naomiwebb0207
naomiwebb0207 naomiwebb0207
  • 23-10-2020
  • Mathematics
contestada

suppose f(x)=2x-5,g(x)=-3-1,and h(x) =2x2+x-7 calculate f(-7)​

Respuesta :

Ashraf82
Ashraf82 Ashraf82
  • 24-10-2020

Answer:

f(-7) = -19

Step-by-step explanation:

Let us solve the problem

∵ f(x) = 2x - 5

∵ g(x) = -3x - 1

∵ h(x) = 2x² + x - 7

→ We need to find f(-7), that means substitute x in f(x) by -7

∵ x in f(x) = -7

∵ f(x) = 2x - 5

∴ f(-7) = 2(-7) - 5

→ Calculate 2 × (-7)

∴ f(-7) = -14 - 5

→ Add them

∴ f(-7) = -19

Answer Link

Otras preguntas

Which formulas represent one ionic compound and one molecular compound?
SITUATION. My teacher gave me a situation and please answer honestly. Let say you weigh between 118-120 pounds. Your parents noticed you have gained weight and
can you tell me what is ballet?
In the stomach,a. liquids are absorbedb. bile acids dissolve the fats in foodc. food is converted to chymed. nutrients are absorbed through capillaries
I need to find the zeros of the function:f(x)=2x^2-5x-3
60% of what number is 72?
how many days are really in a year
A 10.0-milliliter sample of NaOH(aq) is neutralized by 40.0 milliliters of 0.50 M HCl. What is the molarity of the NaOH(aq)?
what is a 'dead heat'? plz... need help
what is a 'dead heat'? plz... need help