# Questions Asked onMarch 22, 2016

1. ## educational and tecnology

A Boolean search can help you narrow down your topic by doing what A( finding the most popular topic for you to research B( allowing you to restrict your search to look only for specific terms or groups of terms C(avoid searching for him popular topics D(

2. ## English

In the personification of death in the final scene what is romeo communicating? A: that death has taken Juliet as his love and he wants to keep her B: That death has failed to kill Juliet C: that death is like a thief who has stolen his love I think it is

3. ## Chemistry

If all of the SCN- was not converted completely converted to FeNCS^2+ when the calibration curve was prepared, would this raise or lower the value of Keq? Explain

4. ## Algebra

The first group was responsible for making 160 suits while the second group was responsible for making 25% fewer suits in the same amount of time. The first team made 10 more suits each day than the second team and finished its job 2 days before the

5. ## Algebra

A ship traveled 150 km with the current, and then turned around and traveled back, spending 5h and 30 min on its trip. Find the speed of the current if the speed of the ship in still water is 55 km/hour.

6. ## science help pls pls

Look at the position of Location 1, Location 2, and Location 3 in this picture. Simple diagram of a lake represented by a wavy circle. The circle is labeled 'Lake,' and there are three points outside of the lake: 'Location 1' is to the northeast of the

7. ## SS

Mainland Southeast Asia is a wide? (A) island (B) archipelago (C) peninsula (D) delta**

8. ## math

Find the next three terms in the sequence. –1, 9, 19, 29, . . . (1 point) A. 38, 37, 32 B. 40, 51, 62 C. 39, 49, 69 D. 38, 47, 56

9. ## Algebra

An automobile covered the distance of 240 km between A and B with a certain speed. On its way back, the automobile covered half of the distance at the same speed and for the rest of the trip he increased his speed by 10 km/hour. As a result, the drive back

10. ## math

2. Geoff planted dahlias in his garden. Dahlias have bulbs that divide and reproduce underground. In the first year, Geoff’s garden produced 6 bulbs. In the second year, it produced 12 bulbs, and in the third year, it produced 24 bulbs. If this pattern

11. ## Math

A back-to-back stem-and-leaf plot showing the points scored be each player on two different basketball teams is shown below. Team 1 | | Team 2 4 3| 0| 4 9 9 8 2 0| 1|0 1 7 6 1| 2|3 3 8 Key: 4|0|2 means 4 points for Team 1 2points for team 2 What is the

12. ## math

2. Geoff planted dahlias in his garden. Dahlias have bulbs that divide and reproduce underground. In the first year, Geoff’s garden produced 6 bulbs. In the second year, it produced 12 bulbs, and in the third year, it produced 24 bulbs. If this pattern

13. ## trigonometry

tanA - sin A /sin^2A= tan A / 1 + cosA Please prove this

Use equal intervals to make a frequency table for the average number of movies per person. You do not need to show tally marks. Country Average Number of Movies Turkey 0.5 Japan 1.2 UK 1.3 Finland 1.3 Austria 1.5 Germany 1.8 Spain 2.2 Sweden 2.2 Denmark

15. ## math

At a certain time of day, a pole, 5 meters tall, casts a 3 meter shadow. The shadow of the building beside the pole is 18 meters long. How tall is the building? How long will the shadow of a 45 meter building be?

16. ## probobility

4 -letter "words" are formed using the letters A, B, C, D, E, F, G. How many such words are possible for each of the following conditions? (a) No condition is imposed. Your answer is : Preview (b) No letter can be repeated in a word. Your answer is :

17. Use equal intervals to make a frequency table for the average number of movies per person. You do not need to show tally marks. Country Average Number of Movies Turkey 0.5 Japan 1.2 UK 1.3 Finland 1.3 Austria 1.5 Germany 1.8 Spain 2.2 Sweden 2.2

18. ## Math

Marissa bought 6 fewer pints of soda than orange juice. How many cups of soda did she buy?

19. ## Chemistry

a) how many moles of atoms are in 1 mole of Ca3(PO3)2 b)If I have 1 mole of Ca3(PO3)2, how many moles of PO3^3- ions do I have? c)How many individual PO3^3- ions do I have?

20. ## math

Wendy noticed that out of 345 cars that passed her house, 56 were SUVs. About how many SUVs could she expect to pass by if 2,100 cars were to pass by her house?

