11.3x + 7.2 = 86.3
11.3x + 7.2 (-7.2) = 86.3 (-7.2)
11.3x = 79.1
11.3x/11.3 = 79.1/11.3
x = 7
7 is your answer
hope this helps
Answer: the first picture is 36 cm^2.
Step-by-step explanation:
It's 36 cm^2 because you need to multiply the length and breadth which is 12*3= 36. Hope this helped !
Answer:
Option c.
Step-by-step explanation:
Confidence interval refers to an interval such that there is a probability that the value of a parameter lies within that interval.
Therefore, 
the confidence interval of the mean means that there is a probability that the value of a parameter lies within that confidence interval.
So, option c. is correct
50 calories are consumed per milefor 15 miles per hour, calories consumed
= 50*15
=750 calories per hour,
this is equal to 750/3600
= 0.2083 calories/second, given that,
1 calorie per sec
= 4.19 watt, the average power output
= 0.2083*4.19
= 0.873 Watts
1 metric ton is 1000 kilograms
2 metric tons is 2000 kg.
60 kilograms + 70 kilograms = 130 kilograms
2000 kg. + 130 kg. = 2130 kg.
The truck weighs 2130 kilograms.
