Mathematics, 30.07.2019 19:30 blaze9889t
If the area of an equilateral triangle is 9√3 sq ft, how long is a side? 6 ft. 9 ft. 18 ft.
Answers: 1
![Area= \frac{ \sqrt{3} }{4}s^2 \ \ \ \ \ \text{[s= length of a side] } \\ \\ \\ \frac{ \sqrt{3} }{4}s^2=9 \sqrt{3} \\ \\ s^2=9 \sqrt{3}: \frac{ \sqrt{3} }{4}= 9 \sqrt{3} \cdot \frac{ 4 }{ \sqrt{3} }=36 \\ \\ s= \sqrt{36}=6 \ \text{ft }](/tpl/images/0151/6506/8c172.png)
Another question on Mathematics
Mathematics, 21.06.2019 20:30
What is the length of the segment, endpoints of which are intersections of parabolas y=x2? 11 4 x? 7 4 and y=? 7 8 x2+x+ 31 8 ?
Answers: 2
Mathematics, 21.06.2019 21:10
The equation |pl = 2 represents the total number of points that can be earned or lost during one turn of a game. which best describes how many points can be earned or lost during one turn? o o -2 2 oor 2 -2 or 2 o
Answers: 1
Mathematics, 22.06.2019 02:30
What is the equation of the parabola with focus (-1,-1) and directrix y=1?
Answers: 1
You know the right answer?
If the area of an equilateral triangle is 9√3 sq ft, how long is a side? 6 ft. 9 ft. 18 ft....
Questions
Mathematics, 05.07.2019 16:30
Mathematics, 05.07.2019 16:30
World Languages, 05.07.2019 16:30
Mathematics, 05.07.2019 16:30
English, 05.07.2019 16:30
Mathematics, 05.07.2019 16:30
Biology, 05.07.2019 16:30
Biology, 05.07.2019 16:30
Mathematics, 05.07.2019 16:30
Mathematics, 05.07.2019 16:30
Chemistry, 05.07.2019 16:30
Social Studies, 05.07.2019 16:30
