, 21.10.2020 23:01 mistymjoy

# Dina wrote the expression 65 + 45. Chung used the greatest common factor of those two numbers to write an equivalent expression. Which expression did Chung write? 5(13 + 9) 13(5 + 2) 5(13 + 3) 15(5 + 3)

### Another question on Mathematics

Mathematics, 21.06.2019 17:30
Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label
Mathematics, 21.06.2019 18:20
Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0