# Questions Asked onMarch 9, 2014

1. ## Biology

Sort the terms and phrases as to whether they function in or describe primary growth or secondary growth? Place each term or phrase to the appropriate bin. If the term or phrase describes both primary and secondary growth, place it to the "both" bin. If

2. ## Calculus Help

A model for the length of daylight (in hours) in Philadelphia on the tth day of the year is L(t) = 12 + 2.8 sin[(2π/365)(t − 80)]. Use this model to compare how the number of hours of daylight is increasing in Philadelphia on March 21 and April 21.

3. ## Math

If triangle MNO is congruent to triangle PQR, which of the following can you NOT conclude as being true? A. line NO congruent to QR B. angle N is congruent to angle Q C. line MN is congruent to PR D. angle M is congruent to angle P

4. ## English

What sets off the main conflict in A&P Answers are Three girls in a bathing suit enter a grocery store A grocery store clerk is distracted from his work A store manager enforces the stores clothing policy Thanks Is it Three girls in bathing suits enter a

5. ## math trig

A TOWER AND A MONUMENT STAND ON A LEVEL PLANE.THE ANGLES OF DEPRESSION OF THE TOP AND BOTTOM OF THE MONUMENT VIEWED FROM THE TOP OF THE TOWER ARE 13DEGREE AND 31 DEGREE,RESPECTIVELY;THE HEIGHT OF THE TOWER IS 145 FT. FIND THE HEIGHT OF THE MONUMENT.

6. ## social studies

Compare the presidential and congressional plans of Reconstruction.

7. ## Math

Is the line through points P(3,-5) and Q(1,4) parallel to the line through points R(-1,1) and S(3-3)? Explain please.

8. ## physics

A piece of metal has a mass of 85cg and a volume of 450L. What is its density in g/cm3? What would be the mass of 300 cm3 of this metal? What would be the volume of 00 ounces of this metal?

9. ## English

The writing style that shows the irrationality of human existence is called? Answers are Safire Tragedy Comedy Absurdist Thanks

10. ## MATH

Each triangle has three exterior angle measures (not necessarily distinct). Find all possible values of the sum of these measures in degrees. If you find multiple values, then list your answers in increasing order, separated by commas.

11. ## 1 question!

What are some examples of musculoskeletal disorders? headaches and seizures eyestrain, blurred vision, and dizziness low back pain, joint injuries, and repetitive strain injuries insomnia and anxiety

12. ## Math

Kat has a smoothie company.She needs to make 240 cups of fruit smoothies for the next day. If she wants to store the smoothies overnight in in quart containers,how many quart containers will Kat need?

13. ## Math 12

Danielle is buying a house that costs \$275000. She will finance the purchase with a 25 yr mortgage with an interest rate of 2.9%, compounded semi-annually. She must make a down payment of 15% of the purchase price. a) How much will each payment be? b) How

14. ## science

What pressure is required to reduce 75 mL of a gas at standard conditions to 11 mL at a temperature of 27 ◦C? what pressure would i use?

15. ## English

What sets off the main conflict in A and P. Answers are Three girls in bathing suits enter grocery store A grocery store clerk is distracted from his work A store manager enforces the stores clothing policy A clerk decides to rebel against a grocery store

16. ## Chemistry

A mixture of NaCN and NaHSO4 consists of a total of 0.60 mol. When the mixture is dissolved in 1.0 L of water and comes to equilibrium the pH is found to be 9.7.

