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Which isotope is used to date ancient remains? es A) carbon-14 B) hydrogen-3 lead-205 D) uranium-238
answered
Aug 19, 2021
Biology
high-school
0
votes
160k
views
An insurance company divides its policyholders into low-risk and high-risk classes. 60% were in the low-risk class and 40% in the high-risk class. Of those in the low-risk class, 80% had no claims, 15%
answered
Jul 31, 2021
Mathematics
college
6
votes
94.3k
views
Taly and Niger have opposite population demographics: Italy has an aging population with a high life expectancy, and Niger has a very young population with a low life expectancy. Please select the best
answered
May 18, 2021
Geography
high-school
0
votes
150k
views
The price of a car has been reduced from $21,500 to $13,115. What is the percentage decrease of the price of the car? A. 83.85% B. 3.9% C. 61% D. 39%
answered
May 17, 2021
Mathematics
middle-school
4
votes
49.5k
views
Are starfish on the beach dead or alive? which details in the poem provide the answer?
answered
Jan 29, 2021
English
middle-school
5
votes
167k
views
how many grams of iron will be required to release all the antimony from 10 grams of antimony trisulfide? iron 2 sulfide is also formed
answered
Aug 25, 2020
Chemistry
middle-school
5
votes
132k
views
Due to the complexity and severe consequences of mistakes, pilots are required to undergo training in an artificial setting that closely mimics actual flying conditions. This type of training is called
answered
Jun 8, 2020
Social Studies
high-school
2
votes
197k
views
iven the following chemical equations:I. C+ 2H_2 2 → CH_4 4 (0.22 moles of H_2 2 )II. 6CO_2 2 + 6H_2 2 O → C_6 6 H_{12} 12 O_6 6 (2.25 g of CO_2 2 )III. CH_4 4 + 2O_2 2 → CO_2 2 + 2H_2 2 O
answered
Jun 1, 2020
Chemistry
high-school
7
votes
36.2k
views
Which of the following is a factor of 8x3 + 1331? 2x − 11 4x2 + 22x + 121 4x2 − 44x + 121 None of the above
answered
Nov 27, 2019
Advanced Placement (AP)
middle-school
4
votes
41.3k
views
When a cell forms an amino acid by adding an amine group derived from ammonia to a precursor metabolite, this process is called?
answered
Aug 31, 2019
Biology
high-school
5
votes
153k
views
Escoge la mejor respuesta. Select the best answer. Sandra Cisneros escribió The House on Mango Street y ________. (1 point) Paula Love in the Time of Cholera Caramelo In the Time of the Butterflies
answered
Jun 6, 2019
Spanish
middle-school
0
votes
172k
views
Temperature measures A) Potential and Kinetic Energy B) Total Energy C) Average Kinetic Energy
answered
Apr 30, 2019
Biology
middle-school
3
votes
180k
views
The differential equation dy/dx=x I.will produce a family of quadratic functions. II.will produce a family of linear functions. III.will produce a family of exponential functions. ANSWER OPTIONS I only
answered
Aug 15, 2018
Mathematics
high-school
4
votes
7.6k
views
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