To answer all these questions you will use the formula A= bh. In words this means to find the area you multiply the base times the height. For each of these examples, you are given the area and you have to find the missing dimension. Each of these will be set up as four separate equations that need solved. Here they are 0.225=0.6h, 4.86=1.8b, 63=12b, and 2.5=5h. To solve all four of these and show evidence, you were divided the area by the dimension that you know. 0.225÷0.6, 4.86÷1.8, 63÷12, and 2.5÷5. With any multiplication equation if you know the total, you have to divide to find the missing part. The answers for each of these in order that they are presented our 3.75 miles, 2.7 yards, 5.25 m, and 0.5 km. None of the answers are square units because they are only giving a one dimensional measurement.
Answer: Observational study
Step-by-step explanation:
The study illustrated in the question is an observational study. It is referred to as an observational study, because in this case, the price of the individual cereals us not being controlled by the students. They've no control over it.
If it was an experiment, there'll have been a control group and the students will have control over the price. Also, the sampling methods used here is a systematic random sampling.
Answer:
B. 6.2
Step-by-step explanation:
The calculation is done by hand and verified by a TI-84 calculator.
Depends on what you are talking about, what is A,x,c and b.
If A is an invertible matrix and x,c,b are vectors of correct dimensions you get
Ax=b+c
x=A^(-1)(b+c)
if x is a variable and A,c,b are constants you get
Ax=b+c
x=(b+c)/A
