# Questions Asked onJuly 26, 2018

1. ## Science

A study demonstrates that treatment of peptic ulcers with antibiotics results in improvement in a large number of patients. This implies that A. antibiotics neutralize stomach acid. B. these ulcers are caused by a bacterial infection. C. pressure ulcers

2. ## Math

Find the centroid of the area in the first quadrant bounded by the curve y=e^-x and the axes and the ordinate x=ln5

3. ## science

Independant variable: Temperature of the room (three temperatures) Dependant variable: Length of the candle after it has burned for 30 minutes Constants (control variables): Type and length of candle, diameter of candle, and time that the candle is allowed

4. ## Physics

A 28 g block sits at the center of a turntable that rotates at 60 rpm. A compressed spring shoots the block radially outward from the center along a frictionless groove in the surface of the turntable. Calculate the turntable's angular speed when the block

5. ## Maths literacy, Life sciences, agriculture & busin

What courses & career can I do with these subjects?

6. ## Math

Mr. Brown owned a house which he rented for \$60 a month. The house was assessed at \$9000. In 1975 the rate of taxation was increased from \$25 to \$28 per \$1000 assessed valuation. By what amount should the monthly rent have been raised to absorb the

7. ## Math

A water tank can hold 56 5/7 litres of water. How much water is contained when it is 2/5 full?

8. ## chemistry

What volume of 0.1M Of sulphuric acid is needed to neutralize 100cm³ of a solution of sodium carbonate of mass concentration 20gram over dm³

9. ## science

What volume of 0.1M Of sulphuric acid is needed to neutralize 100cm³ of a solution of sodium carbonate of mass concentration 20gram over dm³

10. ## Arithmetic series

Suppose you are given the arithmetic sequence 3,6,9,...,99.What is the sum of the terms of this sequence?

11. ## Scince

the density of gold bar is 19.0 g cm⁻³ when a hole of volume 1.0 cm³ is drilled into the bar , density of the gold bar will be

12. ## Math

A body of mass 3kg moving at 15m/s collides with another body of mass 5kg moving at 26 m/s in the same direction. After collision the 5kg body moves at 39.8m/s in the same direction. Find the velocity of the 3kg body after collision

13. ## math

-2x(x+3)-(x+1)(x-2)=

14. ## Math

mike can complete a project in 60 minutes, and if mike and walter both work on the project, they can complete it in 40 minutes. how long will it take walter to complete the project by himself?

15. ## Math

This week Bob puts gas in his truck when the tank was about half empty. Five days later, Bob puts gas again when the tank was about three fourths full. If Bob bought 24 gallons of gas, how many gallons does the tank hold?

16. ## English

How is the underlined pronoun used in the sentence? Grandma and WE eat dinner together every Monday. A.possessive B.direct object C.subject D.predicate nominative Think the answer is A

17. ## Math

A water tank can hold 56 5/7 litres of water. How much water is contained in the tank when it is 2/5 full?

18. ## Science

Topic: Candles I was given a task to write an introduction for a report and according to the marking rubric, it must "justify the purpose of the investigation with relevance to real world applications with sources cited. Provides sufficient relevant

19. ## math

Richard went shopping and bought a pen, a book and a magazine. The magazine cost ¼ of a book. The pen cost 1/3 of the magazine. If he spent 734.40 pesos, how much did he spend for the pen?

20. ## science

I have been given the task to prove a hypothesis by conducting an experiment. Hypothesis: A candle will burn slower in a cooler environment. Independant variable: Temperature of the room (three temperatures) Dependant variable: Length of the candle after

21. ## English

How does the mother react when she realizes that the ship is sinking? A.She is in a state of shock and doesn't say anything and refuses to move. B.She is hysterical and screams and cries for someone to save her family. C.She is strong at first and comforts

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