D is the answer
(4+8)+1 = 13
4+(8+1) = 13
Therefore equation D is true
Answer:
The MAD of {12, 10, 10, 8, 6, 7, 7, 12} is 2.
Step-by-step explanation:
<u><em>Step 1 : Add all the values Up:</em></u>
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<u><em>Step 2 : Divide them by the number of items or numbers:</em></u>
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<u><em>Step 3: Find the absolute deviations:</em></u>
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<u><em>Step 4: Add all the absolute deviations:</em></u>
<u><em>Step 5: Find the mean:</em></u>
Answer: (4x+12) - (2x-5)
Step-by-step explanation: The (4x+12) is positive and the (2x-5) is negative.
We can use ratios, in other words, if one part of the photo is changed x times, how many times does the other part change?
We can set up the proportion as :
width 1 : length 1 = width 2 : length 2
20 : 30 = 5 : x
We do inverse multiplication, or multiply the outer with outer and inner with inner (W1 * L2 and L1 * W2)
20*x = 30*5
20x = 150
Divide all by 10
2x = 15
Divide all by 2 to isolate x
x = 15/2
x = 7.5cm
So y^2 times 9^5 or
y*y means y times y so
y*y*9*9*9*9*9 or 59049y^2
