Answer:
B
Explanation:
I added the 1 to 4 and the 5 or more to get the numerator and then plugged in 100 as the denominator to get the probability.
p.s. have the loveliest birthday ever and good luck on your SAT's
Answer:
Pop. variance=16
Pop. Stand. deviation =4
Explanation:
x x^2
8 64
11 121
15 225
17 289
<u>19 361</u>
70 1060
Mean 14 (70/5)
Pop.Variance 16.00 (1060/5 - (14^2)
Pop.Standard Dev. 4 (square root of 16)
Answer: Twice the previous time would be taken to reach the same speed v with the puck of mass 2m.
Explanation:
Let a Force pushes the hockey puck of mass m.
Then acceleration, a= \frac{F}{m}a=mF
From the equation of motion,
\begin{gathered}\➪ v=u+at\\ v=0+\frac{F}{m}\Delta t\end{gathered}⇒v=u+atv=0+mFΔt ......(1)
In the second case, when mass is 2m, then acceleration,
a'=\frac{F}{2m}a′=2mF
and t' is the time taken.
The final speed is v,
\begin{gathered}\➪ v=0+ a't'\\ \➪ \frac {F}{m}\Delta t=\frac{F}{2m}t'\\ \➪ t'= 2\Delta t\end{gathered}⇒v=0+a′t′⇒mFΔt=2mFt′⇒t′=2Δt using equation (1)
Hence, it would take two times the previous amount of time to push the pluck of double mass.
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Y^2+2y+1=49. That’s the next answer
The most important means by which capillary exchange occurs is by diffusion.
<h3>What is Simple diffusion?</h3>
Simple diffusion is a type of passive transport of substances across the cell membrane. It is a process that occurs from the region where the particles are more concentrated to regions where their concentration is lower, until an equilibrium in the concentrations is reached. Thus, diffusion occurs in favor of a concentration gradient. With this, there is no energy expenditure and no need for a carrier for the substances.
See more about passive transport at: brainly.com/question/13542102
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