + 65×200 + 75×50] ÷ 1000
= 51,300 ÷ 1000
= 51.3
Step-by-step explanation:
Since they are of the same kind, just subtract the negative number which is 5v from the positive number which is 10v, giving an answer of 5v and that becomes the final answer.
Life Goes On
Life Goes On
Yes but a vertical line cannot because the slope m is undefined.
Well, 2 is a whole number so you keep that as a whole number. 3/4 is like money 4 quarters equals a dollar so how much is 3 quarters. So the answer is 2.75
12x^3 - 14x^2 - 6x
GCF is 2x:-
= 2x(6x^2 - 7x - 3)
= 2x [ 6x^2 + 2x - 9x - 3]
= 2x [2x(3x + 1) - 3(3x + 1)]
= 2x(2x - 3)(3x + 1) Answer