Help with number 7. we just started this unit so i'm clueless.. please help!
2 answers:
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Answer:
≠
Step-by-step explanation:
- 6,2 × 10² = 0 × t + ½ × (-9/8) × t² + 2582,91
- 6,2 × 100 = 0 + ½ × (-9/8) × t × t + 2582,91
- 620 = ½ × (-9/8) × t × t + 2582,91
- 620 = (-9/16) × t × t + 2582,91
- 620 = (-9/16 t²) + 2582,91
- 620 ≠ 1.032.939/400 t²
- 6,2 × 10² ≠ 0 × t + ½ × (-9/8) × t² + 2582,91
Conclusion:
6,2 × 10² ≠ 0 × t + ½ × (-9/8) × t² + 2582,91
Answer: (B) 3 times as fast
<u>Step-by-step explanation:</u>
rate of change is the "slope" between the given interval.
f(x) = 125(.9)ˣ
f(1) = 125(.9)¹
= 112.5
f(5) = 125(.9)⁵
= 73.8
********************
f(11) = 125(.9)¹¹
= 39.2
f(15) = 125(.9)¹⁵
= 25.7
********************
The rate of change from years 1 to 5 is approximately 3 times the rate of change from years 11 to 15.