Adding parenthesis around calculations indicates which calculations should be performed first before following the typical order of operations. Correct answer: DThe order of operations is the order in which all algebraic expressions should be simplified is the following: First should be calculated expressions with parentheses, then exponents (and Roots) means power
, then multiplication & Division and at the end Addition & Subtraction.
Answer:
D
Explanation:
Two dimensional array contain both rows and columns. Each row represented one record and each column represent one filed in that record.
for ex: int grades[5][3];
here array grades contains 5 rows and in each row we have 3 columns
if we have grades[i][j] then " i " represents number of rows and j represents the number of columns in that row.
j<grades[i].length represents i=0 to 2[here no of columns are 3, array index starts from 0 to 2]
The Answer is D
Answer:
a. Convenience
b. Random
c. Stratified
d. Systematic
Explanation:
Types of sampling:
The selection of sample is arbitrary and each member has an equal chance of selection.
This selection does not take probability of selection into account rather focuses on the convenience and proximity of the member for selection.
An ordered system is decided to choose the members for this sample.
This sampling plan divided the population into groups, called clusters. A cluster is then randomly selected from the selected population.
The members of the population are divided into groups, called strata. A random sample is drawn from each strata.
Answer:
if its a test try to just do it on your own ,you got nothing to lose from a test, its just to understand what you know on the concepts, but if you would still like answers just search around the net or here and you can always post the questions to ask people for help someone would eventually answer your questions but then beware of bots that post links as answer!
Explanation:
Answer:
Here is a UpdateTimeWindow() method with parameters timeStart, timeEnd, and offsetAmount
// the timeEnd and timeStart variables are passed by pointer
void UpdateTimeWindow(int* timeStart, int* timeEnd, int offsetAmount){
// this can also be written as *timeStart = *timeStart + offsetAmount;
*timeStart += offsetAmount; //adds value of offsetAmount to that of //timeStart
// this can also be written as *timeEnd = *timeEnd + offsetAmount;
*timeEnd += offsetAmount; } //adds value of offsetAmount to that of //timeEnd
Explanation:
The function has three int parameters timeStart, timeEnd, and offsetAmount.
First two parameters timeStart and End are passed by pointer. You can see the asterisk sign with them. Then in the body of the function there are two statements *timeStart += offsetAmount; and *End+= offsetAmount; in these statements the offsetAmount is added to the each of the two parameters timeStart and timeEnd.
