Answer:
Step-by-step explanation:
there is no root in denominator so I think it is rationalised
Answer:
Step-by-step explanation:
new dimensions of prism: x by (x+4) by (2x).
volume = x(x+4)(2x) = 2x³ + 8x²
2x³ + 8x² = 450
2x³ + 8x² - 450 = 0
x³ + 4x² - 225 = 0
x = 5 in
Answer:
negative 2.3
Step-by-step explanation:
Answer:
14.2 miles
Step-by-step explanation:
14.4 + m = 28.6 is your equation
Then subtract 14.4 from both sides
m = 14.2
The "mean" is the same thing as the "average".
To get the average, you add up all the numbers on the list,
then divide the big sum by the number of items on the list.
If there are 100 numbers on the list, then in order to find their average,
you would add up all 100 numbers, then divide the big sum by 100.
If you wound up with an average of 51.18, then you must have had
5,118 just before you divided it by 100. So the big sum is 5,118.
