Answer:
Speed = 13.0m/s
Step-by-step explanation:
Given that velocity, v = (ai ± bj)m/s.
Because speed is scalar and has only magnitude, we can obtain it from the velocity by calculating only the magnitude given as:
...Equation 1
From the question, we were given the position vector, r
The velocity can be obtained by differentiating r with respect to time, t
We have that differentiation of a constant is 0.
At time t = 2.00s,
To obtain the speed, we use equation 1
<em>Therefore, the speed of the object at time t = 2.00s is 13.00m/s</em>
Convert the two fractions to decimals
Hope this helps!
The probability that at least one of them has an injection-site reaction is: 0.5356.
<h3>
Probability</h3>
Using this formula
Probability of atleast one= 1- (1- Proportion)^n
Where:
Proportion=.12
Sample size=n=6
Let plug in the formula
Probability of atleast one=1-(1-.12)^6
Probability of atleast one=1-(.88)^6
Probability of atleast one=1-.4644041
Probability of atleast one=0.53559
Probability of atleast one=0.5356 (Approximately)
Therefore the probability that at least one of them has an injection-site reaction is: 0.5356.
Learn more about probability here:brainly.com/question/20411748
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<span> 7,200,000 written in scientific notation
=7.2 x 10^6
answer is </span><span>D. 7.2 x 10^6</span>
Rounded to the nearest hundredth =4.47