amydunn2004
amydunn2004 amydunn2004
  • 02-06-2017
  • Mathematics
contestada

Find the value of 2a² + 5b² when a= -6 and b= 2

Respuesta :

PHDFlopper
PHDFlopper PHDFlopper
  • 02-06-2017
2(-6^2)+5(2^2)
2(36)+5(4)
72+20
92
Answer Link
Susuu
Susuu Susuu
  • 02-06-2017
Plug in the values -6 into 'a' and 2 into 'b'. 

2a² + 5b² 
2(-6)² + 5(2)²
First solve the exponents  ⇒  -6² means -6 * -6, which equals 36
2² = 2*2 = 4

2(36) + 5(4)
2*36 → 72
5*4 = 20
72 + 20 = 92  

Final answer → 92
Answer Link

Otras preguntas

What is the main function of digestion?
A town in east Texas received 10 inches of rain in two weeks. If it kept raining at this rate for a 31-day month, how much rain did the town receive?
In a certain recipe that produces enough for 8 servings, 1/2 cup of sugar is required. If you were asked to expand this recipe so that it could serve 26 people,
What were the reasons why the Spanish colonists settled in America?
What is a organelle
which of these candidates did not tie in the election of 1800? a)John Adams b)Aaron Burr
Prenatal care is vital for pregnant women as blood tests and weight gain are regularly performed.
If a = 2, b = 3, and c = 1, what is the value of a + b + c? 6 2 0 4 6
nine twentieths is equal
Type of money designed by Thomas Jefferson