Mathematics, 16.12.2021 23:20 elsauceomotho
Which of the following systems of equations is an example of one where substitution is the best method?
A.) x = 4
y = 11
B.) y = 2/7x + 11
3x - 4y = -24
C.) 5x + 3y = 15
-3x = 6y = 12
D.) 4x - 5y = 20
-6x + 2y = -42
Answers: 1
Mathematics, 21.06.2019 20:30
Ametal rod is 2/5 meters long. it will be cut into pieces that are each 1/30 meters long. how many pieces will be made from the rod?
Answers: 1
Mathematics, 22.06.2019 03:30
Sera sells t-shirts at the beach. she believes the price of a t-shirt and the number of t-shirts sold are related. she has been experimenting with different prices for the t-shirts. she has collected a data set with five pairs of data; each consists of the price of a t-shirt and the number of shirts sold. the independent variable, which will go on the x-axis, is . the dependent variable, which will go on the y-axis, is the
Answers: 3
Mathematics, 22.06.2019 04:20
The weibull distribution is widely used in statistical problems relating to aging of solid insulating materials subjected to aging and stress. use this distribution as a model for time (in hours) to failure of solid insulating specimens subjected to ac voltage. the values of the parameters depend on the voltage and temperature; suppose α = 2.5 and β = 190. (a) what is the probability that a specimen's lifetime is at most 250? less than 250? more than 300? (round your answers to four decimal places.) at most 250 less than 250 more than 300 (b) what is the probability that a specimen's lifetime is between 100 and 250? (round your answer to four decimal places.) (c) what value is such that exactly 50% of all specimens have lifetimes exceeding that value? (round your answer to three decimal places.) hr
Answers: 2
Which of the following systems of equations is an example of one where substitution is the best meth...
Biology, 04.11.2020 01:00
Mathematics, 04.11.2020 01:00
Biology, 04.11.2020 01:00
Geography, 04.11.2020 01:00
Business, 04.11.2020 01:00
Biology, 04.11.2020 01:00
Mathematics, 04.11.2020 01:00
History, 04.11.2020 01:00
Mathematics, 04.11.2020 01:00
Mathematics, 04.11.2020 01:00
English, 04.11.2020 01:00
Mathematics, 04.11.2020 01:00
Social Studies, 04.11.2020 01:00