Using the arithmetic formula an = a1 + d(n - 1) to identify the sequence.
an = 5n - 13
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12 + 42 is 54. If you take the numbers apart and add them into tens. 42 because 4 10s and your left with 2 ones. If you take 12 and seperate it into tens you get 1 ten with a remainder of 2. 10 + 10 + 10 + 10 + 10 = 50. 2+2 is 4. Remember that they are the same number so 50 + 4 is 54.
Answer:
1/2
Step-by-step explanation:
16^-1/4
We know that a^ -b = 1/a^b
1/( 16^1/4)
Rewriting 16 as 2^4
1/( 2^4^1/4)
We know that a^b^c = a^ (b*c)
1/( 2^(4*4))
1/2^1
1/2
Ratio of perimeter (linear measure) is the same as the scale factor (5:6).
Ratio of area (unit squared) is the square of the ratio, namely 5^2:6^2=25:36
Ratio of volume (unit cubed) is the cube of the ratio, namely 5^3:6^3=125:216