21. ## Math Probability

Ben is greeting customers at a music store. Of the first 20 people he sees enter the store, 9 are wearing jackets and 11 are not. What is the experimental probability that the next person to enter the store will be wearing a jacket? Enter your answer as a

22. ## Math

About. 7.5 gallons of water filled up 1 cubic foot of space. How many gallons of water will fill a goldfish pool shaped like the prism shown. 3 ft for length 3.5 ft for width 1.5 ft for height

23. ## Math

Triagle abc is reflected over the y-axis what are the coordinates of the refected triangle describe in words what happens to the x coordinates and the y coordinates of the orignal triangle's vertices as a result of this reflection

24. ## Chemistry

What is the total mass of KNO3 that must be dissolved in 50 g of water at 60 degree C to make a saturated solution?

25. ## health

which disorder can be triggered by tobacco smoke,mold, or perfumes? A. tendonitis B. dialysis C. blood clot D. asthma my answer: D am i right?

26. ## Math

A bus travels 400 Miles in 8 hours how many miles will the bus travel in 2 days

27. ## Math

While bowling with friends, Brandy rolls a strike in 5 out of 10 frames. What is the experimental probability that Brandy will roll a strike in the first frame of the next game? Enter your answer as a simplified fraction. Is it 5/10 probability and 5/10

28. ## Physics

A 63-kg ice-skater glides with a speed of 10 m/s toward a 14-kg sled at rest on the ice. The ice-skater reaches the sled and holds on to it. The ice-skater and the sled then continue sliding in the same direction in which the ice-skater was originally

29. ## math

Jessica buys a lamp that costs \$35 and a table that costs \$75.00. If the tax rate is 10%, what will be the total cost of the lamp. I know is not 110, is between. A #117, B \$118, C \$119, D \$120, E \$121, Can somebody help me.

30. ## Algebra

the denominator of a fraction exceeds the numerator by 7, if the numerator is increased by 3, and the denominator is increased by 5, the resulting fraction equals 1/2. Find the original fraction.

31. ## math

A 10-foot ladder is leaning against a wall. The base of the ladder is 2 feet from the base of the building. How far up the building does the ladder fall?

Carol has a collection of 100 stamps the graph below shows the percentage of stamps she has from each country how many more of Carols stamps are from France than from Norway? France: 24%, England:22%, Norway:29%, Italy:25%. a.) 5 stamps* b.) 24 stamps c.)

33. ## Physics

The figure (Figure 1) shows a model of a crane that may be mounted on a truck.A rigid uniform horizontal bar of mass m1 = 80.0 kg and length L = 5.30 m is supported by two vertical massless strings. String A is attached at a distance d = 1.90 m from the

34. ## science help

Two factors which cause global climate change are listed below. Factor 1: Volcanic eruptions. Factor 2: Changes in the amount of Sun’s heat received by the Earth’s atmosphere and surface. Which of these statements is correct about the two factors which

35. ## Math Probability

Philip rolls a standard number cube 24 times. Which is the best prediction for the number of times he will roll a number that is even and less than 4? Is it 4 times? Ryan flips a coin 8 times and gets tails all 8 times. What is the experimental probability

36. ## science help PLS

Plants take up carbon dioxide from the air and nutrients from the soil. This is an example of interactions between the geosphere, cryosphere, and atmosphere biosphere, atmosphere, and geosphere atmosphere, hydrosphere, and geosphere cryosphere, atmosphere,

37. ## science

3 identical point charges each one micro coulomb placed at vertices of an equilateral triangle 10cm apart calculate the force on each charge

38. ## social stuides

What was the purpose of Jim crow laws in south Carolina? a. To stop African Americans from voting ** b. To stop poor whites from voting c. To take land for African Americans d. To help African Americans gain jobs What was the purpose of the freedmen’s

39. ## math

A bag contains 8 white marbles and 2 black marbles. You pick out a marble, record its color, and put the marble back in the bag. If you repeat this process 45 times, how many times would you expect to remove a white marble from the bag?

40. ## Probl

a ladder 8 meters long leans againts the wall of a building. if the foo|t of the ladder makes an angle of 68^0 with the ground how far is the base of the ladder from the wall ?

41. ## math

Tim Tele received a \$380 discount loan to purchase a DVD player. The loan was offered at 18% for 60 days. Find the interest in dollars and the proceeds for the following problem.

42. ## Social Studies CHECK MY ANSWERS

How did the economy of South Carolina change after the Civil War? A. Several industries developed in the state. B. Most freedmen became landowners. C. Cotton was no longer the chief crop. D. Former slaves did not provide farm labor. Is it D

43. ## math

Jason, Erik, and Jamie are friends in art class. The teacher randomly chooses 2 of the 21 students in the class to work together on a project. What is the probability that two of these three friends will be chosen? A. 1/105 B. 1/70 C. 4/50 D. 34/140

44. ## Physics

What is the average useful power output of a person who does 5.90×106 J of useful work in 7.90 h?

