Mathematics, 23.04.2021 22:20 EnzoF17
A Pew Research study finds that 23% of Americans use only a cell phone, and no land line, for making phone calls (The Wall Street Journal, October 14, 2010). A year later, a researcher samples 200 Americans and finds that 51 of them use only cell phones for making phone calls. Set up the hypotheses in order to determine whether the proportion of Americans who solely use cell phones to make phone calls differs from 23%.
Answers: 3
Mathematics, 21.06.2019 22:30
]supplementary angles are two angles that add up to . • complementary angles are two angles that add up to degrees. • adjacent angles share a and a • congruent angles have the measure. • an triangle has one angle that is greater than 90 degrees. • a triangle with angles 45°, 45°, and 90° would be a triangle
Answers: 2
Mathematics, 21.06.2019 23:10
Use the distance formula to find the distance between (-3,5) and (3,1)
Answers: 1
A Pew Research study finds that 23% of Americans use only a cell phone, and no land line, for making...