Mathematics, 27.05.2021 19:10 rhd112458
R10. Un libro y una revista cuestan $140. Se sabe que el costo
del libro menos el doble del costo de la revista es igual a $20,
¿cuánto cuestan el libro y la revista? *
A) El libro cuesta $90 y la revista $50.
B) El libro cuesta $120 y la revista $20
Ο Ο Ο Ο
O C) El libro cuesta $ 100 y la revista $40.
O. D) El libro cuesta $110 y la revista $45.
R11. ¿Cuál es el desarrollo plano que permite la correcta
construcción de un cono? *
Answers: 1
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
Answers: 1
Mathematics, 21.06.2019 19:30
When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41
Answers: 1
Mathematics, 21.06.2019 23:00
40 points. given: two congruent angles ∠c and ∠r are supplementary. prove: ∠r and ∠c are both right angles. it doesn't have to be exactly 10 rows.statements reasons1. 1. 2. 2. 3. 3. 4. 4. 5. 5. 6. 6. 7. 7. 8. 8. 9. 9. 10. 10.
Answers: 2
Mathematics, 22.06.2019 02:00
Which graph correctly represents the equation y=−4x−3? guys me iam not trying to fail summer school and will offer 40 points for who ever me with the next 3 problems and will give brainlest
Answers: 1
R10. Un libro y una revista cuestan $140. Se sabe que el costo
del libro menos el doble del costo d...
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