Answer:
answers C and D are both correct. (I consider D to be "simpler.")
Step-by-step explanation:
By the rules of exponents ...
(a^b)^c = a^(b·c)
Here, we have a=-3, b=2. c=3, so ...
((-3)^2)^3 = (-3)^(2·3) = (-3)^6
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Consider further that ...
-3 = (-1)(3)
and another rule of exponents tells you ...
(a·b)^c = (a^c)·(b^c)
so our previous simplified result can also be written as ...
(-3)^6 = ((-1)·(3))^6 = (-1)^6·(3)^6 = 1·(3)^6 = (3)^6
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I find it hard to tell just how "simplified" your answer key may want the answer to be. Of course, the simplest possible form is 729.
1 pencil and 4 pens = 5 total
Picking the pencil would be 1/5 ( 1 pencil out of 5 total items)
5 color pencils + 5 crayons = 10 total items.
Picking a color pencil would be 5/10 which reduces to 1/2
To find the probability of both happening, multiply them together:
1/5 x 1/2 = 1/10
The probability is 1/10
Answer:
x=ln(12)/ln(4)-2
Step-by-step explanation:
4^(x+2)=12
x+2=ln(12)/ln(4)
x=ln(12)/ln(4)-2
The area of the fence is 6*25=150 square feet.
It will take him 150 / 2 = 75 of 10-minute intervals. 75 min *10 = 750 min = 750/60 hours = 12.5 hours.
