sid

Most popular questions and responses by sid
1. Math

The radius of a cylinder is 3.5 ft. The height is 14 ft. Find the surface area and volume of the cylinder to the nearest tenth of a foot. I think the volume is 538.51 in^3. I just don't know the SA. Is it, possibly, 164.85 in^2. Or, no where closer than

2. Math

How many 7th grade students are expected to move by the end of the year? If 12 students actually moved, did more or fewer 7th-grade students move than expected? Justify your answer. 6th-grade # of students: 250 % moves: 2% 7th-grade # of students 200 %

3. statistics- one quick question please :)

the graph shows a non standard normal distribution curve with a mean of 59.0 and a standard deviation of 6.7. Find the area of the shaded region. *there's a picture of the curve, the shaded region is labeled with the value 64.2 Choices: a. 0.2177 b. 0.7823

4. Physics

A 940 kg car moves along a horizontal road at speed v0 = 16.8 m/s. The road is wet, so the static friction coefficient between the tires and the road is only μs = 0.196 and the kinetic friction coefficient is even lower, μk = 0.1372. The acceleration of

5. physcial science

Which of the following statements about Ohm’s Law is true? A. Increasing the voltage decreases current. B. Keeping the same voltage and decreasing resistance decreases the current. C. Ohm’s law relates power, current and resistance. D. To increase the

6. curriculum

When children think in a convergent manner: A. They center on already-known facts. B. They are able to think in many different directions about a problem. C. They are thinking creatively. D. They are thinking intuitively.

7. physics

Water flows through a horizontal tube of diameter 2.6cm that is joined to a second horizontal tube of diameter 1.7cm . The pressure difference between the tubes is 8.0kPa.Find the speed of flow in the first tube.

8. Physics

A person makes a quantity of iced tea by mixing 500g of hot tea(c=4190J/(Kg.k) with an equal mass of ice(T=0c, L=333KJ/Kg). assume that mixture has negligible energy exchange with environment. If tea's initial temperature is 90c, then what is the

9. help meee

A cylinder shaped can needs to be constructed to hold 200 cubic centimeters of soup. The material for the sides of the can costs 0.03 cents per square centimeter. The material for the top and bottom of the can need to be thicker, and costs 0.05 cents per

10. math

An airline knows that, on average, the probability that a passenger will not show up for a flight is 6%. If an airplane is fully booked and holds 300 passengers, how many seats are expected to be empty? If the airline overbooked the flight by 10

11. physic

to move a large crate across a rough floor, you push down on it at an angle of 21 degree. find the force necessary to start the crate moving, given mass of the crate is 32 kg and the coefficient of static friction between the crate and the floor is 0.57

12. math

An airline’s weekly flight data showed a 98% probability of being on time. If this airline has 15,000 flights in a year, how many flights would you predict to arrive on time? Explain whether you can use the data to predict whether a specific flight with

13. physcial science

A device that changes mechanical energy to electrical energy by rotating a coil of wire through a magnetic field is called a(an) A. transformer. B. generator. C. electromagnet. D. current meter.

14. chemistry

When 4.2g of NaHCO3 is added to a solution of CH3COOH Weighing 10g, it is observed that 2.2g of co2 is realised into the atmosphere . The residue left is found to be 12g . Show that this observations are in agreement with the law of conservation of mass?

15. physcial science

What creates a magnetic field? A. charged particles that do not move B. moving electric charges C. gravity D. an isolated magnetic pole

16. MATH

A cone-shaped cup is made from a circular piece of paper of radius 12 by cutting out a sector and joining the edges AC and BC.

17. math

A gas pump machine rejects 12% of credit card transactions. If this is twice the normal rejection rate for a normal gas pump, how many out of 500 credit card transactions would a normal gas pump machine reject?

18. physcial science

What type of current is produced by a battery? A. parallel current B. alternating current C. direct current D. potential current

19. help

If you know the power rating of an appliance and the voltage of the line it is attached to, you can calculate the current the appliance uses by A. multiplying the voltage by the power. B. subtracting the power from the voltage. C. dividing the voltage by

20. physics

The mass of a solid cube is 1200 g, and each edge has a length of 4.15 cm. Find the density of the cube. Answer in units of kg/m^3

21. Math

A scuba diver located 20 feet below the surface of water spots a shipwreck at a 70 degree angle of depression. After descending to a point 45 feet above the ocean floor, the diver sees the shipwreck at a 57 degree angle. Draw a diagram to represent the

22. math

A boy spent one-half of his money for a book and one-third of his money for a pen. The remaining \$2.25 he saved. How much money did he have originally?

23. math

A salmon has to swim 25 miles upstream. It swims 7 miles each day and drifts back 5 miles each night. How may days it take for the salmon to first reach 25 mile mark?

24. physcial science

8. which picture(s) would best represent atoms in the gas of a neon sign?

25. physics

A brick is thrown upward from the top of a building at an angle of 25° to the horizontal and with an initial speed of 16 m/s. If the brick is in flight for 3.1 s, how tall is the building?

26. Math

Rolling 6 dice, what is the probability of rolling six of a kind?

27. chemistry

20g of NaHCO3 Treated with 22g of HCl Producing 12g of the residue. What is the amount of co2 Formed ?

28. Gupta

When Two Resistors Are Joined In Series , The Equivalent Resistance Is 45 Ohm. When The Same Are Connected in Parallel , The eq. Resistance is 10 Ohm. Calculate The Two Resistances.

29. physcial science

A transformer has a primary coil with 600 turns and a secondary coil with 300 turns. If the output voltage is 320 volts, what is the input voltage? A. 8 volts B. 150 volts C. 640 volts D. 600 volts

30. chemistry

write the net ionic equation of the following reaction: HCl(aq)+NaOH(aq)--> NaCl(aq)+H2O(l)

31. physcial science

The type of current in your home is mostly A. direct current. B. alternating current. C. series current. D. produced by batteries.

