If a random sample of 20 persons weighed 3,460, the sample mean x-bar would be 3460/20 = 173 pounds.
The z-score for 173 pounds is given by:
Referring to a standard normal distribution table, and using z = 0.66, we find:
Therefore
The answer is: 0.2546
The coordinates of A is (-1, 2)
You just first move over to the left on the X axis making your x coordinate a negative. So when you you get to -1 you go up to where A is, which is at positive 2. Your y coordinate is positive because you're moving up on the Y axis and not down.
Area: 78.5 inches squared
Circumference: 31.4
The cylinder's total surface area includes the area of the curving surface as well as the areas of the two circle-shaped bases of the cylinder.
The area of the two bases and the area of the curved surface are added to determine the cylinder's total surface area. Consequently, the following is the formula for the cylinder's total surface area:
Area of the two bases plus the area of the curved surface equals the cylinder's total surface area. Due to the cylinder's round bottoms, their combined area will be equal to r2 + r2. We already know that a cylinder's curved surface area is 2rh.
(r2 + r2 + 2rh) is the cylinder's total surface area.
⇒ 2πr2 + 2πrh
Total surface area of cylinder = 2πr(r+h)
where,
r = radius of the cylinder
h = height of cylinder
To learn more about total surface area of cylinder from given link
brainly.com/question/27440983
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19/20 is less then 8/9. And I know how this fractions are labeled down in blocks