Multiply and combine similar variables, using the rules of exponents. So your answer is A to the power of 9.
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Answer:
64 degrees
Step-by-step explanation
multiply 4 by 16 because for every hour it was cooled another 4 degrees so 4 times 16 equals 64
Answer:
Since the question is why 1953125 is not a square number, you don’t need a test for perfect squares, you only need something that shows this particular number is not a perfect square.
One starting test for showing a number will NOT be a perfect square is to use “casting out 9’s”. Remove any digits that are 9 or that add up to 9.
Thus: 1953125 becomes 153125 (removing 9) which then becomes 125 since 1+5+3=9. [OR: 53, since 1+1+2+5 = 9] [OR: 35]
(Note that you can repeat the whole process until you have cast out all 9s.)
Examine the number that is left. If it is not a perfect square, then the original number cannot be a perfect square.
125 is not a perfect square [nor is 53 or 35], so 1953125 cannot be a perfect square.
Let's define x -> Darlene's weight
and
y -> Leah's dog Weight
Equation 1x5y
Equation 2: xty 84
Since x is equal to 5y in Equation 1, you can replace x in the Equation 2 by 5y. So, Equatoin 2 can be written as
5y + y = 8
6y = 84
y = 14
So, you find y is equal to 14 (Leah's dog weight). Then, x is equal to 5y, 5 * 14 70. So, x is equal to 70 (Darlene's dog weight.
HOPE THIS HELPS !
