Mathematics, 19.03.2020 20:37 jeremytheprimerapper
A civil engineer is analyzing the compressive strength of concrete. Compressive strength is normally distributed with σ² = 1000(psi)². A random sample of 12 specimens has a mean compressive strength ofx¯=3250psi
Construct a 95% two sided confidence interval on mean compressive strength.
Answers: 2
Mathematics, 21.06.2019 20:30
Merrida uses a pattern in the multiplication table below to find ratios that are equivalent to 7: 9. if merrida multiplies the first term, 7, by a factor of 6, what should she do to find the other term for the equivalent ratio? multiply 9 by 1. multiply 9 by 6. multiply 9 by 7. multiply 9 by 9.
Answers: 1
Mathematics, 22.06.2019 00:00
(50 ) mrs. julien’s and mrs. castillejo’s classes are selling cookie dough for a school fundraiser. customers can buy packages of macadamia nut chip cookie dough and packages of triple chocolate cookie dough. mrs. julien’s class sold 25 packages of macadamia nut chip cookie dough and 30 packages of triple chocolate cookie dough for a total of $221.25. mrs. castillejo’s class sold 5 packages of macadamia nut chip cookie dough and 45 packages of triple chocolate cookie dough for a total of $191.25. (a) write the system of equations that model the problem. be sure to explain which equation represents which situation. (b) find the cost of each type of cookie. show your work. (c) explain which method you used to solve the system and why you chose that method.
Answers: 1
Mathematics, 22.06.2019 01:20
Ahyperbola centered at the origin has a vertex at (-6,0) and a focus at (10,0)
Answers: 2
A civil engineer is analyzing the compressive strength of concrete. Compressive strength is normally...
English, 20.11.2021 03:40
Mathematics, 20.11.2021 03:40
Mathematics, 20.11.2021 03:40
Social Studies, 20.11.2021 03:40
Mathematics, 20.11.2021 03:40
Mathematics, 20.11.2021 03:40
Computers and Technology, 20.11.2021 03:40
Biology, 20.11.2021 03:40
Spanish, 20.11.2021 03:40