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True or False: Solar energy is changed into electrical energy in a solar power tower system using mirrors called heliostats that concentrate sunlight onto a central tower. True False
asked
Feb 17, 2021
Chemistry
middle-school
2
answers
3
votes
28.1k
views
4. Look at the picture. The dolphin uses sound to find food in the water. Which sense helps people and dolphins use sound?
asked
Jan 19, 2021
Mathematics
middle-school
1
answer
5
votes
146k
views
Find the length of BC if ABC is equilateral with AB=12x+4 and AC=8x+12
asked
Nov 3, 2020
Mathematics
middle-school
1
answer
4
votes
6.3k
views
Some European sailors sailed west looking for the ____passage to india? a.Southwest b.northwest c.west
asked
Apr 22, 2020
History
middle-school
2
answers
4
votes
50.5k
views
What is one way Southern Democrats denied African American voting rights? A. poll taxes B. Constitutional Amendments C. bribery D. negative campaigning
asked
Jan 24, 2020
History
middle-school
1
answer
1
vote
233k
views
The marshall plan could be understood as part of an american desire to
asked
Dec 24, 2019
History
high-school
1
answer
0
votes
220k
views
Write the equation x 2 + y 2 = 16 in general form.
asked
Aug 8, 2019
Mathematics
middle-school
1
answer
4
votes
183k
views
32 of 96 parents in the pta wanted a bake sale instead of a car wash. what is the greatest common factor you can use to simplify this fraction?
asked
May 25, 2019
Mathematics
middle-school
1
answer
2
votes
176k
views
A student performed a scientific investigation using four small balls of the same size and shape and a ramp. Each ball was taken to the top of the ramp and released. After several trials, three of the
asked
Jun 7, 2018
Biology
middle-school
1
answer
1
vote
164k
views
a square plot garden plot has an area of 24ft^2 find the length of each side in simplest radical form
asked
May 21, 2018
Mathematics
high-school
1
answer
4
votes
118k
views
Bacteria reproduce by binary fission, in which each cell divides into two daughter cells that are similar in size and shape. Which type of reproduction occurs in this case?
asked
Jan 7, 2018
Biology
middle-school
2
answers
3
votes
173k
views
Select one of the factors of x^2y^3 - 11x^2y + 6y^2 - 66. A.) (x^2y + 6) B.) (x^2y - 6) C.) (y^2 + 11) D.) (y - 3)
asked
Feb 5, 2017
Mathematics
high-school
2
answers
1
vote
212k
views
The Supreme Court’s jurisdiction includes
asked
Apr 27, 2016
History
high-school
1
answer
1
vote
87.7k
views
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