quinnlow quinnlow

19-01-2018
Mathematics

contestada

-3x 2 + 2y 2 + 5xy - 2y + 5x 2 - 3y 2 if x=2 and y=-1

Respuesta :

19-01-2018

if [tex]x=2,y=1[/tex] the formula becomes:
[tex]-3(2)^2 + 2\times1^2 + 5(2) - 2 + 5(2)^2 - 3\times1^ 2\\=(-12+2)+(10-2)+(20-3)\\=(-10+8)+17\\=-2+17\\=15[/tex]

Answer Link

ACCESS MORE ACCESS MORE ACCESS MORE ACCESS MORE

Otras preguntas

1. Suppose P(A) = 0.14; P(B) = 0.7; and P(A and B) = 0.04 Find P(A or B). Can this really be a probability? If not, explain why not.

Underline the vowels and circle the letters that are unique to the Spanish alphabet in the following sentences. Then write the name of each letter in the senten

Jacob writes N, a three-digit multiple of 7, on a whiteboard, then covers one of the digits with a piece of paper. Julie knows that N is a multiple of 7. No mat

cite an example of imagery in the sacred breadfruit tree myth. which of the five senses does this example provoke? do you feel this type of imagery was necessa

Which of the following statements about metal elements is correct? Question 14 options: A) A metal atom can take an electron from a non-metal atom. B) Metals

The table shows conversions of common units of capacity. Units of Capacity Customary System Units Metric System Units 1 gallon 3.79 liters 1 quart 0.95 liters 1

Habla llegado a los veinte anos y eso significaba que ya i) Creía que sólo venía a verlo a él. 1) Siempre miraba por la ventana la misma imagen que aparecía afu

Why were the ancient paintings not durable?

Evaluate the following function: p(x) = 2(3)*-1 when p(2) A.2/3 B. 2 C. 2/9 D. 6

Write the equation of the line that passes through the points (-2,3) and (8,3).