Answer:
(4x+12)=90
x= 19.5
Step-by-step explanation:
By adding all the numbers and dividing by 7 ( the amount of numbers) you know that the answer will be about 166.3
……….Yes it is true that trapezoid is a polygon that has two bases
Answer:
(C) Sample: the 120 students surveyed. Population: the 1200 students at the high school. Parameter of interest: the average number of hours a student at this high school sleeps per night.
Step-by-step explanation:
The correct answer is (C). The sample is a subset of the population, and the parameter is a characteristic of the population of interest.
Estimation: about 6,000 (90x70=6300)
Answer (product): 6256
