a number is divisible by 3 if the sum of its digits is divisible by 3. 375, for instance, is divisible by 3 since sum of its digits (3+7+5) is 15. And 15 is divisible by 3. 1+2=3 and 3 is divisible by 3
Answer:
sqrt(29)
Step-by-step explanation:
We can find MN using the Pythagorean theorem
The height is 2 and the length is 5
a^2 + b^2 = c^2
2^2 + 5^2 = MN ^2
4 + 25 = MN^2
29 = MN ^2
taking the square root of each side
sqrt(29) = MN
9.26%
total tiles 36,
4 will be test so probability of testing 4/36
non defective =30
probability of testing non defective 4/36 x 30/36 x 100=
9.26%
-3x+20=2
move +20 to the other side
sign changes from +20 to -20
-3x+20-20= 2-20
-3x= 2-20
-3x= -18
divide both sides by -3
to get +x and x by itself
-3x/-3= -18/-3
Answer:
x= 6
