autumncoloredleaves autumncoloredleaves

23-10-2018
Mathematics

contestada

20 POINTS!!!

I need help urgently with the question in the picture below!

20 POINTS I need help urgently with the question in the picture below class=

Respuesta :

23-10-2018

let f(x)=ax+b
11a+b=23.55
12a+b=25.35

solve: a=1.8 b=3.75
so ..

f(x)=1.8x+3.75
if x=31 , f(x)=59.55

Answer Link

Otras preguntas

Find the next four terms of the arithmetic sequence 11,15,19...

What is the acceleration of a proton moving with a speed of 6.5 m/s at right angles to a magnetic field of 1.8 t ?

the article of confederation cteated a

Which of the following statements BEST defines the word temperance? A. the ability to control one's anger when drinking alcohol B. the ability to change one's

how long did it take to reach the bottom of the slope

Brad chooses to enter relationships only with people who share his interests in sports and work. whenever he finds himself having less in common with a friend,

find the slope and y intercept of -7x-4y=-20

A flagpole casts a shadow 23.5 feet long. At the same time of day, Mrs.Gilbert, who is 5.5 feet tall, casts a shadow that is 7.5 feet long. How tall in feet is

In what way did industrialization in the United States contribute to the rise of the second Ku Klux Klan in the early twentieth century?

You purchase a ball.you hand the cashier a five dollar bill.what will your change be?the ball cost $0.98