subject
Mathematics, 13.06.2021 20:20 FortniteB

2 (c) Screen images are made up of units of light called pixels.
Pixels per square inch (PPI) is a measure of image quality.
The higher the pixels per square inch, the better the image quality.
N
PP12 =
A
Where: N is the number of pixels
A is the area of the screen in square inches
Liam's old screen has a PP12 value of 9800
He wants to buy a new screen with a better image quality.
Liam sees a rectangular screen that has:
a width of 101.6 cm
width: height ratio of 16:9
8.28 million pixels
He works out that this will have a better image quality than his old screen.
Is Liam correct? Show your working.
Use the conversion: 1 inch = 2.54 cm
[4 marks]​

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 16:00
Sam makes his sales calls according to a pattern. he travels either north or south depending on the calendar. some of his past trips were as follows: on february 17, april 24, june 10, september 19, and november 3 he drove north. on february 28, may 25, august 22, november 20, and december 18, he drove south. describe sams' pattern. in which direction will sam drive on oct4 and oct 24?
Answers: 1
question
Mathematics, 21.06.2019 17:00
If i have a 24 in loaf of bread and i cut it into two pieces one 9 in how long was the other
Answers: 2
question
Mathematics, 21.06.2019 17:40
The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?
Answers: 2
question
Mathematics, 21.06.2019 18:50
If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?
Answers: 2
You know the right answer?
2 (c) Screen images are made up of units of light called pixels.
Pixels per square inch (PPI)...
Questions
question
Health, 17.01.2020 12:31
question
Mathematics, 17.01.2020 12:31