45. ## Chemistry

a) If you have 5 dinitrogen monoxide molecules, how many nitrogen atoms do you have? b) If I had 5 moles of dinitrogen monoxide molecules, how many individual nitrogen atoms would I have? I think the answer for A is 6 nitrogen atoms. but I have no idea on

46. ## maths

The parallel sides of a trapezium have lenghts 5cm and 8cm..The other two sides have the lenghts 6cm and 4cm..Find the angles of the trapezium?

47. ## science help pls pls

The diagram below shows the movement of energy in the water cycle. Diagram showing the movement of energy in the water cycle. There are three boxes and six arrows that appear in the following order: box labeled 'Atmosphere,' one arrow pointing to a box

48. ## Math

You use a line of best fit for a set of data to make a prediction about an unknown value. The correlation coefficient for your data set is -0.015. How confident can you be that your predicted value will be reasonably close to the actual value? My guess is

49. ## Public Speaking

This type of responsibility involves being aware of the consequences of what you speak about and how you say it. A. Thinking responsibility B. Criticizing responsibility C. Ethical responsibility D. Evaluating responsibly This is what I logically know:

50. ## math

A special diet is intended to reduce systolic blood pressure among patients diagnosed with stage 2 hypertension. If the diet is effective, the target is to have the average systolic blood pressure of this group be below 150. After six months on the diet,

51. ## math

Can you check my answers please? Thank you Ben is greeting customers at a music store. Of the first 20 people he sees enter the store, 9 are wearing jackets and 11 are not. What is the experimental probability that the next person to enter the store will

Camille Keegan sells lamps for \$105.55 that cost her \$75.00. Camille's percent of markup based on the selling price is:

53. ## Math

The side of retangular floor are xm and (x + 7)m.the diagonal is (x + 8)m,calculate the value of x

54. ## math

A rectangle has a width of 4 inches and a length of 6 inches. A similar rectangle has a width of 12 inches. What is the length of the similar rectangle?

55. ## chemistry

how many grams of solid calcium oxide must react with excess water to liberate the same quantity of heat as does the combustion of 24.4 l of methane gas (CH4), measures ar 24.7 c and 753 torr? CaO +H2O --> Ca(OH)2 Delta H = -65.2 KJ CH4 + 2O2 --> CO2 +2H20

56. ## Statistics

The home states of a certain group of people are distributed as follows: 54 percent are from MISSOURI, 27 percent are from KANSAS, and 19 percent are from IOWA. (No one in the group had a home state other than one of these three.) (Note: Your answer to the

57. ## math

You draw one card at random from a shuffled deck of 52 playing cards. The deck has four 13−card suits (diamonds, hearts, clubs, spades). The card is a club or a spade. Find the probability of this event. Write each answer as a fraction in simplest form,

58. ## Chemistry - Gas Laws

Pressurized carbon dioxide inflators can be used to inflate a bicycle tire in the event of a flat. These inflators use metal cartridges that contain 16.0 g of carbon dioxide. At 295 K, to what pressure (in psi) can the carbon dioxide in the cartridge

59. ## Algebra

A photo is printed on a 20-inch by 24-inch piece of paper. The photo covers 320 square inches and has a uniform border. What is the width of the border?

60. ## life orientation

propose 6 practical actions that you can take to address human right violation of xenophobia in your community

61. ## Public Speaking

If your listening preference is to “cut to the chase” by getting to the point quickly, then you are a(n) __________ listener. A. time-oriented*** B. action-oriented C. content-oriented D. people-oriented

62. ## math

The Fernandez family drove 273 miles in 5.25 hours. How far would they have driven at that rate in 4 hours? A rectangle made of square tiles measures 10 tiles long and 8 tiles wide. What is the width of a similar rectangle whose length is 15 tiles? While

63. ## Tokak

The parallel sides of a trapezium have lenghts 5cm and 8cm..The other two sides have the lenghts 6cm and 4cm..Find the angles of the trapezium?

64. ## Algebra

Justin recently drove to visit his parents who live 480 miles away. On his way there his speed was 20 miles per hour faster than on his way home (he ran into bad weather). If Justin spent a total of 20 hours driving. Find the two rates.

