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Answers by Penelope

Answers by Penelope
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Dave continues flipping his coin until he has 100 total flips, and the coin shows heads on 47 of those flips. Based on these results, what is the experimental probability of the coin landing on heads?
answered Apr 1, 2021
4 votes
14.9k views
What did the European Explorers call North America once they landed there in the 1400s?
answered Feb 23, 2021
4 votes
22.5k views
Which expression is equivalent to 2^-3
answered Feb 23, 2021
5 votes
76.7k views
One section of a pipe carrying water has a cross-sectional area of 20 cm2; in this section the water has flow velocity of 1.0 m/s. Another section of this pipe has a constricted cross-sectional area of
answered Dec 27, 2020
6 votes
159k views
Solve the equation by factoring 81m^3-81m^2-36m+36=0 ​
answered Nov 7, 2020
5 votes
66.4k views
Find all of the zeros of f(x) = 5x^2 +40x-100 (Multiple choice is up above) if it’s right I promise to mark brainles!
answered Jul 10, 2020
3 votes
157k views
Can having depression kill u
answered May 29, 2020
3 votes
220k views
Which value is most likely to be the pH of salt that is formed by the reaction of a week acid and a strong base ?
answered May 14, 2020
2 votes
113k views
A sample of O2(g) is placed in an otherwise empty, rigid container at 4224 K at an initial pressure of 4.97 atm, where it decomposes to O(g) by the reaction below. O2(g) ⇄ 2 O(g) At equilibrium, the partial
answered Mar 14, 2020
4 votes
165k views
Quick 14 min left! Anyone know the answer?
answered Nov 27, 2019
1 vote
30.1k views
Uri shared 6/8 of his orange with a friend. uri ste the rest so how much of the orsnge did he eat
answered Jul 24, 2019
3 votes
105k views
Choose the answer that best matches the word in italics the visitor unfurled the quilt she had brought with her and began to talk about its history a. pointed at b. pulled on c. unboxed d. opened up
answered May 14, 2019
5 votes
37.9k views
Find the slope of the line that passes through the points 2,1 and -1,-1
answered Mar 24, 2019
7 votes
147k views
What organization did DuBois help form?
answered Feb 8, 2019
3 votes
1.1k views
Describe some of the problems faced by benthic organisms in the ocean
answered Jan 8, 2019
6 votes
96.9k views
How do I rewrite the quadratic function in intercept
answered Oct 25, 2018
5 votes
133k views
Write out the molecular formula and Lewis structure for cyanide
answered Mar 4, 2018
3 votes
56.7k views
I'm confused on this help ??
answered Jan 29, 2018
4 votes
76.6k views
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