knightbrett122 knightbrett122
  • 03-04-2020
  • Mathematics
contestada

Evaluate the expression when b=-5.
b^2-8b-6

Respuesta :

Hi1315
Hi1315 Hi1315
  • 03-04-2020

Step-by-step explanation:

[tex] {b}^{2} + 8b - 6 \\ {5}^{2} - 8 \times 5 - 6 \\ 25 - 40 - 6 \\ = - 21[/tex]

Answer Link
Officialalehpeter
Officialalehpeter Officialalehpeter
  • 03-04-2020

Answer:

59

Step-by-step explanation:

This is a substitution question

So we will have to solve by substituting the given value into the equation

So let's solve

b^2-8b-6

And b is given to be-5

So let's substitute

(-5)^2-8(-5)-6

25+40-6

65-6

59

Therefore the final answer is 59

Answer Link

Otras preguntas

The variable in a relation who’s value depends on the value of the independent variable is called what?
The rulers of the West African kingdoms expanded their lands by
h=12, i=18, j=7; m<H
Under the feudal system, which of the following did lords grant to their vassals? PLEASE HELP
Medium sodas cost $1.25 and hot dogs cost $2.50. Natalie’s group brought in pizzas but is buying the drinks at concession stand. How many medium sodas can Natal
Im writing an essay and i need an honest opinion on the prompt please I will lgive a brainly and 20 points please asap. tell me if you think its ok to test on a
Which is the length of the hypotenuse of the triangle A. 94ft B. 214 ft C. 33ft D. 37 ft
Why should adults be more aware of a child/young adults being depressed?
PLEASE HELP ASAP! How does the distance between two objects affect the force of gravity? How is the Moon dependent on the Sun?
Which is equivalent to 10/12?options: 10/18 5/6 3/12 9/11