65. ## Math

Write a function that represents the situation. Find the balance A in the account after the given time period t. \$2000 deposit that earns 5% annual interest compounded quarterly; 5 years A function is A= The balance of the account after 5 years is \$_

66. ## Social Studies CHECK MY ANSWERS

Which criticism did Tillman direct at Conservatives? A.They controlled the office of governor. B.They didn't think blacks should vote. C.They believed in white supremacy. D.They didn't care about common people. Is it C

67. ## Physics

A student on a piano stool rotates freely with an angular speed of 3.07 rev/s. The student holds a 1.38 kg mass in each outstretched arm, 0.759 m from the axis of rotation. The combined moment of inertia of the student and the stool, ignoring the two

68. ## math

One of the standard telephone numbers for directory assistance is 555−1212. How many different permutations of this telephone number are possible?.

69. ## Chemistry

Mothballs are composed of a chemical called naphthalene which has a formula of C10H8 a) what is the mass of a single naphthalene molecule in amu? b) what is the molar mass of naphthalene? c) what is the mass of a single naphthalene molecule in grams? I

70. ## math

Rebecca rolls two number cubes each with sides that are labeled 1 to 6. What is the probability that both number cubes show a 1?

71. ## Physics

An electric kettle has a power of 1.2kw. How long will it take to heat 3 kg of water to the from 20¡ãC to 100¡ãC?

72. ## Physics

As a particle moves along the x axis it is acted upon by a single conservative force given by Fx = (20 - 4,0x) N where x is in m. The potential energy associated with this force has the value +30 J at the origin 9x =0). What is the value of the potential

73. ## Math

I am having a problem answering this math problem. Andrea has a box of marbles in it. She has seven red marbles, thirteen blue marbles and nineteen yellow marbles. If she reaches in and takes out marbles without looking, what is the fewest number of

74. ## English

What's your favorite food? 1. My favorite food is rice porridge. 2. My favorite food is rice soup. 3. My favorite food is rice gruel. 4. My favorite food is a hamburger. 5. My favorite food is hamburgers. 6. My favorite food is humburger. ================

75. ## algebra

One more than 3 times a number is the same as 5 times the number decreased by 15. Find the number

76. ## physics

A 9-kg block is held by a pulley system shown in fig. What force must the person exert in the following cases: a) to hold the block at rest. b) to lower it at 2m/s. c) to raise it with an acceleration of 0.5 m/s2? Ignore the mass of small pulley. Answer

77. ## Physics

What is the average useful power output of a person who does 5.90×106 J of useful work in 7.90 h? I got 207 W Working at this rate, how long will it take this person to lift 2400 kg of bricks 1.30 m to a platform? (Work done to lift his body can be

78. ## Physics

A sports car is accelerating up a hill that rises 17.0° above the horizontal. The coefficient of static friction between the wheels and the road is µs = 0.79. It is the static frictional force that propels the car forward. (a) What is the magnitude of

79. ## math

Marita orders 12 yards od material to make banners. if she needs 1 foot for each banner, how many banners can she make?

80. ## Math

2/5 of the total population of a village are children. 5/8 of the remaining are women and the rest are men.If there are 90 men in the village, calculate: total population, number of children, number of women

81. ## chemistry

A reaction mixture of N2O4 and NO2 absorbs the heat given off in the combustion of 6.35 L CH4 measured at 24.7 C and 812 Torr. How many moles of N2O4 can be converted to NO2 as a result? CH4 + 2O2 --> CO2 + 2H2O Delta H = -890.3 KJ N2O4 --> 2NO2 Delta H =

82. ## Chemistry

What is the percent yield of the reaction below if 2.23g of hydrogen gas react with 55.3 g of iodine to produce 43.1g of HI. use the equation below: H2+I2=2HI the answers: a) 21.8 b) 77.3 c) 33.7 d) 87.1 I started by trying to find the limiting reagent. I

83. ## Massey

In the field event known as the hammer throw, an athlete spins a heavy mass in a circle at the end of a chain. When the athlete lets go of the chain, the mass flies off in a parabolic arc; the winner is the one who gets the maximum distance. For male

84. ## Maths

A fair coin is tossed 5 times. If X is the discrete variable the # of tails obtained, a) Draw the probability distribution . b) Find P (X

85. ## Physics

Suppose under the certain conditions, the maximum force of friction that could act on a certain car was 3.35*10^3 N. The mass of the car is 857kg. What is the maximum possible centripetal acceleration of the car going around a bend? I know the equation for

86. ## Physics

A 64.8 kg ice skater is skating along in a straight line (in the positive direction) at 9.2 m/s when he bends down and scoops up his 24.4 kg doggy sitting still on the ice. What will be the new velocity of the dog-n-skater?

