Answer:
I make it 6 cm diameter (well....5.97 cm really, but it depends how many places you take π to!).
Explanation:
You have been given density (d) and mass (m), so first you can determine volume (v).
<span>d=<span>m/v</span></span> therefore <span>v=<span>m/d</span></span> = <span>3000/2.33</span> = 1287.55 <span>c<span>m^3</span></span>
Now you have the volume and the length (L) from which you can work out the cross sectional area, <span>π.<span>r2</span></span>, and from that the diameter.
Volume v =<span>π.<span>r2</span>.L</span> therefore r = <span>√<span>v/<span>π.L</span></span></span> and diameter D = 2r = <span>√(<span>v<span>π.L)</span></span></span>x 2.
So plugging in the numbers gives: D = <span>√(<span>1287.55/<span>3.142X46)</span></span></span> X2 = 5.97 cm.
The answer is 3. Point and line symmetry
Answer: D. Predictive validity
Step-by-step explanation: Predictive validity can be explained as a method of determining the degree or level of correctness of a prediction using pre-existing information or data and values obtained from the actual measurement.
In the scenario above, the researchers investigates the correlation or relationship between the predicted value obtained using a pre- admission HESI examination, high school GPA, and SAT scores and the actual grade received upon completion of the first year. This process is to analyze or determine the validity of our prediction.
Answer:
-13/5
Step-by-step explanation:
