Answer:
100+44
Step-by-step explanation:
Answer:
- h(t) = -16t^2 +188
- 3.4 seconds
Step-by-step explanation:
The usual equation for ballistic motion is ...
h(t) = -16t^2 +v0·t +s0
where v0 is the initial upward velocity, and s0 is the initial height above some reference point.
Here, we presume there is no initial vertical velocity, and the height is given as 188 ft above the river. Since we want the time to reach the river, we're solving ...
h(t) = -16t^2 +188
h(t) = 0
-16t^2 +188 = 0
t^2 -11.75 = 0
t = √11.75 ≈ 3.4
It takes about 3.4 seconds for the log to reach the river.
H=-6 is the answer after substituting
Answer:
Step-by-step explanation:
Numerical data are majorly in digit form (i.e numbers), while a categorical data deals with grouped data. Thus some probable answers to the questions are:
1. Categorical data.
ii. Possible responses could be: English breakfast or Continental breakfast.
2. Categorical data.
ii. Possible responses could be: either by road or by air transportation
3. Numerical data.
ii. Possible responses could be: 6 or 10
4. Categorical data.
ii. Possible responses could be: snacks or soft drink
5. Numerical data.
ii. Possible responses could be: 20 minutes or 30 minutes
Answer:
The correct option is;
69 cm
Step-by-step explanation:
The z-score, or standard score is a measure of how far a data is from the mean
The z-score, is given by the relation;
![z = \dfrac{x- \mu}{\sigma}](https://tex.z-dn.net/?f=z%20%3D%20%5Cdfrac%7Bx-%20%5Cmu%7D%7B%5Csigma%7D)
Z = Standard score
x = Value observed
μ = The mean height of the plants = 52.5 cm
σ = Standard deviation = 7.2 cm
Given that the z-score = 2.25, we have;
![2.25 = \dfrac{x- 52.5}{7.2}](https://tex.z-dn.net/?f=2.25%20%3D%20%5Cdfrac%7Bx-%2052.5%7D%7B7.2%7D)
Therefore, x = 7.2 × 2.25 + 52.5 = 68.7 cm ≈ 69 cm
Therefore, the minimum required height for this type of plant to be displayed in the main lobby is 69 cm.