87. ## Algebra 2

Q: What is the value of b in the equation 4^2b-3 = 8^1-b? My Work/Answer: Set each sides base to 2 2^2(2b-3) = 2^3(1-b) cancelled bases out solved for b my answer - 9/7 Is my work and answer correct Thank You

88. ## Chemistry

for the redox reaction given in the chemical equation Pb(OH)4^2- (aq) + ClO- (aq) --> PbO2 (s) + Cl- (aq) For the oxidation half reaction I got Pb(OH)4^2- (aq) --> PbO2 (s) + 2H2O (l) + 2e- For the reduction half reaction I got 2e- + 2H2O(l) + ClO-(aq) -->

89. ## Chemistry lab

A 1.340gram sample of an unknown acid, H3A, was placed in a 250.0 mL volumetric flask and diluted to volume with water. A 45.35 mL sample of this acid solution was titrated with 37.77 mL of a 0.1006M NaOH solution. A) Using one set - up dimensional

90. ## Probability and statistics

Assume that a procedure yields a binomial distribution with a trial repeated n times. Use the binomial probability formula to find the probability of x successes given the probability p of success on a single trial.n=22, x=18, p=0.85, q=.15

91. ## math

a book containing 4 identical books weighs 5kg if the weight of the box is 600g what is the weight of each box

92. ## Physics

Is this right? When a 5 kg box is lifted 3 meters from the ground, calculate the gravitational potential energy stored in the box. Calculate the work done by a Force to lift the box at a constant speed. Compare this answer to the amount of gravitational

93. ## physics

Which is the vector quantity that describes the shortest path between two points?

94. ## Chemistry

A certain compound contains 8.74% Carbon, 13.8% Fluorine, 77.4% Chlorine by weight. A possible molecular formula for this compound might be? I think the answer is CF2Cl26 multipy mass of each element by the percent: c: 12.01*.0874=1.049674 F: 19*.138=2.622

95. ## Algebra

Kim invested a total of \$1500 in two accounts. One account paid 2% annual interest and the other paid 4% annual interest. After one year, Kim earned \$44 in interest. How much did she invest in each account?

96. ## geometry

The area of a triangle is 6 square feet. The base is 3 times the height. What is the base of the triangle?

97. ## MCC

3. (Consumption and Saving) Supposed that consumption equals \$500 billion when disposable income is \$0 and that each increase of \$100 billion in disposable income causes consumption to increase by \$70 billion. Draw the graph of the consumption function

98. ## Algebra

A train covered the distance of 400 km between A and B at a certain speed. On the way back it covered 2/5 of the distance at that same speed and then it decreased its speed by 20 km/hour. Find the speed of the train at the end of its journey from B back to

99. ## HOW TO START YOUR OWN CHILD DAY CARE FACILITY

Which one of the following is an advantage of setting up a family day care home? A. You can obtain a tax-exempt status. B. You can enroll as many children as you wish. C. You'll be eligible for federal aid. D. Your own child or children will have children

100. ## Math

What is difference between cube and square prism?

101. ## physics

Driving down Highway 401 in Ontario, it had rained and stopped raining by the time I came to the freezing rain on the highway. I knew there was a problem when the cars in front of me started to fly off the highway at the curve in the road. Assume the curve

102. ## Chemistry

Which four salts could undergo hydrolysis to act as buffers if added to their parent acid or base? KF KH2PO4 NaCl KBr NaClO4 C5H5NH3Cl NH4Cl

103. ## Physics

A single conservative force Fx = (6.0x - 12) (x is in m) acts on a particle moving along the x axis. The potential energy associated with this force is assigned a value of + 20 J at x = 0. What is the potential energy at x = 3.0 m?

104. ## English

Which class are you in? 1. I'm in class 1-2. (I am a member of Calss 1-2. In the classroom, there are 30 students.) 2. I'm in math class. (I'm listening to the math teacher. It's time for studying math.) ==================== What is the answer to the

105. ## maths geomentry help!!!

the area of a sector PQR is a @rad.and the radius of the of the circle is rcm,the area of the sector is 20cm^2 and the perimeter is 26cm.find r?

106. ## Math

What is the largest whole number that will round up or down to 900900900 if we're rounding to the nearest hundred

107. ## Chemistry

Determine the pH of a 0,050M solution of lactic acid, CH3CH(OH)COOH (ka = 1.4x10^-4) and delta Grxn^o at 25 degrees C. Determine pH and delta Grxn^o at 25 degrees C I'm having trouble on getting started.

