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 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

Who was the cause of Abraham Lincoln's death?
Which New Deal program brought electricity to rural areas of the Southeast?
When you add or subtract monomials, you must___________ to simplify the expression.(Example: 6x^3-2x^3) A. Multiply by the reciprocal B. Collect like terms C. M
Which equation has solution X equals -3
Please help This is hard and I need it quick
How was the Louisiana purchase a gift and a burden on the United States
Muscular arteries A) Have a tunica media with a high density of elastic fibers B) Are larger than elastic arteries and smaller than arterioles Collect blood f
Help ASAP plzzzzzzzzzzzzzz
A national park is home to large populations of mountain lions, deer, rabbits, and grass. Recently, park rangers decided to introduce wolves to the park. Mount
What color of light has the most energy? A. Blue B. Red C. Green