According to Hooke's law, a 30-N force stretches a spring by 0.73 m if the spring constant k is such that
30 N = k (0.73 m)
k = (30 N) / (0.73 m)
k ≈ 4.1 N/m
Answer:
Standard Error of the Mean = σ/√N = 
Explanation:
SEM is calculated by taking the standard deviation and dividing it by the square root of the sample size.
The probability of compound events refers to mathematical formulas and methods that are used to find out the likelihood that two independent events will happen.
<h3>What is compound probability?</h3>
Your question is incomplete so instead, I'll give an overview of compound events probability.
Compound events refer to independent events so when we look for compound event probability, we are trying to find out how possible it is that both these independent events happen.
The simplest method is by multiplying the probabilities of these two events with the product being the compound probability.
Find out more on compound probability at brainly.com/question/1553768.
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First of all you have two of them. Convert all inches to feet.
1 foot = 12 inches
2 feet = 24 inches.
30 inches is a little harder
30/12 = 2.5 feet. Now you are ready to figure the problem
Top A
=====
Area = L * w
L = 6 feet
w = 2 feet
A = 2 * 6 = 12 Square feet
Top B
====
Area = 2.5 * 4
Area = 10 square Feet
Total Area = 10 + 12= 22 square feet
Cost
====
Square feet * 42
Cost = 22 * 42
Cost = $924
