yordanosniguse yordanosniguse

26-01-2021
Geography

contestada

Let f(x)=5x-4,g(x)=3x+7then find the value of k if (fog)(k)=7

Respuesta :

ChoiSungHyun ChoiSungHyun

26-01-2021

Explanation:

(f o g)(x)

= f[g(x)]

= f(3x + 7)

= 5(3x + 7) - 4

= 15x + 31.

When (f o g)(k) = 7, 15k + 31 = 7.

=> 15k = -24, k = -8/5 = -1.6.

Answer Link

Otras preguntas

Phil is riding his bike. He rides 25 miles in 2 hours, 37.5 miles in 3 hours, and 50 miles in 4 hours. Find the constant of proportionality and write an equatio

The number 57,733 contains two sets of digits in which one,digit is ten times as great than the other.What are the values of the digit in each set

A scale distance of 3 centimeters on a map represents an actual distance of 51 feet. How many centimeters on the map would represent a distance of 187 f

a line is tangent to the circle x^2+y^2=41, at the point (-4,-5) find the slope of the radius from the center to the point of tangency write the equation of th

A coin is tossed 20 times. It lands heads 4 times. Compare the experimental probability to its theoretical probability. It the probabilities are not close, expl

A horizontal force of 200N is applied to a 55kg cart across a 10m level surface. If the cart accelerates at 2.0m/s^2, then what is the work done by the force o

what are some adjectives for describing a tent

Which group wanted Hayes to remove troops from the South?

What is 15/100 in simplest form

the nerve pathway linking the heat receptor in the hand with the arm muscle is about 1.5 meters in length. it would take the nervous impulse 0.02 seconds to tra