17. ## Statistics

What is 0.095 on the z-score table or where

18. ## science

A distant spaceship carrying a red headlight, emitting light with wavelength 600nm, is heading towards the earth. Observers on the earth detect the light from the headlight as ultraviolet light with wavelength 200nm. What is the velocity of the spaceship?

asked by Relativity quest. help pls
19. ## Physics

Two dogs pull horizontally on ropes attached to a post; the angle between the ropes is 66.0∘. Dog A exerts a force of 278N , and dog B exerts a force of 324N . =Find the magnitude of the resultant force. =Find the angle the resultant force makes with the

20. ## science

An aerosol can contains gases under a pressure of 4.6 atm at 18◦C. If the can is left on a hot sandy beach, the pressure of the gases increases to 4.69 atm. What is the Celsius temperature on the beach

21. ## physics

astronomical observations of our milky way galaxy indicate that it has a mass about 8.0 *10^13 times the mass of our sun. a star orbiting on the galaxy edge is about 6.0*10^4 light years a way from the galactic center what is the orbital period of that

22. ## Chemistry

Potassium permanganate (KMnO4) solutions are used for the determination of iron in samples of unknown concentration. As a laboratory assistant, you are supposed to prepare 700. mL of a 0.200 M KMnO4 solution. What mass of KMnO4, in grams, do you need?

23. ## Physics

The differential gear of a car axle allows the wheel on the left side of a car to rotate at a different angular speed than the wheel on the right side. A car is driving at a constant speed around a circular track on level ground, completing each lap in

24. ## chem

f the synthesis of 1.00 mol of ATP from adenosine diphosphate (ADP) requires a ΔG of 37.7 kJ, how many moles of ATP are synthesized per mole of O2?

25. ## English

Satire uses __to deal with serious situation? Answers are Humor,irony Logic,reason Facts,opinions Persuasion,argument Thanks I think it is Humor,Irony

26. ## chemistry

The equilibrium constant, Kp, for the following reaction is 2.74 at 1150 K. Calculate Kc for this reaction at this temperature. 2SO3(g) 2SO2(g) + O2(g)

27. ## Chemistry

Before a trip from New York to Boston, the pressure in the automobile tire is 2.1 atm at 280 K. At the end of the trip, the pressure gauge reads 1.88 atm. What is the new Celsius temperature of the air inside the tire?(Assume tires with constant volume).

28. ## MATH :DD

Mr. Keskin and his wife have a cell phone plan that charges them \$5 for 200 text messages per month for each of their phones. The Keskins are charged an additional \$0.12 for each text message over their 200-text-message limit. Their carrier has offered

29. ## physics

skateboards on a hill time speed kinetic energy and work starting from rest angel and Brittany skateboard down a hill as shown. angel rides down the steep side while britney rides down the shallow side. Angel has more mass than Britney. assume that

30. ## chemistry

Calculate the DHof for the following reaction under standard state conditions: 2 Ag2S(s) + 2 H2O(l) ---> 4 Ag(s) + 2 H2S(g) + O2(g) Given the following information: Ag2S(s) ÄHof = -32.6 kJ/mol H2O(l) Ä Hof = -285.83 kJ/mol H2S(g) ÄHof = -20.6 kJ/mol

31. ## MATH TRIGO-PLSSS ANSWER CLEARLY COZ IM VERY LOW IN

A TOWER AND A MONUMENT STAND ON A LEVEL PLANE.THE ANGLES OF DEPRESSION OF THE TOP AND BOTTOM OF THE MONUMENT VIEWED FROM THE TOP OF THE TOWER ARE 13DEGREE AND 31 DEGREE,RESPECTIVELY;THE HEIGHT OF THE TOWER IS 145 FT. FIND THE HEIGHT OF THE MONUMENT.

32. ## math

What is the start time? Start time:___ Elapsed time:3/4 hour End time:10:30 A.M. I need thee answer asap

33. ## Chemistry - Le Chatelier's Principle

Hi, I have a question regarding the following chemical equilibrium equation: 2CrO4^2- + 2H3O^+ Cr2O7^2- + 3H2O The question is: how would you manipulate the above equation to produce more Cr2O7^2- ions without adding any Chromium based compounds? I

34. ## life orientation

identify three study fields /career paths in order of preference and provide two reasons for each choice

35. ## Calculus

Find all points on the graph of the function f(x) = 2 cos x + cos^2 x at which the tangent line is horizontal. (Use n as your arbitrary integer.) smaller y-value (x,y)= larger y-value (x,y)=

36. ## Trigonometry

4cos^2x-5sinxcosx-6=0 find the x :( please

37. ## science

A gas occupying 43 mL at standard conditions is heated to 29 celsius while the pressure is reduced to 0.84091 atm. What is the new volume occupied by the gas?

