Answer:
the second one (Diego)
Step-by-step explanation:
7a-3a
5b+4b
Answer:
3520 ft/min
Step-by-step explanation:
40 mi/h = (40 mi/h)×(5280 ft/mi)×(1 h)/(60 min) = 3520 ft/min
_____
Each conversion factor has a value of 1 (numerator = denominator), so changes the units without changing the speed.
Answer:
3.5% decrease means 96.5% remaining
0.965(16)
4.25% decrease means 95.75% remaining
0.9575(0.965(16))
= 14.7838 grams
4(d-1), if you expand it gets 4d-4.
Determinant = b² - 4ac = (-10)² + 4*1*25 = 100 - 100 = 0
So it has 1 solution.
Answer is D
