Recent activity by Rafat Touqir Rafsun

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(Tor F) Vasco Nunez de Balboa went down the mountain with his brother.

answered Dec 20, 2024

1 answer 64.8k views

The range of a quadratic function is [-2, ∞0) and the axis of symmetry is a = 2. Use the best match below. Vertex Open up Decreasing on Increasing on Relative maximum Domain Number of x-intercepts Choose.

asked Dec 17, 2024

1 answer 204k views

Dave throws sweets upwards at a speed of 8 ms-1 from a first-floor window to his sister Carol who is standing at a second-floor window 3m directly above Dave. Carol misses catching the sweet as it passes

answered Dec 4, 2024

1 answer 18.2k views

Generate a row vector a=[1 2 3 4 5 6 7 8 9 10] using the colon expression. Provide the commands and show a print-screen of the result. a) a=1:10 b) a=[1,10] c) a=linspace(1,10,10) d) a=[1:1:10]

answered Nov 20, 2024

1 answer 147k views

Water is the working fluid in an ideal Rankine cycle. Saturated vapor enters the turbine at 12 MPa, and the condenser pressure is 8 kPa. The mass flow rate of steam entering the turbine is 50 kg/s. Determine

asked Nov 10, 2024

1 answer 72.7k views

An excess of solid CaF₂ is shaken with a 0.100 M KF solution until the solution is saturated with calcium fluoride. (Use Ksp = 3.2 x 10⁻¹¹ for CaF₂.) Calculate the molar concentration of Ca₂⁺ in the saturated

answered Nov 8, 2024

1 answer 82.7k views

15-28i=3l+(4m)i (find the values of l and m)

answered Oct 11, 2024

2 answers 159k views

Which of the following phases of a CISD program is NOT an appropriate phase? A. Discuss the emotions the participants are feeling. B. Learn ways to overcome stress. C. Determine how to place blame for

asked Oct 2, 2024

1 answer 231k views

This following video sample of the musical "Mama Mia" is an example of a Jukebox Musical. a) True b) False

answered Jul 23, 2024

1 answer 9.7k views

What is an example of how the executive branch keeps the legislative branch in check

asked Jul 6, 2024

1 answer 108k views

Dom and Serano work in the accounting department at Maxwell's Sporting Goods' corporate headquarters. Recently, the department switched to a different software system for keeping financial records. Their

asked May 13, 2024

1 answer 234k views

Which types of crops almost always are exported, and are rarely consumed by the nation that produces them? A. cash crops B. subsistence crops C. luxury crops D. high-volume crops

asked Jan 7, 2024

1 answer 25.3k views

What is the best way to rewrite this sentence? A. The cashier, thoughtlessly presented the man, with a worn ripped dollar bill. B. The cashier thoughtlessly presented the man with a worn, ripped, dollar,

asked Oct 8, 2023

2 answers 47.7k views

Ethanol, C,H,O, is added to gasoline to produce "gasohol,"a fuel for automobile engines. How many grams of O₂ arerequired for complete combustion of 421 g of ethanol?2CO₂(g) + 3H₂O(g)C₂H₂OH()+ 30₂(g)Ethanol

asked Aug 27, 2023

1 answer 77.3k views

The article says: Most of these young people are ages 16 and up. They work at polling sites. That's where voters cast their ballots during elections. Poll workers check in voters. They show them how to

answered Aug 6, 2023

2 answers 154k views

Rounding number to the nearest hundredth

answered Jun 24, 2023

2 answers 200k views

Inventions such as the Internet, the railway, the telephone, among many others, have helped humans make huge advancements. These inventions help with the quick dispatch of information and make travel and

answered Jun 15, 2023

1 answer 174k views

A 40-inch board is to be cut into three pieces so that the second piece is twice as long as the first piece, and the third piece is 5 times as long as the first piece. If x represents the length of the

asked Jun 10, 2023

2 answers 235k views

A rectangular paperboard measuring 29 in long and 21 in wide has a semicircle cut out of it, as shown below. What is the perimeter of the paperboard thatremains after the semicircle is removed? (Use the

asked May 28, 2023

1 answer 14.9k views

How was slavery that existed in Africa different from the transatlantic slave trade? A. there was not a very high demand for slaves in african nations B. slave rebellions were more common among enslaves

answered May 23, 2023

1 answer 83.1k views

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