38. ## math

what is the equation in point-slope form for the line parallel to y=-2x+10 that contains j(6,8)?

39. ## Ashford PHI 208

PHI 208 Week 2 - Readings Quiz 1. Tom Regan’s view of animals is that (Points : 1) They are important but not quite as important as human beings They have rights, which means that they should never be used for human purposes They may be ethically used

40. ## English

You should always document your quoted information with a properly for matted?Answers are Citation Footnote Endnotes Source List Thanks I think it is Source list

41. ## trig

a kite is flying at an angle of elevation of about 40 degrees. all 80 meters of string have been let out. ignoring the sag in the string, find the height of the kite to the nearest 10 meter

42. ## Physics

An airplane is 5,000 m above an observer and 2.1 km to the west of them and 1.5 km to the north of you. Determine the angle to the plane in the x – y axis and the total distance to the plane from you. Choose the x-axis east, y axis north, and z axis up.

43. ## physics

If a wire has a resistance of 132ohms a length of 110cm and an area of cross- sectional of 0.00415cm square find the resistivity of the material of which it is made

44. ## Math 12

Melinda and Milan both need a place to live. Melinda has decided to rent a house for \$1200 per month. Milan has decided to buy a house for \$210000 which he will finance with a 18 year mortgage at 3.9%, compounded semi-annually. Milan must make a down

45. ## chemistry

Calculate the DHof for the following reaction under standard state conditions: 2 Ag2S(s) + 2 H2O(l) ---> 4 Ag(s) + 2 H2S(g) + O2(g) Given the following information: Ag2S(s) ÄHof = -32.6 kJ/mol H2O(l) Ä Hof = -285.83 kJ/mol H2S(g) ÄHof = -20.6 kJ/mol

46. ## Math

A company replaces their cars every 6 years. A car is worth \$13520 after 2 years. The company uses a depreciation rate of 35% a year. a) How much will the car be worth when the company replaces it? b) How much did the car cost when it was purchased?

47. ## Physics

A 0.60 kg ladle sliding on a horizontal frictionless surface is attached to one end of a horizontal springPhy(k = 430 N/m) whose other end is fixed. The ladle has a kinetic energy of 8.6 J as it passes through its equilibrium position (the point at which

48. ## Chemistry Urgent

Assuming that kerosene is C11H24, calculate the standard enthalpy change when 1 mole of kerosene burns completely in oxygen, using the data below: ΔH of formation of C11H24(l) = -327 kJ mol ΔH of formation of CO2(g)= -394 kJ mol ΔH of formation of H2O

49. ## SCIENCE CAN ANYONE HELP

A.) Show how vertical multiplication can be used to do a charge balance if Zn2+ combines with Cl- b.) Write the chemical formula name for the compound that would be formed I've been waiting for hours and I haven't even received any help...

50. ## Math

A clock has a minute hand10 inches long. What is the distance traveled by the tip of the minute hand in 1 day?

51. ## Chemistry

The pressure on a gas at -58 degrees Celcius is doubled, but its volume is held constant. What will the final temperature be in degrees Celsius?

52. ## math

On August 18, Sullivan Company received an invoice in the amount of \$6,700, having terms of sale of 4/15 EOM. What is the discount date?

53. ## Physics

(a) At a certain instant, a particle-like object is acted on by a force F=(2.9N)i-(1.7N)j+(5.7N)k while the object's velocity is v= -(3.2m/s)i+(4.5m/s)k. What is the instantaneous rate at which the force does work on the object? (b) At some other time, the

54. ## psychology

An experimenter wants to find out if drinking coffee makes people more alert. The amount of coffee a person drinks is the: A. hypothesis. B. dependent variable. C. independent variable. D. correlation coefficient.

