Answer:
The probability is 406/625
Step-by-step explanation:
If they are of different materials, we have the following combinations of selection;
(gold and silver) or ( silver and titanium) or (gold and titanium )
The number of earrings present is 13 + 10 + 12 = 25
Probability of selecting a gold earring is 13/25
Probability of a silver is 10/25
Probability of a titanium is 12/25
Substituting these into the probabilities, we have;
(13/25 * 10/25) + (10/25 * 12/25) + (13/25 * 12/25)
= 130/625 + 120/625 + 156/625 = 406/625
Answer:
x= 13
Step-by-step explanation:
−4/9(18x − 36) = −88
we need to solve the equation for x

First we remove the fraction -4/9
Multiply by -9/4 on both sides

18x -36 = 198
Now add 36 on both sides
18x = 234
Divide both sides by 18
x = 13
Well 361 is 19^2 so the square root of 361 is 19 and is not irrational.
Therefore, the square root of 254 is irrational.
Answer:
x= 7.41 (3 s.f.)
y= 9.53 (3 s.f.)
∠B= 51°
Step-by-step explanation:
Please see the attached picture for the full solution.