Djdjxkdjdkdkdjddjdjdj yuppppppppp 37387(5y6666+4)WEI
Answer:
a₁ = -5, d = 7, a₂ = 2, a₃ = 9, a₄ = 16
equation of sequence: 
Step-by-step explanation:
a₁ + a₂ + a₃ = 6
a₁ + a₁ + d + a₁ + 2d = 6
3a₁ + 3d = 6
a₁ + d= 2 ⇒ a₁ = 2 - d
a₄ = 16
a₁ + 3d = 16
2 - r + 3d = 16
2d = 14
d = 7
a₁ = 2-7 = -5
a₁ = -5, d = 7 ⇒ a₂ = -5+7 = 2, a₃ = 2+7 = 9, a₄ = 9+7 = 16
equation of arithmetic sequence:

The value of x is 
Step-by-step explanation:
Given:

Rearranging the radical on left side,

Power on both sides,

Simplifying the left,

For the RHS equation, use the property of (a-b)² = (a²-2ab+b²),

Now calculating its powers,

Now sending -4√x to the LHS (left side), its sign becomes plus (+),

Now the +x and -x will be cancelled,


Bringing 4 to the right side, it becomes the denominator,


Now powering both sides,


Answer:68600m
Step-by-step explanation:98 meters to cm is 9800 then times it by 7 you get 68600