# Questions Asked onSeptember 23, 2016

1. ## Calculus

Suppose you know f′(a) = R, a, R > 0. If f is an odd function, what is f(−a)? Explain

2. ## Physics

If a man is able to row at 5m/s in still water and he points his boat at a 50 degree angle from the shore in an upstream direction in a river that's flowing at 4 m/s how far, either up or downstream will be land on the other side of the river if the river

3. ## dosage calculations

1. ORDER: CEFTRIAXONE 750mg PO BID ON HAND: CEFTRIAXONE 250mg tabs a) Calculate single dose b) calculate 24hr dose. I got this answer: a) 3 tablets as single dose b) 1500mg for 24 hours Please verify if it's correct.

4. ## Pre-Calc 20

A rectangle has a diagonal of 18cm. The diagonal creates a 60 degree angle at the base of the triangle. Write an exact expression for the base and the height of the triangle.

5. ## Chemistry

8.4 g of a mixture of potassium hydroxide and potassium chloride were made up of 1 litre of aqueous solution. 20 cm of this solution required 24.2 cm of 0.1 m nitric acid for neutralisation. calculate the percentage by mass of potassium chloride in the

6. ## Chemistry

What volume of ammonia gas at s.t.p is required to neutralise 40 cm of 2 M sulpheric acid?

7. ## Pre-Calc 20

**EDIT** A rectangle has a diagonal of 18cm. The diagonal creates a 60 degree angle at the base of the triangle. Write an exact expression for the base and the height of the triangle. My teacher wants the base and height answered in roots so do you think

8. ## Chemistry

how many cubic cm hydrogen chloride gas at s.t.p would be required to precipitate all the silver ions from 32 cm of 0.08 M silver nitric solution?

9. ## Chemistry

84cubic centimeters of hydrogen chloride gas measured at s.t.p is dissolved in water and titrated with 0.15M sodium hydroxide.What volume of sodium hydroxide solution is required for complete neutralization?

10. ## Chemistry

20cubic centimeters of 0.27M sodium hydroxide solution is added to 18.2cubic centimeters of 0.75M hydrochloric acid.To the solution is then added excess magnesium.What volume of hydrogen gas measured at s.t.p evolved?

11. ## Chemistry

18cubic centimeters of 0.8Mlithium hydroxide is neutralized by 24cubic centimeters of 0.3Msulphuric acid.What is the formular of the salt formed?

12. ## Maths, science

An open box with square bases is to be made out of a given quantity of cardboard of area Csquare. show that the maximum volume of box is ccube/6√3cubic unit

13. ## algebra

Give the answed of the question Doreen ran 4 miles farther than ludy. Together, they ran a distance of 20 miles.How far did each ran?

14. ## chemistry

If you transfer 5 J of energy to 1 g water and to 1 g ethanol, each starting at the same temperature which would have a higher temperature at the end? Water or ethanol? or will they have the same temperature at the end?

15. ## Social Studies

What major advantage did the colonists have over the British during the Revolutionary War? A. colonists had more supplies than the British B. colonists had European support C. colonists had a better knowledge of the land than the British D. colonists had

16. ## value

two taps F And E are connected to a water tank.tap F can fill the tank in 2hours while E can empty it in 3hours.one day when the tank was a third full of water, the taps were opened at the same time.how long did it take to fill the tank?

17. ## math

the numerator of a fraction is 3 less than the denominator. if 4 us added to the numerator and to the denominator, the resulting fraction is equivalent to 3/4. find the original fraction

18. ## math

the numerator of a fraction is 3 less than the denominator. if 4 us added to the numerator and to the denominator, the resulting fraction is equivalent to 3/4. find the original fraction. Show your solution

19. ## 12

the product of 4 consecutive even number is always divisible by

20. ## 12

let X=(3^5^7^9)+1 find the last digit of x

21. ## 12

look at this series 940 940 931 931 922 922 ...what numbers should come next?

22. ## chemistry

is this statement true? More heat is needed for vaporization of a liquid compared with melting a solid of the same substance.

23. ## Operating System

if relocation is used, what are the contents of the relocation is used registers for job1, job2, job3 after compaction?

24. ## Calculus

Even after looking up how to do this and reading about it I still don't know how to find the slope of curve or the deritives . Please help solve these problems. 1. Y =x^3 p(-1, -1) 2. Y = x^4 /2 p(-1 , 1/2) 3. Y= 8x^4 -7x^2 +5x + 6 p(-1,2)

25. ## Math

How to compare 0.7 and 5/8

26. ## math

(i)prove that 1/1+sintheta +1/1-sin theta=2sec^2 theta

27. ## Chemistry

How many grams of ammonia are needs to produce 0.5kg of NH42So4

28. ## economics

This chart shows the components of nominal GDP for the years 2000 and 2001. All figures are in billions of current dollars. Components 2000 2001 Consumption $6,684$6,987 Investment $1,755$1,560 Government Spending $1,751$1,858 Exports $1,101$1,034

29. ## math

Jannah spent 2/3 hour doing her homework. How much minutes did she spent doing her homework?

30. ## Math

Ashleigh moed 50 lawns last Month. Keshia mored 40 less than twice than ashleigh. How many laws did Keisha moe

31. ## ,ath

Mr. Riley can make a profit by raising AT LEAST 50, but no more than 150, cattle. If c represents the number of cattle, write the inequality that best expresses the situation.

32. ## Trigonometry

a) The ship left the port and sailed for 2 hours on a course of 75O, at an average speed of 2.5 nautical miles per hour. b) North It changed its course to 165O and travelled for 3 hours, at an average speed of 4 nautical miles per hour. Your team is tasked