Answer:
C) If the perfect square terms are A^2 and B^2 and other terms must be 2 AB and -2AB
Step-by-step explanation:
As,

Answer: (B) 3 times as fast
<u>Step-by-step explanation:</u>
rate of change is the "slope" between the given interval.
f(x) = 125(.9)ˣ
f(1) = 125(.9)¹
= 112.5
f(5) = 125(.9)⁵
= 73.8

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f(11) = 125(.9)¹¹
= 39.2
f(15) = 125(.9)¹⁵
= 25.7

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The rate of change from years 1 to 5 is approximately 3 times the rate of change from years 11 to 15.
(20+40)+4
So basically the easiest way to remember is for example:
Normal: 69+45
Distributive property: (60+40)+9+5
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So if you have 24 you need to distribute the numbers to make them into tens. That’s how you get 4.
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I didn’t explain it very well but hope it helped a little bit.
Answer:
The mean would be 85 :)
Step-by-step explanation:
Answer:
b = 2x²
Step-by-step explanation:
Let the number of bacteria = x
Every hour, the number of bacteria doubles itself, = x * x = x²
But the bacteria started with 2g,
The number of bacteria present is equal to
2 * x² = 2x².
At every hour, the growth of the bacteria is at 2x²