Answer:
27
Step-by-step explanation:
a + b = 7 ....eq 1
a - b = 3 ....eq 2
solve simultaneously using elimination method
add eq 2 to eq 1
a + b = 7
+
a - b = 3
2a = 10
a = 5
substitute the value of a in eq 1
5 + b = 7
subtract 5 from both sides
5 - 5 + b = 7- 5
b = 2
Now, slot in the values of both a and b
3^a÷3^b
we will solve using PEDMAS
3^5 / 3^2
27
Answer:B. As the right hand side value increases, the objective value function will increase
Step-by-step explanation: The dual value also known as the shadow price of a commodity that is not commonly priced in the market, the price of the commodity is not known. The dual value of a constraint can also be described as the rate of change of the objective function to the constant value which is placed at the right hand side of that constraint. The shadow price for a constraint in a maximization problem is Described as the Increase experienced at the Objective function when the right hand side value increases.
Answer:
0.945200708
Step-by-step explanation:
In this question, we are asked to calculate the probability that a person selected at random would live less than 65.
To solve this problem, what we need to do is to first calculate the z-score.
Mathematically, z = (x-mean)/standard deviation
According to the question, the mean is 53 years and the standard deviation is 7.5
Substituting these values in the z-score equation:
Z-score = (65-53)/7.5 = 12/7.5 = 1.6
We proceed to use the z-score table to obtain the probability. Using the table, z score of 1.6 corresponds to a probability of
0.945200708
12-14= -2
I hope this helps :) haha I was confused why you would need to know what 12-14 is