108. ## biology

a)what are the main similarities b/n cholera and typhoid? b)what are the main d/ce b/n cholera and typhoid? c)how can the spread of cholera and typhoid be prevented as far as possible?

109. ## Algebra

A tourist traveled on a motorboat against the current for 25 km. And then returned back on a raft. In the boat the tourist traveled for 10 hours less than on the raft. Find the speed of the current if the speed of the motorboat in still water is 12

110. ## maths

IN AN ARITHMETICS SEQUENCE THE SEVENTH TERM IS 12 AND THE 21ST TERM IS 68. CALCULATE THE 68TH TERM.

111. ## Algebra

The difference between two numbers is 2. 3 times the larger number plus 1 half the smaller is 34. What is the equaution?

112. ## physics

Radio waves of wavelength 163 m from a galaxy reach a radio telescope by two separate paths as shown in the figure below. One is a direct path to the receiver, which is situated on the edge of a tall cliff by the ocean, and the second is by reflection off

113. ## LINCENSING ACCREDIDATION AND CERTIFICATION

To obtain a credential from _______, it's acceptable to have received your training through independent study. A. the Child Development Associate training program B. the American Montessori Society C. your State Department of Education D. the Association

114. ## LOCAL STANDARDS AND REGULATIONS

Local, state, and provincial governments may have specific regulations that apply to the physical space in a day care center. A typical requirement in these regulations is a minimum of _______ square feet of usable play space for each child. A. 35 B. 24 C.

115. ## Math

Order the decimals and percents from least to greatest 0.12, 0.21, 1 / 4, 0.4 my answer is 0.12 0.21.0.25 because 1/4 equal. 25 and 0.4

116. ## math

A used guitar is on sale for \$280. Derek offers the seller 3/4 of the advertised price. How much does Derek offer for the guitar? IS \$240 correct?

117. ## Msth

Julia has 8 red barrettes 2/4 of her barrettes are red how many barrettes does Julia have?

118. ## Public Speaking

Speech criticism is a simpler form of: A. speech evaluation. B. rhetorical criticism.**** C. panel judging. D. communication process

119. ## physics

A tank attached to an air compressor contains 20.0 litre of air at a temperature of 30¡ãc and guage pressure of 4.00¡Á10^5 pa. What is the mass of air, and what volume would it occupy at normal atmospheric pressure and 0¡ãc. Air is a mixture of

120. ## physics

You see some management students getting drunk at 1 PM in the quad. (Yes, this is an early wake up call for them.) You decide to tie a 2.00 daN water balloon on the end of a 1.00 m long light rope and start swinging it horizontally. The rope from your hand

121. ## health insurance

The Patient received preventive medicine services. The physician's fee is \$150. The Patient's copayment is \$10 ( of the \$75 fee schedule ). The payer reimburses the physician 80% of the \$75 fee schedule. What is the amount the patient pays the provider:

122. ## math

jake is using a copy machine to increase the size oa a 2-inch by 3-inch picture of a spider. The enlarged picture needs to measure 3 inches by 4.5 inches. What enlargement setting on the copy machine should he use?

123. ## physics

Two stars with masses 2.75 x 10^30 kg and 5.92 x 10^30 kg form a binary system. If the two stars have an average separation of 7.28×10^8 km, compute the magnitude of the gravitational force in Newtons between the stars. Express your result in scientific

124. ## Math

Fit the rule: AEFHIKLMN. Did not fit the rule: BCDGJOP.What is the rule?

125. ## physics

Radio waves of wavelength 163 m from a galaxy reach a radio telescope by two separate paths as shown in the figure below. One is a direct path to the receiver, which is situated on the edge of a tall cliff by the ocean, and the second is by reflection off

126. ## English

What is your hobby? 1. My hobby is doing bunjee jumping. 2. My hobby is bunjee jumping. 3. My hobby is doing rock climbing. 4. My hobby is rock climbing. 5. My hobby is bowling. 6. My hobby is going bowling. 7, My hobby is doing bowling.

127. ## Maths

A positive two digit number is divided by the sum of its digits. What is the smallest and largest the result can be?

128. ## Algebra

Solve each system using substitution: x+ 2y = 8 and 3x-4y=4

129. ## Math

Ms.lynch has 21 coins in nickles and dimes.Their total value is \$1.65. How many of each coin does she have? 21 - ( 0.05x + 0.10x)=1.50 21- 0.15x = 1.50 0.15x=21-1.50 0.15x=19.5 ------ 0.15 = 19.5/ 0.15 x=130 ??????

130. ## Chem

How many oxygen atoms are present in 2.00 millimoles of H2SO4?

