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

The atomic number of an element is based on the _____. number of electrons around its core mass of its nucleus number of protons in its nucleus number of neutro
How many inches are in 6.32 cm
Which layer surrounds the center of the earth? A: crust B: core C: mantle
Let f(x)=241+3e−1.3x . What is the point of maximum growth rate for the logistic function f(x) ? Round your answer to the nearest hundredth.
What happens to acetone molecules when you add heat to a beaker of liquid acetone?
Describe the perceptions that the town has about Boo Radley
The number of calories you burn depends on your weight. A 160​-pound person burns 237 calories during 30 minutes of tennis. Find the number of calories that a 1
What aspect of Washington's location does the peace Arch monument stand for?
Explain how waste energy is produced when an inefficient lightbulb converts electrical energy into radiant energy.
For the following graph,express the interval shown using interval notation?