55. ## Math

Hi can someone help me with this question. This is on my review. Thanks! The monthly cost C, in dollars, for international calls on a certain cellular phone plan is modeled by the function where x is the number of minutes used. (a) What is the cost if you

56. ## chemistry

A sample of hydrogen at 50◦C exerts a pressure of 0.377 atm. The gas is heated to 61◦C at constant volume. What will its new pressure be? how do i find the pressure? i don't understand!!!!!!!!!!!

57. ## science

A hydrogen atom has one proton, two neutrons, and no electrons. Is this atom an ion?

58. ## science

An atom of sodium-23 (atomic number = 11) has a positive charge of +1. Given this information, how many electrons does it have? How many protons and neutrons does this atom have?

59. ## Hillsdale

difference in resultant vs. equilibrant force

60. ## math

Ace Formalwear buys tuxedos from a supplier and has an invoice amount of \$27,700. The terms of the sale are 3/20, n/30. If Ace sends a partial payment of \$7,400 on the discount date, what is the net amount still due?

61. ## Trigonometry

2sinx-cosx=3/sqrt. of 2

62. ## Chemistry Urgent

Calculate the DHof for the following reaction under standard state conditions: 2 Ag2S(s) + 2 H2O(l) ---> 4 Ag(s) + 2 H2S(g) + O2(g) Given the following information: Ag2S(s) ÄHof = -32.6 kJ/mol H2O(l) Ä Hof = -285.83 kJ/mol H2S(g) ÄHof = -20.6 kJ/mol

63. ## Math

Melanie can paint a 100 square foot wall in 4 hours. James can paint the same area in 3 hours. If they both paint nonstop for 6 hours, about how many square feet can Melanie and James paint together?

64. ## Maths

Lennon invest 5 600 at an interest rate of 9.5 percent per annum, compounded half yearly. Calculate the value of his investment after 3 years

65. ## Physics-Kinetic Energy

Can someone help me solve this kinetic energy problem? A 2050 kg truck is traveling east through an intersection at 2.3 m/s when it is hit simultaneously from the side and the rear. (Some people have all the luck!) One car is a 1200 kg compact traveling

66. ## chemistry

A sample of gas has a mass of 0.565g . Its volume is 120 mL at a temperature of 80∘C and a pressure of 747 mmHg . what is the molar mass

68. ## Physics

A 2050 kg truck is traveling east through an intersection at 2.3 m/s when it is hit simultaneously from the side and the rear. (Some people have all the luck!) One car is a 1200 kg compact traveling north at 4.5 m/s. The other is a 1600 kg midsize

69. ## Chemistry

what would the product be of HNO3 is heated

70. ## Science urgent

A.) Show how vertical multiplication can be used to do a charge balance if Zn2+ combines with Cl- b.) Write the chemical formula name for the compound that would be formed

71. ## algebra 1

Mrs. Wilkerson noticed that her in-laws’ birth dates have an unusual property. Her mother-in-law was born 5-31-36, and her father-in-law was born 9-25-34. Furthermore, her hus- band’s grandfather was born 7-7-14. How many birth dates in a century have

72. ## Chemistry

How would applying an external pressure on the following equilibrium affects the distribution of iodide between the polar (aqueous) and non polar (varsol) phases? I2+I^- --> I3^-

73. ## Chemistry

What is the freezing point of a solution prepared by adding 264g of copper(ii) sulfate to 4 liters of water? The freezing point constant of water is 1.86°C/m.

74. ## Math 12

Ray owns a gym and he needs equipment for a new workout class. He has two different options: 1. Lease equipment for \$1100 per month 2. Purchase new equipment for \$24000 which he will finance with a bank loan that charges an interest rate of 7.1%,

75. ## life orientation

According to the BCEA what is the maximum number of hours an employee can work in a day?