32. math

Rosy has been jogging for 3 weeks. In the first week She jogged 3 days each for 4/6 of an hour. During week 2 she jogged for 3/4 of an hour on 2 days. In week 3 she jogged 4 days each for 3/5 of an hour . WRITE one expression that would show the total time

33. geometry

Which equation is the correct equation to solve for x? Given ST = 5x + 1 , TU = 4x -1, and SU = 54 Its multiple choice and the answers given are- A)(5x + 1) + 54 = 4x - 1 B)(4x - 1) + 54 = 5x + 1 C) 5x + 1 = 55 - 4x D) 5x + 1 = 27

34. math

3/14 of rosebuds in a garden bloomed yesterdday and 2/5 of the remaining rosebuds bloomed today.66 rosebuds have not yet bloomed.how many rosebuds were there in total? how many rosebuds bloomed today?

35. chemistry

Convert 50 ppm NaCl to molarity of NaCl

36. Math 4

Barnyard and Barley's circus is in town, and Lorena is going with her father.They have seats in the balcony. When Lorena and her father arrive at the performance,they can choose from 6 entrances to the ground floor of he main arena. There are two stairways

37. Trigo

From the top of the mountain 30m. Above the sea level, the angle of depression of two ships lying in a vertical plane with a mountain top measure 28° and 23°. Find the distance between the ships.

38. physcial science

If a step-up transformer has a primary coil with 15 turns, how many turns would be required in the secondary coil in order to increase the voltage from 80 volts to 160 volts? A. 8 turns B. 30 turns C. 80 turns D. 160 turns

39. chem

what is the relationship between the amount of heat produced per mole of reactant?

40. Math

how many positive three-digit numbers are there that have no digits repeating?

41. socialstudies

what is population distribution

42. cardiorespiratory fitness

The most common reason for dropping out of a cardio program is?

43. chem

the following reaction occurred at 45 degrees all gases h2+f2=2hf the equlibrium conc in a 5ml container are h2=.0500m, f2=.0100m and hf =.400m. if .200ml of f2 is added calculate the concentrations and pressures of all gases once equlibrium is

44. Math

Jane makes necklaces .she uses one pendant for each necklace.there are 6pendants and 10 ribbons in a pack.what is the least number of necklaces jane can make without having any ribbons or pendants left over

45. Math

Jane makes necklaces .she uses one pendant for each necklace.there are 6pendants and 10 ribbons in a pack.what is the least number of necklaces jane can make without having any ribbons or pendants left over

46. Physics

A car travels in a straight line for 4 h at a constant speed of 63 km/h. What is its acceleration? Answer in units of m/s^2?

47. physics

if a wire of length 12cm it stress up to 25m what will be the final resistance .it initial resistance is 16ohm?

48. chem

what is the relationship between the amount of heat produced per mole of reactant?

49. algebra

what are extraneous solutions of an equation? Why do they sometimes occur in the process of solving rational equations? examples

50. algebra

when adding or subtracting rational exprssions, why do you need an LCD

What does it mean when you are asked to find the product of two numbers?

52. Math

Find the surface area of the solid represented by each net. 2 circles with attached to a rectangle who's height is 84 cm length is 86.8 cm and circle diameter is 26.6 cm

1. Single Room, Earth View by Sally Ride--Help!

tyhdht

posted on November 25, 2018
2. curriculum

posted on October 30, 2018
3. curriculum

D

posted on October 30, 2018
4. math

Ur a !@#\$%^& school sucks dk niga

posted on May 21, 2018
5. math

9 I've checked over and over and found that it's correct. RQ is literally half of MP

posted on December 2, 2017
6. Physics

The potential energy at the top is equal to the kinetic energy at the bottom, therefore mgh=.5mv^2. The masses do not matter sense they are equal to each other, so they may be canceled out. You know that the acceleration of gravity is 9.8, so to find the

posted on October 25, 2017
7. physics

15.8 sec

posted on April 24, 2017
8. math

answer is 3/5. I did dis on ixl and got it rit cuz im a math god

posted on January 31, 2017
9. chemistry

posted on July 11, 2016
10. chemistry

I want it in grams

posted on July 11, 2016
11. Chemistry

5.89

posted on April 22, 2016
12. Math

don't you just love it when people come here to say something is cheating? like .. why are you here in the first place?

posted on April 18, 2016
13. stat

Rejected

posted on March 14, 2016
14. ap physics

I'm asking for help so obviously I don't know the answer thanks for nothing jishka

posted on February 21, 2016
15. Algebra 2

is this answer 100 % sure...?

posted on July 22, 2014
16. Math

i failed because of above wrong answers.......hate all of u

posted on July 18, 2014
17. Math

these above are all wrong......dont follow

posted on July 18, 2014
18. math

2:10???

posted on April 24, 2014
19. physics(URGENT!!!!!)

A stick of length l = 60.0 cm rests against a wall. The coefficient of static friction between stick and the wall and between the stick and the floor are equal. The stick will slip off the wall if placed at an angle greater than θ = 49.0 degrees. What is

posted on December 10, 2013
20. Grammar

What about "Makes it equal to zero" then again i don't know the context.

posted on October 5, 2012
21. Grammar

yes

posted on October 5, 2012
22. Physics

thank u so much drwls

posted on May 27, 2009
23. english: crit. thinking

Wow anonymous gets angry that they couldn't cheat and get the correct answers!!! Hahahaha do the work yourself you bum!

posted on May 1, 2009