Mark drove for 5 hrs
pranav drove for 3 hrs
Distance = speed x time
Pranav =50kmh x 3hrs
= 150 km
* note that they drove the same distance
Speed of mark=distance / time
=150 km / 5hrs
= 30 kmh
Answer:
2x+7=-3+2x multiply what’s in the bracket by the negative sign
Collect like terms
2x-2x=-3-7, so
0=-10
Step-by-step explanation:
I hope this is the answer, if it helped please give me brainliest
If you need the answer as a fraction then it is 5/4
if you need it as a decimal it is 1.25
Answer:
11/6
Step-by-step explanation:
Answer:
The correct option is;
A. A set of nine data pairs with a correlation coefficient r = -0.4
Step-by-step explanation:
In statistical analysis, it is important to make use of an adequate sample size in order to arrive at a valid result. An analysis with a very small sample size can provide misleading results
When performing regression analysis it is generally accepted by researchers that each variable should have at least 10 observations.
Therefore, the data set having nine data pairs with a negative correlation of -0.4 will provide the most valid result that can then be used for generalization about the larger statistical population.
