A number is chosen at random from 1 to 10. Find the probability of
not selecting 3 or a multiple of 3.

Mutiples of 3 between 1 and 10 include 3,6,9

So the chances are 70% you dont select any of those numbers.

Step-by-step explanation:

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2

1. 22

2. 1

3. 7

4. 18

step-by-step explanation

e2020 got it right