maddyr04
09.01.2020 •
Mathematics
Ordinary quarters and a fake quarter with two heads are placed in a hat. one-quarter is selected at random and tossed twice. if the outcome is "hh," what is the probability that an
ordinary quarter was selected?
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Ответ:
the correct one is 1. 16x - 12(1 + 2x) + 4
Step-by-step explanation:
16x−12−24x+4 is equivalent to 8x-8
1. 16x - 12(1 + 2x) + 4 is equivalent to 8x-8
2. 40x-16 is equivalent to 8(5x−2)
3. 4 - 12 + (2x - 3x) is equivalent to −x−8
4. -8(x+1) is equivalent to −8x−8