camillxa
camillxa camillxa
  • 05-04-2020
  • Mathematics
contestada

Evaluate 2x(second power)-1 when x = 3.
А. 35
В. 5
C. 25
D. 17

Respuesta :

igoroleshko156
igoroleshko156 igoroleshko156
  • 05-04-2020

Answer:

Option D, 17

Step-by-step explanation:

Step 1:  Set x to 3

[tex]2x^2 - 1[/tex]

[tex]2(3)^2 - 1[/tex]

[tex]2(9) - 1[/tex]

[tex]18 - 1[/tex]

[tex]17[/tex]

Answer: Option D, 17

Answer Link
abiolatolu90
abiolatolu90 abiolatolu90
  • 05-04-2020

Answer:

The answer is 17

Step-by-step explanation:

2x² - 1

When x = 3

2(3²) - 1

2*9 - 1

18 - 1

= 17

Answer Link

Otras preguntas

Hz.Mohammed ,what year were you born ?
Which quantities are scalar? (1) speed and work (2) velocity and force (3) distance and acceleration (4) momentum and power
What is iron deficiency anemia
factor the common factor out of each expression.
Based on the ranking from the 2000 census, which pair of states had the greatest number of electors in the 2008 presidential election? (1) Florida and Californi
What are some facts about webmasters?
True or False - A social revolution accompanied the 1911 Republican Revolution.
Use distributive property to rewrite 9(10+x) A. 19+9x B. 90+9x C. 90+x D. 10+9x
Starfish, flatworms, and sponges may be cut into pieces, and the individual parts will grow new individual animals by means of the process of _____. fragmentati
The Supreme Court decision in Marbury v. Madison (1803) strengthened the constitutional principle of separation of powers by (1) defining the Court’s role in im