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

Joan purchased some lawn furniture at a local store. The furniture cost $489.99. She paid for it in eight equal 'installments of $76 each. How much interest did

For what does Longfellow thank the blacksmith in the poems final stanza? A. Longfellow thanks the blacksmith for living an exemplary life. B. Longfellow thank

Use the integers that are closest to the number in the middle. cube root of 108

An earthquake shook the town, and several buildings were destroyed. A. several buildings were destroyed B. shook the town, and several buildings C. An earthq

Should the Parthenon Marbles (Elgin Marbles) be returned to Greece?

Perfect verb tense 1. The girl _____to make the model of a volcano.

Graph the line that passes through the point (1, -1) and is parallel to another line which slope is 1.

I need extra help please 2-X^3-4+3y+y+y+5

My sister lives with my parents.(change into negative sentence

QUESTION 13 Find the distance (m) that an object would have to fall to gain 18.32m/s of velocity.