msfaybiiee9934
msfaybiiee9934 msfaybiiee9934
  • 22-02-2016
  • Mathematics
contestada

If the value of b is 7, then what is the value of the expression -3b2 + 25 = ? A. 122 B. –122 C. 172 D. 17

Respuesta :

Amphitrite1040
Amphitrite1040 Amphitrite1040
  • 22-02-2016
-3 × 39 + 25
-147 + 25 
=
-122

So this means your answer would be: B. -122 


Answer Link
Exvited
Exvited Exvited
  • 22-02-2016
We first need to substitute in the value of b, which is 7. 

[tex]-3(7)^2 + 25 \\ \\ -3 \times 49 + 25 \\ \\ -147 + 25 \\ \\ -122 \\ \\ [/tex]

The final result is, B) -122.
Answer Link

Otras preguntas

Descibe the roots of human rights abuses and the difficulties in preventing them
What led most directly to the fall of the Aztec empire? A The rise of the Inca B The establishment of tributes C The death of Moctezuma II D The
Find the measure of anglexin the figure below:O 95O 55O
Laurent saves money from his lawn service to buy a new $20,000 mower and trailer. He would like to buy the new equipment as soon as possible but only has $12,00
What is 4/8 in simplified form?
Descibe the roots of human rights abuses and the difficulties in preventing them
what is the solution to the proportion 4/12=10/x 30 4.8 3.3 3
list and describe 4 dating rules that you and your parents should discuss
What was an interesting feature of the New Economic Policy of Lenin?
What is the definition of imperialism?