Answer:
perimeter of the figure = 37 ft
Step-by-step explanation:
r = 1/2 × (12 - 3 - 3)
r = 1/2 × 6
r = 3 ft
circumference = 2 π r
circumference = 2 × 3.14 × 3
circumference = 18.84
perimeter of the figure = 3 + 3 + 3 + 3 + 3 + 3 + 18.84
perimeter of the figure = 36.84
perimeter of the figure = 37 ft
Answer:
59.85
Step-by-step explanation:
The scores on a mathematics exam have a mean of 70 and a stadard deviation of 7. Find the x-value that corresponds to the z-score -1.45.
We solve the above question using z score formula
z = (x-μ)/σ, where
x is the raw score
μ is the population mean = 70
σ is the population standard deviation = 7
z = -1.45
Hence:
-1.45 = x - 70/7
Cross Multiply
-1.45 × 7 = x - 70
-10.15 = x - 70
x = -10.15 + 70
x = 59.85
The equation of the graph is given by y = cos(0.4x) and has an amplitude of 1
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
Since the curve crosses the y-axis at y = 1, hence it is a cosine graph. It has a maximum of 1 and a minimum of negative 1, therefore the amplitude is 1
Also, the angular frequency = 2π * 1/5π = 0.4
The equation of the graph is given by y = cos(0.4x) and has an amplitude of 1
Find out more on equation at: brainly.com/question/2972832
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It would be simplified to 1/21
