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1 bạn học sinh đi học từ nhà đến trường .Nửa đoạn đường đầu , bạn đi với vận tốc là 10km/h,nửa đoạn đường sau,bạn đi với vận tốc là 15km/h.Tính Vtb của bạn học sinh trên cả quãng đường?
asked
Apr 26, 2022
Mathematics
high-school
1
answer
0
votes
41.4k
views
In an electron microscope what type of cells are used?
asked
Apr 6, 2022
Biology
college
1
answer
15
votes
199k
views
Each Saturday, a store reduces the price of any unsold item by 10%. If an item was priced at $80, on Saturday of the first week it is marked down to $72. At the end of the second week, it drops to $64.
asked
Jan 2, 2022
Mathematics
high-school
1
answer
2
votes
174k
views
Find the area of the polygon A. 240 cm2 C. 250 cm2 B. 244 cm2 D. 244 cm2
asked
Dec 15, 2021
Mathematics
middle-school
2
answers
1
vote
144k
views
During 2017, Williamson Company changed from FIFO to weighted-average inventory pricing. Pretax income in 2016 and 2015 (Williamson’s first year of operations) under FIFO was $160,000 and $180,000, respectively.
asked
Jul 28, 2021
Business
high-school
1
answer
3
votes
27.7k
views
Upload your map below. Click here for a nrintable rubric. Keep in mind that this rubric
asked
Jul 19, 2021
History
college
2
answers
5
votes
172k
views
At the shorter waterfall, water falls uninterrupted for 1552 feet before entering the river below. The height h above the river in feet of water going over the edge of the waterfall is modeled by h\left(t\right)=-16t^2+1552h(t)=−16t^2+1552,
asked
Jul 9, 2021
Mathematics
high-school
1
answer
0
votes
207k
views
Which of the following observations best demonstrates waters special property of cohesion
asked
May 7, 2021
Biology
college
1
answer
3
votes
48.4k
views
For a living thing to function properly, its internal environment must maintain ____________ , or be kept relatively constant. This applies to individual cells as well as entire organisms.
asked
Apr 1, 2021
Biology
high-school
1
answer
3
votes
227k
views
The equation (x-1)^2 + (y+1)^2 = r^2 represents circle J. The point D (0,3) lies on the circle. What is r, the length of the radius of circle J?
asked
Mar 12, 2021
Mathematics
high-school
1
answer
5
votes
103k
views
100 nautical miles equals about 185 km to the nearest kilometer how far in kilometers is 140 nautical miles.
asked
Jan 15, 2021
Mathematics
middle-school
1
answer
2
votes
180k
views
When a 0.80 g sample of unknown Fe2+ salt is titrated with 0.0285 M K2Cr2O7. it is found that 59.2 mL of this dichromate solution are required to reach the equivalence endpoint b. calculate the percent
asked
Dec 17, 2020
Chemistry
high-school
1
answer
5
votes
107k
views
Plzzzzzzz Hallllpppppppppppppppppppp Select the correct scientific notation form of this numeral. 1,263 A. 12.63 × 10 2 B. 1.263 × 10 3 C. 12.63 × 10 3 D. 1.2 × 10 3
asked
Oct 28, 2020
Mathematics
high-school
2
answers
3
votes
101k
views
What is 8.79 as a mixed number?
asked
Apr 27, 2020
Mathematics
middle-school
2
answers
2
votes
139k
views
2. What caused the conflict between Russia and Austria-Hungary? a. Control over French Provinces b. Control over Morocco c. Control over Serbians d. They had no conflict
asked
Jan 5, 2020
History
middle-school
1
answer
2
votes
196k
views
****PLEASE HELP!!!!!!********* Which is these exposures will NOT lead to active, permanent immunity? Being infected by a disease Passing antibodies from mother to baby through breastmilk Receiving a vaccine
asked
Oct 5, 2019
Biology
high-school
1
answer
3
votes
226k
views
Sam says that all molecules are compounds. Jac disagrees and says that all compounds are molecules. Who is right and why? Question 2 options: Neither Jac nor Sam are correct because molecules and compounds
asked
Feb 13, 2019
Biology
high-school
1
answer
2
votes
142k
views
Give two examples of someone being a consumer. Explain why the role of a consumer is important to a economic system
asked
Sep 18, 2018
History
high-school
2
answers
5
votes
148k
views
what most accurately evaluates the effect of the Albany Plan of Union upon the new national government?
asked
May 28, 2018
History
high-school
2
answers
4
votes
79.4k
views
The density of an object is how much matter it contains. a. True b. False
asked
Feb 11, 2018
Physics
high-school
1
answer
5
votes
23.1k
views
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