sw

Most popular questions and responses by sw
1. math

two systems of equations are giving below for each system choosethe best description of its solution if applicable give solution x+4y=8 -x-4y= -8 choose which one this problem fit in 1)the system has no solution 2) the system has a unique solution (x,y)=

2. physics

a stone is tied to the end of a string and is swung with a constant speed around a horizontal circle with a radius of 1.5m. if it makes two complete revolutions each second, what is the magnitude of its acceleration? i know the answer, but i don't know how

3. physics

A car travels along the curved path with radius of curvature p= 30m such that its speed is increased by at = (0.5e^t) m/s^2, where t is in seconds. determine the magnitudes of its velocity and acceleration after the car has traveled s = 18m starting from

4. math

Arrange the fractions in order from smallest to largest. , , , 5/8,3/4,9/16,7/8 Add. Write the answer in lowest terms. 3 2/7 + 5 3/7 Subtract. Write the answer in lowest terms. 6 4/5 - 2 1/5 Evaluate. Write the answer in lowest terms. 8/15-4/15+1/15 Add.

5. math help

suppose that the functions p and q are defined as p(x)=x^2+3 q(x)= squarex+2 (q*p)(2)= (p*q)(2)=

6. math

A circular coffee table has a diameter of 5 ft. What will it cost to have the top refinished if the company charges \$3 per square foot for the refinishing?

7. math

13 out of 25 college students work at part-time jobs. What percent work at part-time jobs?

8. science HELP!!!!!!!!!

What role does nitrogen play in plant growth

9. math

graph the absolute value function and state its domain and range y=|x-1|+2

10. Math

I have tried this problem a few ways, and I am getting frustrating results. Could you help me out by showing me how to set the systems of equations Two angles are complementary The sum of the measure of the first angle and 1/4 the second angle is 82.5.

11. math

find the median 22,55,43,26,33,36,43,25 answer is 33 and 36

12. math

add: 2 1/2 + 3 1/4 + 3 5/8

divide 12

14. math

Write 3/8 as a percent.

15. math

A new car depreciates an average of 22% in its first year of use. If the car was worth \$16,000 when it was new, what will the car be worth after 1 year?

16. math

lula wants to round 76.24491 to the nearest hundredth. she first rounds 76.24491 to 76.245 and then rounds 76.245 to 76.25 and claims that this is the final answer. what went wrong with this approach.

17. science

Examples of positive, negative and neutral friction? We always learned about friction as either being positive (tires gripping the road, brake friction for stopping etc.) or negative friction (causing wear or heat as in a bearing or engine due to parts

18. macroeconomics

The interest rate were zero under the old government.The GDP is \$700 and at that time people kept a total of \$120 in cash stored as well as %50 worth of bonds. However, under new government the interest rate has risen to 36%. On average, cash is used five

(y2-3y)

20. Logic

One way to disconfirm the scientific hypothesis that chickens cannot fly would be to ask someone. look very hard for a chicken that can fly. simply assert that chickens can fly. simply assert that chickens cannot fly.

21. physics

imagine a flat, lightweight wheeled cart that's low to the ground and has well-oiled bearings. what would happen if you approached the cart, stepped onto it, and walked along its length at a constant speed? it would a) remain nearly stationary b) advance

22. math

solve for the unknown? 2/x = 4/14

23. math

On the blueprint of Lauren's new office building, the scale is 3 in. equals 8 ft. What will be the actual length of Lauren's office if it measures 6 in. long on the blueprint?

24. math

Determine whether the pair of fractions is proportional: 4/13=8/26

25. vacation

If you were going on vacation to New Zealand in December......... What would you pack??? THANKS FOR HELPING!!!!!!! Since December is wintertime in the northern hemisphere, it's summer in the southern hemisphere, where New Zealand is -- so pack for summer.

r2-14r+31

27. math help

The one-to-one functions and are defined as follows. g={(-3,6),(-2,4),(3,7),(6,-9)} h(x)=2x-9 find the following g^-1(6)= h^-1(x)= (h^-1 oh)(1)=

28. Astronomy

Suppose the Sun were twice as massive as it actually is. What would be the orbital period of a planet at a distance of 10AU from the Sun?

29. Logic

If I move to Texas, I will need air conditioning. I don't need air conditioning. So I didn't move to Texas" is an argument form known as (Points : 1) modus ponens. modus spumoni. modus operandi. modus tollens.

30. math

evaluate l-24l -l19l

31. math

perform the indicated operation (-4)3sq

32. math

subtract -2-8 81-(-13)

33. math

place in ascending order. 2,19/9,-9,-17/12,1/65,-5,29/6

-2-8 81-(13)

36. math

Write a proportion that is equivalent to the statement: If 2 pizzas can feed 7 people, then 6 pizzas can feed 21 people.

37. math

Write a proportion that is equivalent to the statement: If 2 pizzas can feed 7 people, then 6 pizzas can feed 21 people.

38. math

arrange in order from smallest to largest. 2.05,25/10,2.0513,2.059,251/100,2.0515,2.052,2.051

39. math

lunch meat sells for about \$3 per pound. you use about 1/2 per day for sandwiches. how much should you budget for lunch meat over the next month(about 20 workdays)

40. macroeconomic

Can someone help me with this question pls.. A country has a factory and build two bulldozers at a total cost of \$320. The country also know that due to the miscalculation of demand, the factory had been unable to sell some of its output of baked

41. Research

I need to do a report on miscegenation. I need to know: the beginning of these laws, what the law states (past & Present), the punishment given to those who broke them, and the abolishment of these laws. Please can someone give me a website to look up

42. science HELP!!!!!!!!!

What are 3 essential things that an observational report must have in order to be scientific???? HELPPPPP!!!!!!!!! I'm not sure what you are asking. However, I will try to answer your question. I am assuming that you are not referring to a classical

43. Math HURRY !!!!!!!!

hOW DO YOU FIND OUT IF YOU HAVE A PROFIT !!!!!!!!!!!!!! Find out the gross income (all income) and subtract the expenses. The result is net income or profit. http://www.answers.com/topic/profit =)

1. childcare

thx every one, I have completed my course successfully, with a 95% average

posted on June 1, 2014
2. Logic

thanks.

posted on September 11, 2011
3. Logic

ok, then i think it would be to look for a chicken that can fly to prove them wrong

posted on September 11, 2011
4. Logic

to assert means to confirm

posted on September 11, 2011
5. Logic

would it be to ask someone or look for a chicken that can fly. they can fly but to a short distance from the roof top of a house to ground but not in great distance.

posted on September 11, 2011
6. Logic

so which is it?

posted on September 11, 2011
7. Logic

simply assert that chickens cannot fly.

posted on September 11, 2011
8. physics

would it be c?

posted on April 10, 2011
9. physics

thank you sooo much! :)

posted on April 9, 2011
10. physics

you're a lifesaver thank you!

posted on April 5, 2011
11. Math

Are you sure that the sigh does not change In the second problem? I thought that when you divide by neg then the signs switch? My instructor told me that the first one was wrong, so I kept going over it and over it, and she insists that it is wrong, unless

posted on December 20, 2009
12. algebra

The formula R= - 0.075 + 3.85 can be used to predict the world record in the 1500 meter run, t years after 1930. Determine an inequality that identifies the years in which the world record will be less than 3.4 minutes. Solve for T t > (Round to the

posted on July 24, 2009
13. math

divide 12/-4

posted on April 26, 2009
14. Math

A circular coffee table has a diameter of 5 ft. What will it cost to have the top refinished if the company charges \$3 per square foot for the refinishing?

posted on March 25, 2009