Latih Diri 2.1b 1. Tentukan sama ada
(a) 3,5 dan 7 ialah faktor perdana bagi 30 atau bukan.
(b) 3, 5 dan 9 ialah faktor perdana bagi 54 atau bukan.
2. Senaraikan semua faktor perdana bagi setiap nombor yang berikut.
(a) 36
(4) 48
(C) 58
99
3. Ungkapkan setiap nombor yang berikut dalam bentuk pemfaktoran perdana.
(a) 42
(b) 96
(c) 120
(d) 135

olm türk yokmudrdyfsrug

b: |12 – x| ≤ 0.25

step-by-step explanation:      

let x be the possible lengths in inches, of the ribbons jaime cut.

we have been given that jaime is cutting strips of ribbon for a project. he tries to cut each piece to be 12 inches long, but sometimes he cuts it too long or too short by as much as 0.25 inch.  

we can represent this information in an inequality as:

by the definition of absolute value function we will get,

upon combining our inequalities we will get,

therefore, the inequality   describes all the possible lengths (x), in inches, of the ribbons jaime cut.

step-by-step explanation:

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

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