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5r^2 - 44r + 120 = -30 + 11r solve the quadratic equations by factoring
answered
Jul 27, 2018
Mathematics
middle-school
3
votes
164k
views
Which of the following points lies on the circle whose center is at the origin and whose radius is 2 sqrt 3? (0,6) (2, sqrt 3) (2, 2 sqrt 2) (sqrt 3, sqrt 3)
answered
Jul 13, 2018
Mathematics
high-school
4
votes
134k
views
(a) Use the reduction formula to show that integral from 0 to pi/2 of sin(x)^ndx is (n-1)/n * integral from 0 to pi/2 of sin(x)^(n-2)dx where n>=2 is an integer. (b)Use part (a) to evaluate integral from
answered
Oct 21, 2017
Mathematics
high-school
2
votes
189k
views
Maria and Miquel were enjoying the fireworks when they got into a chemistry argument. Maria insisted that the fireworks were the result of a chemical reaction. Miguel disagreed. What would you tell them
answered
Aug 13, 2017
Physics
middle-school
7
votes
174k
views
About how many feet does a team of athletes run in 1600 m relay race
answered
Feb 27, 2016
Mathematics
middle-school
3
votes
192k
views
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