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

The following statements can be classified as describing only a hypothesis, only a theory, or both. Look at the following answer choices and determine which bel
What continent lies on 20 east and crosses the equator
The continuous removal and replacement of organic molecules in a cell are part of the process of
What are the systems that affect earth position and features
After the glorious revolution, whigs supported __________.
which planet is the coldest?
The graph of y=x^2 is reflected in the x-axis and translated 3 units right and 2 units up. Write an equation for the function in vertex form and in standard for
The food handler should guard against hotspots in cooling units by
The inequality of the most people that can be seated in the auditorium
what is released or absorbed whenever chemical bonds are broken