Answer:
×=-2
Step-by-step explanation:
you subtract 4 on both sides
Imagine, at the first day you have only one penny. Then tomorrow you have 2 pennies, next day you have 4 (2x2), next day you have 8 (4x2), next day you have 16 (8x2).... and so forth.
It looks like geometric sequence isn't it? (the ratio between the number of pennies that you have from the 2nd day and the 1st day is 2)
So, by using geometric sequence theorem we can total those pennies until day-27
S (total pennies at day-27) = (1)(2^27-1) / 2-1 = 2^26 pennies
So, you have 2^26 pennies.. a big number of pennies huh?=))
{The formula is: S = a( r^n-1) / r-1
Where:
a= the number of pennies that you've got at the 1st day
n= number of days you spent to collect those pennies)
r= the ratio of the number of pennies}
1, 2, 3 and 4. Because 1 cubes is 1. 2 cubes is 8. 3 cubes is 27. 4 cubes is 64. 5 cubes is 125.
Answer:
2.54 , 2 , 1/4 , -1.79 , -4
Step-by-step explanation:
All three of these angles will add up to 180.
Set up an equation so all three will add to 180:
Combine like terms:
Divide both sides by 12:
x will equal
15.