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Which refers to the ratio of output work to input work of a machine expressed as a percent? total work wattage efficiency power
answered
Jul 29, 2021
Physics
high-school
4
votes
92.1k
views
Otis sent John a car. Choose the correct option from the analysis below---------------------------------------- (A) Otis----subject, sent----verb, John----direct object, a car----indirect object. (B) Otis----noun,
answered
Jul 25, 2021
English
high-school
3
votes
199k
views
A construction worker tosses a brick from a tall building. The brick's height (in meters above the ground) t tt seconds after being thrown is modeled by h ( t ) = − 5 t 2 + 20 t + 105 h(t)=−5t 2 +20t+105h,
answered
Feb 13, 2021
Mathematics
high-school
1
vote
139k
views
· Forced to flee Italy after a failed uprising · Contributed to the independence of Uruguay · Later elected to the Italian Parliament All of these are describing what Italian political figure? A) Count
answered
Jan 16, 2021
History
middle-school
1
vote
149k
views
The mean is defined as the A. average of a data set B. range of the data set C. number that shows up most often in a data set D. middle of the data set
answered
Nov 12, 2020
Mathematics
middle-school
1
vote
99.4k
views
Do you think elections promote democracy? Justify your answer with three arguments
answered
Sep 4, 2020
Social Studies
middle-school
4
votes
220k
views
Mario's weight increased by 18 pounds over 3 years. If the Increase was the same each year, how much weight did Mario gain each year?
answered
Aug 13, 2020
Mathematics
middle-school
5
votes
114k
views
Help please asap! Most of Latin America is located to the south of the ___________.
answered
Jan 19, 2020
Geography
high-school
4
votes
48.4k
views
(5+3) + 2×4 + (2+6) ÷8 HELP!!! AND PLZ EXPLAIN YOUR ANSWER
answered
Dec 29, 2019
Mathematics
high-school
6
votes
50.4k
views
Please I need help with that
answered
Sep 15, 2019
Mathematics
middle-school
5
votes
208k
views
Entrepreneurs are A. people who take risks in the hope of earning profit B. salespeople who rotate the companies they work for C. government officials who give advice to businesses D. business owners who
answered
Sep 15, 2019
History
middle-school
3
votes
1.4k
views
What is the value of this expression 3(6/8-1/2)+0.25
answered
Jul 8, 2019
Mathematics
high-school
4
votes
76.8k
views
Select all that apply. To decide if 12.5 centimeters is greater than 140 millimeters, the first step is to set up a proportion Which of the following proportions are correct? A. 12.5 cm/1 cm = 140mm/x
answered
Feb 15, 2019
Mathematics
middle-school
5
votes
186k
views
A true-false test contains 13 questions. In how many different ways can the 13-question test be answered?
answered
Jun 19, 2018
Mathematics
college
3
votes
52.3k
views
(you can zoom in) Can someone please explain why this is wrong?? ( Pythagorean theorem )
answered
Jun 17, 2018
Mathematics
high-school
3
votes
113k
views
Tiffany bought 2/5 kg of cherries.. Linda bought 1/10 kg less than Tiffany.. how many kilograms of cherries did they bought all together?
answered
May 24, 2018
Mathematics
middle-school
1
vote
50.7k
views
Which solution is a homogeneous mixture? sand and water salt and water salad dressing soil
answered
Jan 12, 2018
Chemistry
high-school
3
votes
156k
views
What is "K" in math
answered
Dec 5, 2017
Mathematics
middle-school
4
votes
162k
views
Select the term that best describes the statement. A triangle is acute provided all the angles have a measure of less than 90 degrees. a) conjunction b) disjunction c) negation d) conditional
answered
Oct 17, 2017
Mathematics
high-school
6
votes
96.8k
views
What is the main difference between implied powers and expressed powers? a. implied powers are written in the Constitution and express powers are agreed upon b. implied powers are generally agreed upon
answered
Sep 3, 2017
Social Studies
high-school
5
votes
132k
views
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