avaleeisawesomesauce avaleeisawesomesauce

09-06-2022
Mathematics

contestada

if c = 3k + 4 and d = 7 + 9k^2, what is d in terms of c?

a) c^2 + 8c + 23
b) c^2 - 8c + 23
c) 9c^2 - 108c +144
d) 9c^2 - 108c + 148
e) 9c^2 + 108c + 148

Respuesta :

reinhard10158 reinhard10158

10-06-2022

Step-by-step explanation:

c = 3k + 4

c - 4 = 3k

k = (c-4)/3

this we use in the second equation

d = 7 + 9k² = 7 + 9((c-4)/3)² = 7 + 9((c² - 8c + 16)/9) =

= 7 + c² - 8c + 16 = c² - 8c + 23

Answer Link

Otras preguntas

How is correctly citing in a speech different from in a paper? A In a paper, the reader only needs to know the name of the source. B In a paper, the reader is

How is correctly citing in a speech different from in a paper? A In a paper, the reader only needs to know the name of the source. B In a paper, the reader is

Which is the first step in a thermal printer printing process? A feed assembly feeds the paper through the printer Rollers grab paper from a tray The fuser heat

Rebecca had her daughter, Nicole, when she was a teenager. Rebecca has never felt close to her daughter and she is unresponsive to Nicole's physical and psychol

In order to generate quick revenue, Helium Corp., an electronics manufacturing firm makes a technical improvement to one of its competitor's ERP offerings. This

What sport has a high death rate

Charlotte uses a 50% off coupon when she buys a dress the original price of the dress is $45 how much money does Charlotte save by using the coupon

28 is what percent of 56?

________ are molecules that form the core structure of cell membranes and micelles. A) Phospholipids B) Triglycerides C) Steroids D) Saturated fatty acids

When You are Old by W. B. Yeats When you are old and grey and full of sleep, And nodding by the fire, take down this book, And slowly read, and dream of the sof