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

Which equation of a line that includes the point (1,5) and has a slope of 3 in standard form
Ophelia’s mother is not present in this scene. Act 1, scene iii True or False
which ottoman leader became known as "the Conqueror"
Babysitting for 8 hours and making $72.00 or babysitting for 6 hours and making $57.00
what is the root of 121?
Pls find the coordinates!Thanks
Andre received $60 for his birthday and put it in his piggy bank. Each week, he puts 3 more dollars in his bank. The amount of money in dollars D in his bank is
Identify which region where witch hunting was at its peak
Please help will get brainiest!! 1. Part A Which theorems or postulates allow you to find the value of y? a) vertical angles theorem and triangle angle-sum the
Select the situation that describes an efficient use of resources. a.producing more cell phones than consumers demand b.producing the same number of cell phon