2(x-2)+(x+3)
=(2x-4)+(x+3)
=2x-4+x+3
=3x-1
Answer:
Randomized block design
Step-by-step explanation:
In the scenario described above, the subjects which are the different car types are grouped into fixed units of 4 called blocks with each unit then assigned randomly to a particular treatment condition, which are the 4 different types of tire. In the end, the mean mileage for each block is taken and compared to that of the other blocks. This type of research design improves the reliability of the result obtained as it also eliminates the occurrence of systematic error in the course of our experiment.
The geometric sequence common ratio can be found by r = tn+1/tn
Let tn =- 6
Let t_n+1 = 2
r = 2/-6 = - 1/3
When you want to round up or down numbers focus on only two digits,which is the digit in place that you are rounding to and the digit to it's immediate right which tells you whether to round up or down.When the number you are rounding is between 0-4, you round down to the next lowest number. When the number is 5-9,you round the number up to the next highest number.
For example: If you have 25 and you want to round it up then it will be rounded up to 3 because 5 can be rounded up to the next number which is 2 to make it 3.But when you have 23,then you can't round it up which means you will have to round it down to 20 since the 3 behind the 2 can't round up.
I hope this helps......
Answer:
the area is 60
Step-by-step explanation:
Triangle area fourmula is (h*b)/2
8*15=120 120/2=60
A=60
