5 - 7 = - 2 ;
- 2 - 7 = - 9 ;
-9 - 7 = -16 ;
"common difference" d is - 7 ;
The n-th term of an arithmetic sequence is of the form <span>an = a1 + (n – 1)d ;
</span>a50 = 5 + 49 × ( - 7 ) = 5 - 343 = - 338;
Answer:
Kindly check explanation
Step-by-step explanation:
Given that :
Equipment elevator Descent = 4 fts per Second
Miners elevator descent = 17 ft/sec
Miner's elevator begins descent 25 seconds after equipment elevator :
Elevation after another 12 seconds :
Descent = (speed * time)
Equipment elevator = 4 * (25 + 12) = 148 ft descent
Miner's elevator = 17 * 12 = 204 ft descent
The Miner's elevator is deeper at 204 feets.
Answer:
it is congruent by the SAS postulate
X + y = 304,250
x = y + 51,000
Plug in (y+51,000) for x into the first equation
y+51,000+y = 304,250
Subtract 51,000 from both sides.
2y = 253,250
y = 126,625
Plug y into second equation
x = 126,625 + 51,000
x =177,625
Person A : 177,625
Person B : 126,625
Answer:
-300
Step-by-step explanation:
200-500=-300
500+(-300)=200
