Answer:
an = a(n-1) - 7
Step-by-step explanation:
the second term is smaller than the first term 7.
a20 = a19 - 7
a19 = a18 - 7
=> a20 = (a18 - 7) - 7
Then you can accumalate until a1
-> a20 = a1 - 19*7 = 86 - 19*7 = -47
Answer:
V≈1570.8
Step-by-step explanation:
Radius-10
Height- 5
The answer will be V≈1570.8
Hope this helps
The probability that it doesn't land on 4 would be 3/8. This is because theres a 5/8 chance it lands on 4 so just do the opposite which would be 3/8.
Answer:
x = ± 8
Step-by-step explanation:
Given
4x² - 256 = 0 ( add 256 to both sides )
4x² = 256 ( divide both sides by 4 )
x² = 64 ( take the square root of both sides )
x = ± 
= ± 8
Solutions are x = - 8, x = 8
Answer:
3y + 2 =
Step-by-step explanation:
7y - 4y = 3y
3y and 2 are not like terms, so you can't add any further
