Answer:
To figure out the variance, divide the sum, 82.5, by N-1, which is the sample size (in this case 10) minus 1. The result is a variance of 82.5/9 = 9.17. Standard deviation is the square root of the variance so that the standard deviation would be about 3.03.
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Answer:
(6,12)
Step-by-step explanation:
Use the mid point formula to find the answer. Add the first x value to the second and divide by two for your x midpoint, then add the first y value to the second y value and divide by two for your y midpoint.
Answer:
64,81,100
Step-by-step explanation:
Answer: 64,81 and 100
Step-by-step explanation: 8^2=64, 9^2=81 and 10^2=100
Answer:
y = 2 - 1
Step-by-step explanation:
y = 2 - 12x + 16
y = 2( - 6x + 8) ( Factor out 2 )
y + 9= 2( - 6x + 9) + 8 ( Complete the square ) Add 9 both sides
y + 9 = 2 + 8 (Subtract 9 each side)
y = 2 - 1 ( simplify )
The rate of change of y is proportional to y. when x=0, y=4 and when x=3, y=10 then the value of y is 12 when x =6.
The two points from the given information are (0, 4) and (3, 10).
Let us find the
=6/3
=2
Now let us find the y intercept to write the equation in slope intercept form.
Consider the point (0, 4) to find y intercept.
Plug in the point values in slope intercept form:
4=2(0)+b
Solve for b:
b=4
The equation in slope intercept form is y=2x+4.
Now let us find the value of y when x=6.
Plug in x as 6 in the equation y=2x+4.
y=2(6)+4
y=12+4
y=16
Hence, the value of y is 16 when x is 6.
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We know x+y=0; so, if x=6 y= -6
The 291 smallest tile or 177 largest tile.
Area is the amount of space occupied by a two-dimensional figure. In other words, it is the quantity that measures the number of unit squares that cover the surface of a closed figure. The standard unit of area is square units which is generally represented as square inches, square feet, etc.
The area of a shape is calculated with the help of its length and width. Length is unidimensional and measured in units such as feet (ft), yards (yd), inches (in), etc. However
Given:
Area of floor = 320 feet²
Area of smallest tile= 1.1 square feet
Area of smallest tile = 1.815 square feet.
Number of smallest tile = 320/1.1 ≈ 291 tiles
Number of large tiles = 320/1.815 ≈ 177 tiles
Hence, the 291 smallest tile or 177 largest tile.
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