Answer:
108 m/s
Step-by-step explanation:
Given,
Initial velocity ( u ) = 3 m/s
Acceleration ( a ) = 15 m/s^2
Time ( t ) = 7 seconds
To find : Final velocity ( v ) = ?
Formula : -
v = u + at
v
= 3 + ( 15 ) ( 7 )
= 3 + 105
= 108 m/s
Answer:
51.3
Step-by-step explanation:
20-30: 100
30-40: 220-100 = 120
40-50: 350-220 = 130
50-60: 750-350 = 400
60-70: 950-750 = 200
70-80: 1000-950 = 50
Mean = sum(f × x) / sum(f)
= [25×100 + 35×120 + 45×130 + 55×400 + 65×200 + 75×50] ÷ 1000
= 51,300 ÷ 1000
= 51.3
Answer:
The first option....x^2-x-12
Step-by-step explanation:
Answer:
Step-by-step explanation:
42k³ + 28k² - 63k
The answer will be (2) 0 and 9
X^2(x-9)
X=0, and 9