annonomous12 annonomous12

03-06-2019
Mathematics

contestada

Evaluate the expression below when x= -1.
2x2 - 5
X + 9

Respuesta :

vikaminia2013 vikaminia2013

03-06-2019

Answer:

2x^2-5=-3

X+9=8

Step-by-step explanation:

Assuming those are 2 expressions:

2x^2-5

=2(-1)^2-5

=2-5

=-3

X+9

=-1+9

=8

Answer Link

Otras preguntas

you are building a birdhouse that will have a volume of 128 in^3. the birdhouse will have the dimensions shown a. write a polynomial that represents the volume

you are building a birdhouse that will have a volume of 128 in^3. the birdhouse will have the dimensions shown a. write a polynomial that represents the volume

se quiere embotellar 43,5 litros de leche en botellas de 0,750 de litro ¿cuantas botellas se necesitan?

What area of the long bone is covered with cartilage

in a geometric series t1=23,t3=92 and the sum of all of the terms of the series is 62813. How many terms are in the series

write the equation in function form then graph it 5x-2y=6 thx to the ppl who help

how did jazz demonstrate the independent spirit of the times?

What substance is made during transcription and where does it occur

What is the interquartile range of the data set below? Growth in feet of oak trees: 68,80,73,90,120,94,76,112,101,94,72(1) 22 (2) 28

algae do not cause disease or not