Neslepe0rsm Neslepe0rsm

03-09-2016
Mathematics

contestada

what is the value of the expression 2x2 3xy – 4y2when x = 2 and y = –4? a. –80 b. –32 c. 32 d. 80

Respuesta :

nobillionaireNobley nobillionaireNobley

05-09-2016

2x^2 + 3xy - 4y^2 when x = 2 and y = -4
= 2(2)^2 + 3(2)(-4) - 4(-4)^2 = 2(4) + (-24) - 4(16) = 8 - 24 - 64 = -80

Answer Link

Otras preguntas

Guam · Philippines · Puerto Rico All of these territories came under the control of the United States following what conflict?

What is yahoo an example of?

Select the verbal; indicate whether it is a participle, gerund, or infinitive; and indicate how it functions in the sentence. I recall participating in the mara

square root of 56 raised to the seventh power

describe how good e-mail work habits increase workplace efficiency and productivity.

Escoge la traducción mejor para la oración siguiente. You refused to study. No quería estudiar. No querías estudiar. No quisiste estudiar No queriste estudiar.

Which sentence effectively combines the clauses to make Clause 1 dependent on Clause 2? Clause 1: Padmi looks frantically for her pen Clause 2: her sister calml

what is 92/100 as a fraction (simplest form)

Which one is correct? "Helen, the king of Sparta's wife" or "Helen, the wife of the king of Sparta"

I need help please help