Why does methanol dissolve well in water. Explain using a diagram. I know that both H2O and CH3OH are polar, however what would I use for the diagram?

132. ## Algebra

Solve using substitution 5x-2y= 0 and 3x=y =-1

133. ## Math

Which of the following is equivalent (-2)-5 A.-2 + (-5) B.-2 + 5 C.2 + (-5) D.2-(-5)

134. ## math

at 8 am Dylan and his neighbor drove their cars to a city that was 240 mi. away from their neighborhood. when Dylan reached the city mickey had 40 mi. to go. he finally completed his trip48 minutes later

135. ## physics

a projectile is launched outward at an angle theta above an incline plane elevated an angle alpha above the horizon. when the projectile hits the plane it is moving horizontally. prove for this case that the angle theta must satisfy the following

136. ## Chemistry

How many moles of compound are present in 17g of Fe2O3? I think I know how to do this, so if someone can show me so I can check my work against it. My answer was .106 moles of Fe2O3.

137. ## chemistry

A sample of water is known to contain 1.51 × 10^24 H2O molecules. How many moles of H2O molecules are present in the sample?

138. ## Physics

How would I express the magnetic force in terms of Fmax if the angle between the velocity and the magnetic field direction is 10 degrees? I know the magnetic force equation is F=qVBsin(theta), but how do I put it in terms of maximum force (Fmax)?

139. ## Arithmetic progression

In an AP , Sn = 2n , S2n = n Find S4n

140. ## Chemistry

125.0g each of two solids, lead (II) nitrate and pottassiuk iodide are dissolved in the same beaker. A reaction occurs that produces a precipitate. How many grams of precipitate are produced in the reaction?

141. ## math

Listing fractions from the least to the greatest of 1/3,4/9, 3/4, 5/6, 5/8, 2/3, 3/12, 2/5

142. ## Chemistry

20ml H2SO4 and 10ml HCl can be neutralized by 20ml NaOH (0.1M) separately.Calculate the pH of the acids?

143. ## Physics

A box slides down a frictionless, 10-meter, 30o incline. Calculate the gravitational potential energy at both the beginning and end of the motion. Calculate the work done by GRAVITY as the box slides down the incline. Compare this to the overall change in

144. ## math

simplify 8^y+2 minus 34(2^3y) / (square root 8)^2y+1

145. ## math

sum of 4 terms of g p is 30 & sum of first and last term is 18 . Find gp

146. ## algebra

prove that if U and W are vector subspaces of a vector V, then UV, is a vector subspace of V

147. ## math

so if a trapezoid has 4 sides and the top(short) side and the two not parallel sides are all 5 inches long, what are possible lengths for the long (bottom) side? and are there more than 1 possible solution?

148. ## direct variation

For the statements below, y varies directly with x. Find y when x = −0.3.

149. ## math

An automobile tire has a diameter of 63 cm. What is the circumference of the​ tire? (Use pi equals3.14 as an approximate​ value.)

150. ## math

The length of a rectangular piece of steel in a bridge is 4 meters less than triple the width. The perimeter of the piece of steel is 56 meters. Find the length of the piece of steel. Find the width of the piece of steel.

151. ## math

Which car is the cheapest to run?Explain why. Bill's car: average fuel composition 20 miles per gallon Sue's car: average fuel composition 30 miles per gallon Fred's car: average fuel composition 40 miles per gallon I think the answer is Fred because his

152. ## Tax

A corp has domestic taxable income of \$400,000 and foreign-source taxable income of \$200,000. Their U.S. tax on worldwide income is \$204,000. The corp paid foreign income taxes of \$75,000. What is their foreign tax credit on their US income tax return?

153. ## algebra

let V=R^3 and S={e1,e2,e3}.prove that S is a basis of V

154. ## Chemistry

Which three substances' conjugates cannot act as buffers? i.e. There are no weak conjugates in the compounds. NH3 C6H5COOH H3PO4 NaHCO3 C5H5N HBr HF NaOH HClO4

Could you please explain how i would answer a question such as this one? 0.8 (2x + x) + 3(7 - 4.1x) = i went over the lesson provided by my teacher, and still don't understand it..

