Answers by Pier Betos
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Answers by Pier Betos

Answers by Pier Betos
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(1 point) The lifetime of a certain type of TV tube has a normal distribution with a mean of 57 and a standard deviation of 6months. What proportion of the tubes lasts between 58 and 60 months?
answered Sep 20, 2023
7 votes
9.1k views
Lee las conversaciones y completa las oraciones con las formas correctas de la construcción ir + a.
answered Sep 8, 2023
2 votes
131k views
Bill is motivated to work hard in school because his parents promised him a car if he graduates in the top ten percent of his class. It could be said that he is being motivated by __________. A. Rewards
answered Jun 28, 2023
9 votes
207k views
Write the quadratic equation in standard form: 5x^2+7+3x=-3x
answered Jun 27, 2023
6 votes
63.4k views
1/2x - 7 = 1/3(x - 12)
answered Oct 13, 2022
14 votes
52.2k views
What did the supreme court rule in Plessy v. Ferguson in 1896
answered Jul 30, 2022
6 votes
97.9k views
Please help with these 5 math questions for 25 points!
answered May 27, 2022
0 votes
13.8k views
What is the GCF of 33 and 99?
answered Apr 30, 2022
11 votes
74.0k views
Please help. no links. need answers for all questions :))
answered Apr 30, 2022
3 votes
107k views
What was one major outcome of the Japanese military leadership's policies during the 1930s?
answered Apr 20, 2022
3 votes
154k views
How many millions are needed for a trillion.
answered Apr 17, 2022
5 votes
127k views
As a concerned citizen of Triston and a member of the North Carolina Conservation of Nature Council, I am asking for the community's help with a serious issue. First, I want to congratulate our town's
answered Oct 11, 2021
0 votes
14.6k views
HELP! Suppose you make hot chocolate. It's too hot to drink, so you put it in the freezer to cool it off. If the original temperature is 190 degrees Fahrenheit and the freezer is 0 degrees Fahrenheit,
answered Sep 11, 2021
5 votes
63.6k views
Use the reaction: 2 C4H10 (g) + 13 O2 (g) → 8 CO2 (g) + 10 H2O (g) + 5720 kJ. In the reaction, 200.0g of hydrocarbon react with excess oxygen gas. How much energy is released?
answered Aug 9, 2021
2 votes
142k views
What change caused the extinction of life on Earth? A. Solar radiation split molecules B. A meteor strike C. The formation of oceans D. The development of an ozone layer
answered Jun 15, 2021
6 votes
180k views
Which nations made up the core of the Allied Powers? A. India, South Africa, Egypt, New Zealand B. The United Kingdom, France, The United States, USSR C. Canada, Spain, Portugal, Romania D. Germany, Italy,
answered Mar 11, 2021
3 votes
122k views
Finding area and perimeter A square with sides of length 21m.
answered Jan 7, 2021
5 votes
116k views
You invest $3,459 in a savings account that pays 7.2% annual interest. After 3 years, how much interest will you have earned?
answered Jan 2, 2021
2 votes
164k views
Which regions primary economic activity in 1861 was the cultivation of cotton
answered Dec 30, 2020
4 votes
227k views
Show that a triangle with vertices at (3,5), (3, 2), and (2,5) is a right triangle.
answered Dec 12, 2020
3 votes
36.3k views
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