Answer:
The product of y and 9 is less than 21
Step-by-step explanation:
It is not possible to have an answer that equals 21 unless it is a decimal which is unlikely to happen.
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Answer:
Take your product denominator and divide it by the original. 48÷8=6
Since the denominator was increased by a scale factor of 6, the numerator must also be increased by a scale factor of 6 in order to keep the 2 fractions equal. 7×6=42
Hence, your answer is 42/48
Hope this helps?
Answer: 42
Answer:
It is C I am good at math
Step-by-step explanation:
Given:
u = 44 ft/s, the initial upward velocity of the ball
The height in feet after t seconds is
y = 44t - 16t²
Initial time is t₁ = 2 s.
The height at 2 s is
h₁ = 44*2 - 16*(2²) = 24 ft
(i) When the duration is 0.5 s, the final time is
t₂ = 2 +0.5 = 2.5
The height at 2.5 s is
h₂ = 44*2.5 - 16(2.5²) = 10 ft
The average velocity is
v = (10 - 24 ft)/(0.5 s) = -28 ft/s
Answer: - 28 ft/s
(ii) When the duration is 001s, then t₂ = 2.1 s
h₂ = 44*2.1 - 16(2.1²) = 21.84 ft
The average velocity is
v = (21.84 - 24)/0.1 = -21.6 ft/s
Answer: - 21.6 ft/s
(iii) When the duration is 0.05s, t₂ = 2.05 s
h₂ = 44*2.05 - 16(2.05²) = 22.96
Average velocity is
v = (22.96 - 24)/.05 = - 20.8 ft/s
Answer: - 20.8 ft/s
(iv) When the duration is 0.01 s, t₂ = 2.01 s
h₂ = 44*201 - 16(2.01²) = 23.7984 ft
v = (23.7984 - 24)/0.01 = - 20.16 ft/s
Answer: - 20.16 ft/s
As the duration gets smaller, the computed average velocity approaches the true value at 2 s, because it is the derivative of y with respect to t.