Answer: 5%
Step-by-step explanation:
Probability for any event = 
Given: Number of defective calculators = 25
Total calculators = 500
The probability that a calculator chosen at random will be defective= 


Hence, the required probability = 5%
Answer:
~29.99
Step-by-step explanation:
We know that the graph of g(x) is the result of a shift of 2 units down from f(x).
Then, f(x) and g(x) are related by:

Taking the derivative:

This is because the derivative of a constant number is 0. Finally, evaluating at x = 2:
Answer:
12
Step-by-step explanation:
PEMDAS
5+2*5-3
2*5=10
10+5=15
15-3=12