Answer:
I think 7=2, 6=-2, 4=23, 8=-7, 3=9, 1=12, 2=0, 5=7, 10=8, 11=3, 12=-45, 9=25
Step-by-step explanation:
I tried my best
Answer:
(a) and
(b) The sample variance is and the sample standard deviation is
Step-by-step explanation:
(a)
The sum of these 17 sample observations is
and the sum of their squares is
(b)
The sample variance, denoted by , is given by
where
Applying the above formula we get that
The sample standard deviation, denoted by <em>s</em>, is the (positive) square root of the variance:
Applying the above formula we get that
STEP-BY-STEP SOLUTION:
= a^3 - 4a^2 + 12 - 3a
= a^2 ( a - 4 ) + 3 ( 4 - a )
= a^2 ( a - 4 ) - 3 ( a - 4 )
= ( a - 4 ) ( a^2 - 3 )
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The answer is 18
Step by step Explanation:
Due to the fact that they provided to you that the triangle is 45-45-90 triangle you know that the legs other than the hypotenuse are x and that the hypotenuse is labeled as x root 2.
3 times root 2 equals 3 root 2
Square formula: l*w
3 root 2 times 3 root 2 equals 18 because when there is a perfect square in the radical we take it out and multiply it to the coefficient. For example if 121 is inside the radical we take out 11 because 11 * 11 = 121. In this case 2 * 2 = 4 so we take the 2 and multiply it to 9 and we get 18.