Answer:
aₙ= 3n+1
Step-by-step explanation:
4 ,1 -2, -5 ,-8
AP with a₁=4 and d= -3
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aₙ= 4+3*(n-1)= 4+3n-3= 3n+1
aₙ= 3n+1
Answer:
168 cm²
Explanation:
Lateral surface area of triangular prism: (perimeter of base) × height
Here given:
So, lateral surface area:
= (4 + 6 + 4) × 12
= 168 cm²
Answer:
{-1, 5/2}
Step-by-step explanation:
2x² - 3x = 5
2x² - 3x - 5 = 0
(2x - 5) (x + 1) = 0
2x - 5 = 0, therefore 2x = 5 and x = 5/2
x + 1 = 0, therefore x = -1
Answer:
9
Step-by-step explanation:
8.865 to the nearest whole number is 9, nine is a whole number because there are no decimals following, and since the number "8" is greater than 5, we round up, which would cause it to be 8.900, so to the nearest whole number, it would be 9.
Answer:
x=2/5
or
x=-22/5
Step-by-step explanation:
If Ciro's expression is equal to Gunther's expression x is equal to 2/5.
If Gerard's expression is equal to Gunther's expression x is equal to -22/5.
Your welcome!