Step-by-step explanation:
hi im not sure it's right it was kinda confusing
The answer is D) Marty gets ten dollars for his allowance and then spends ten dollars at the movies
because $10-$10=0
If x = -b/2a, then 2a = -b / x so a = -b / 2x or a = b / -2x
So the denominator is -2x because it has to take the minus sign that the numerator refused to take ;-)
Answer:
I . class width is 3
ii. Class midpoints are 33,36,39,42,45,48,51.
iii. Class boundaries are: 31.5-34.5, 34.5-37.5, 37.5-40.5, 40.5-43.5, 43.5-46.5, 46.5-49.5, 49.5-52.5
Step-by-step explanation:
I. The class width is the difference between upper class boundary and lower class boundary.
ii. Class midpoints is the summation of upper and lower class limits, divided by 2.
iii. Class boundaries is the subtraction of 0.5 from the lower classe limits and the addition of 0.5 to upper class limits.
4/5 is the the fraction of a pound is eighty pence
