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

He began to move quickly: A. Past perfect tense B. present indefinite tense C. future tense D. Past indefinite tense
PLZ HELP MEEEEEE You will add at least five temporal words or phrases to your narrative and resubmit it. Print or save the Temporal Words and Phrases List to us
Plz help I don’t know
How are we able to see cells?​
what is the most common type of yoga practiced in western culture?
which MATH is a parallelogram 3 4 7 12
Penelope read 15 1/4 pages in 20 minutes. At what rate, in pages per hour, did she read?
8TH GRADE MATH g(3)=
Holaaaaa cómo está tu día
Helppp this one's need an explanation ;000