Lila did it correctly. The answer is 324
Following PEMDAS, we first focus on the parenthesis. So we simplify 9-3 to get 6
So we go from
18*4^2+(9-3)^2
to
18*4^2+6^2
The next step is applying exponents. In this case, squaring the terms, so we go from
18*4^2+6^2
to
18*16+36
Next is multiplying
18*16+36
turns into
288+36
Finally, add up 288 and 36 to get 288+36 = 324
That confirms that Lila is correct
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The error that Rob made is that he computed 18*4^2+9^2-3^2 but it is NOT correct. Saying (x-y)^2 = x^2-y^2 isn't a true equation for all x and y. Again you have to simplify what is in the parenthesis first, and then you can square it. Or you must use the FOIL rule to expand out (9-3)^2
Answer:
$92
Step-by-step explanation:
Since Sally plans to keep the kayak for 6 hours and it's $7 per hour we can multiply 6*7 to determine how much she will be charged for keeping the kayak.
6*7=$42
Now we add this to the original deposit of $50.
$50+$42=$92
Answer:
Step-by-step explanation:
Base for the exponent and for the logarithm are the same!
10^0 is the <u>exponential</u> form where 10 is the base and 0 the exponent
is the l<u>ogarithm</u> form where 10 is the base
To solve 
ask the question :
To what power should I raise the base 10 to obtain the number 1 ?
The answer to the power 0 therefore
to the power of..
Step-by-step explanation:
2x X 2x X 2x= 8x
A pattern formed by a flattening crop