156. ## algrbra

1. David recently had a garage sale and has amassed a pile of change. How many of each coin (penny, nickel, dime, quarters) does he have if: a.There is at least 5 pennies, 5 nickels, 5 dimes and 5 quarters b.There is only a prime number of each coin c.The

157. ## divison&remainder

1^2+2^2+3^2+.......+10^10 when divide by 5 whats the remainder i made no typo that's the question i proff read

158. ## Tax

The Smiths son, Jake, is 19 and a full-time student in his second year of college. Jake paid \$5,650 in tuition during 2015, and another \$650 for textbooks. The Smiths are claiming Jake as a dependent. Their taxable income is \$13,000, and their tax

159. ## Tax

The corp has domestic taxable income of \$400,000 and foreign-source taxable income of \$200,000. Their U.S. tax on worldwide income is \$204,000. The corp paid foreign income taxes of \$65,000. What is their foreign tax credit on their US income tax return?

160. ## maths

Solve the quadratic equation ax2+bx+c=0 using the completing the squares

161. ## math

Solve the quadratic equation ax2+bx+c=0 using the completing the squares

162. ## algebra

let V be set of all functions with down R which are such that f(t)=Acost +Bsin t,t c R, where A and B are real numbers. define addition in V by (f+g)(t)=f(t)+g(t) and scalar multiplication by (¥f)(t)=¥(f(t)),¥€R.prove that V is a vector space over R

163. ## health part 2

Genital HSV-1 outbreaks recur ________ regularly than genital HSV-2 outbreaks. A. More B. Somewhat more C. Less D. None of the above B?

164. ## remainder help!@steve and damon

1^2+2^2+3^2+......+10^10 when it divided by 5 what the remainder???? even a hint can,t help me my head is fried have been do math alday just show me the working i beg!

165. ## math

find the product of 60x6

166. ## Math

Find the perimeter of the rectangle with length 9 inches and width 7 inches? 32.(MY ANSWER) 16. 63. 64.

167. ## Geography

unscramble these words risut its a type of watch

168. ## math

A rectangle has a width of 4 inches and a length of 6 inches. A similar rectangle has a width of 12 inches. What is the length of the similar rectangle?

169. ## MATH

List all of the integers there are between √13 and √50.

170. ## Math

Express 2x^3-9/x^3+6x^2+8x as partial fractions

171. ## computer programing

I am little lost how to do this here any help to show me? Create a program that uses a menu with options to enter information about monsters (monster type, special ability, weakness), print the monster information, or quit the program. Use data files and

172. ## Math

A rectangular garden bed is 3 2/3 ft by 4 1/2 ft. Bricks that are 1/2 ft wide are being laid inside the perimeter of the garden. What is the perimeter of the garden bed outside the brick edging? What is the area of the garden bed inside the brick edging?

173. ## math

Why are ocean levels not greatly affected

State the issue, the law, an analysis and conclusion to the follow case:- Mr Mehra was the managing director of Oakprime Ltd, the beneficiary under a letter of credit which had been issued by Trinidad National Bank (TNB) and confirmed by Standard Chartered

175. ## civics

how did the new jersey plan contribute to the creation of the us constitutions? a-it called for equal representation for all states b-it called for the 3/5 compromise c-it called for the creation of a bicameral congress d-it called for the end of slave

State the issue, the law, an analysis and conclusion for the following case:- Mr Mehra was the managing director of Oakprime Ltd, the beneficiary under a letter of credit which had been issued by Trinidad National Bank (TNB) and confirmed by Standard

178. ## Physics

Do you think the sun's gravity is greater or less than that of all the other planets?

179. ## Math

How do i get left side to equal rs? (Tanx/1+secx)+(1+secx/tanx)=(2/sinx)

180. ## algebra

how can i proove that every vector norm on C subscript n is continuos in the vector components the set of complex numbers

181. ## matematicas

como ayudar a mi hija con respuestas de STAAR Revew

182. ## math

i)use the substitution u=2^y to express the equation 3(2^y-1)=2^y+4 as a linear equation of u ii)hence solve the equation 3(2^y-1)=2^y+4

183. ## Maths

Mr A filled his car with fuel every fourteenth day. Mr B fills his car every eighth day. They both filled their car today. How many days will it be until they next fill their tanks again?

184. ## math

if a trapezoid has 3 sides that are all 5 inches long what are the possibilities for the long side? Like can it be 5 to make it a square?

185. ## science

If mass M explore into three pieces two of equal to M/4 move perpendicular to each other with 3m/s 4m/s determined velocity of third

186. ## Math

Jill said that An angle is made of any two rays is she correct explain

187. ## Algebra 2

How many mins/max are there in the equation x^3-4x^2-7x+10? I said that there are 2 because if it is to the 3rd exponent, it increases then decreases then increases again when graphed. Is my statement correct? Thank You

188. ## maths

What is the area of cross sectionof a pool which is 1.5m and 3m