Difference of 2 perfec squares is
(a^2)-(b^2)
if the exponents are both even and the coeficient (the number in front) are perfect squares, then it is difference t 2 perfect squares
first one
8 is not perfect square
2nd one
(4e^4)^2-(9g^2)^2
third
25 is odd, so it cannot be split up into 2 nice numbers
4th
(11m^9)^2-(3n^5)^2
First, we know that their are 419 students....and that each needs 4 ribbons.
419*4 = 1676
Now, we also need to add the 48 ribbons for the parents.
1676 + 48 = 1724
Now, in total, Mr. wolf needs 1,724 ribbons.
Yes, it specifies the population
Answer:
A) True
Step-by-step explanation:
In an experiment that has the purpose of testing the efficacy of a procedure or drug, comparison is made against the efficacy of a placebo, a procedure or drug that is <em>intended to have no effect whatever</em>.
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Famously, a placebo is often found to be nearly as effective (or even more effective) than the procedure or drug on trial. This effect is known as "the placebo effect."
16.25 penalties.
35% of 25 is 8.75.
25-8.75=16.25
