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​you scan the night sky looking for meteors or comets. They appear at unpredictable times. This is an example of which type of schedule of reinforcement?
answered
Jul 7, 2019
Social Studies
high-school
1
vote
76.2k
views
Please help posted picture of question
answered
Mar 27, 2019
Mathematics
college
7
votes
170k
views
The larger triangle is a dilation of the smaller triangle with a center of dilation at (2,???1) . What is the scale factor of the dilation? A. 1/3 B. 1/2 C. 2 D. 3
answered
Feb 28, 2019
Mathematics
high-school
2
votes
221k
views
The slant height, l, of a cone with a surface area of 500π ft2 and a radius of 15 ft. l = ft
answered
Dec 5, 2018
Mathematics
high-school
2
votes
137k
views
The sine of an angle in a right triangle is the ratio of the length of the side adjacent to that angle to the length of the hypotenuse
answered
Nov 23, 2018
Mathematics
high-school
7
votes
112k
views
Primary seismic waves are slow-moving and are examples of transverse waves. True False
answered
Oct 26, 2018
Chemistry
high-school
6
votes
104k
views
How does a logistic growth curve differ from an exponential growth curve?
answered
Aug 10, 2018
Biology
high-school
1
vote
95.6k
views
What are some of the elements that make up a story's voice, even if you arent sure how to explain excatly what it is
answered
Jun 27, 2018
English
middle-school
3
votes
212k
views
Given the area of a square is 225 square feet, what is the length of each side
answered
Apr 7, 2018
Mathematics
middle-school
3
votes
29.3k
views
Why did food prices drop after the black death swept through western Europe?
answered
Nov 20, 2017
Social Studies
middle-school
2
votes
164k
views
Which of these best describes how early coverage of the Vietnam War reflected networks' desire to attract viewers? Newscasts focused on the personal and the visual. Newscasts focused on facts and figures.
answered
Oct 29, 2017
History
high-school
6
votes
44.4k
views
Which of the following equations represents the greatest value of x? Equation 1 Equation 2 Equation 3 Equation 4 x2 = 35 x3 = 64 x3 = 125 x2 = 38 Equation 1 Equation 2 Equation 3 Equation 4
answered
Sep 23, 2017
Mathematics
middle-school
1
vote
60.9k
views
Explain why it is necessary to rename 4 1/4 if you subtract 3/4 from it?
answered
Sep 8, 2017
Mathematics
middle-school
6
votes
212k
views
What's the simplest form of 8/64
answered
Feb 7, 2016
English
middle-school
2
votes
23.9k
views
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