76. ## Geometry

Write an equation in slope-intercept form of the line through points S(-7,-6) and T(10,8).

77. ## Anatomy and Physiology

What should the patient with recurrent urinary tract infections be instructed? A. Avoid eating undercooked meat. B. Prepare for a kidney transplant. C. Drink plenty of water. D. Expect treatment with kidney dialysis.

78. ## Chemistry

Consider the following problem: Target: 2NOCl(g) ? N2(g)+ O2(g)+Cl2 (g) ?Hrxn= ? Steps: 1. 1/2 N2(g) + 1/2 O2(g)? NO(g) ?H= 90.3 kJ 2. NO(g) + 1/2 Cl2(g) ? NOCl(g) ?H= -38.6 kJ As you determine the ¥ÄHrxn value for the target equation above, what must be

79. ## English

What is she like? 1. She is smart. 2. She is friendly. 3. She is generous. 4. She is reserved and pretty. 5. She is tall and has long hair. 6. She is short. 7. She looks heavy and strong. ------------------ Are the answers all correct? What about #5 and 6

80. ## English

1. If school finishes early today, Kevin will ride a bike. 2. If school finishes early today, Kevin will ride his bike. (A bike or his bike? Which one is commonly used?) 3. If I miss so much school, how can I become a scholar? (What is the meaning of

81. ## math trig

two points A and Bare 80 feetapart on the same side of A towerand on a horizontal line through its foot.if angle of elevation of the top of the tower at A is 21 degree and B is 46 degree find the height of the tower.

82. ## math

Diane's Pottery Shop orders china from a supplier for \$240 including \$30 freight charges. The terms of sale are 3/10, n/30 ROG. The china arrives on 11/21 and Diane wants to take advantage of the cash discount. As the bookkeeper for Diane's how much will

83. ## math

suppose that we are standing on a bridge 30 feet above a river watching a log floating toward we. if the angle with horizontal to the front of the log is 16.7degree and angle with horizontal to the back of the log is 14degree, how long is the log?

84. ## Physics

A 2 kg block has an initial velocity of 16 m/s at the bottom of the ramp (see diagram below). The coefficient of kinetic friction between the block and the ramp is 0.1. The spring has length 3 m and has a spring constant of 100 N/m. What maximum

85. ## Math

The sum of two fractions is 1 1/2. Their difference is 5/12. What are the fractions?

86. ## Statistics

Put in Binomial Probability Formula? probability ( 2 of 22 are lost) = C(22,2) (1/200)^2 (199/200)^20

87. ## Math

Sixty people, half of whom were females, were asked if they liked yogurt. Thirty-two of the people, including two-fifths of all of the males, said that they did like yogurt. How many of the females didn't like yogurt?

88. ## Chemistry

How would you precipitate BaCrO4 from a solution of Ba(NO3)2 and K2CrO7?

89. ## Finite Math

The purchases made by customers at a convenience store are normally distributed, with a mean of \$5.50 and a standard deviation of \$3.50. What is the probability that a randomly chosen customer makes a purchase between \$2.00 and \$9.00?

90. ## statistics

Assuming that the distribution is normal for weight relative to the ideal and 99% of the male participants scored between (–53.68, 64.64), where did 95% of the values for weight relative to the ideal lie? R

three forces

92. ## math

please,please help!im doing subtraction with renaming but don't understand.I have to estimate,then find the difference and write in simplest form.I just need help with two and may be able to do the rest on my own.6 and 1/3 minus 3 and 5/6 is the first one

93. ## algebra

(5.2 x 1013) (7.1 x 10-22) write the answer in scientific notation

94. ## math

Let y=3(x-4)^2 -3 a) Show that y=3x^2 -24x +45 b) For the graph of y find both x intercepts by solving the equation 3x^2 -24x +45 =0 A) direction of opening B) x intercepts C) y intercept D) Axis of Symmetry E) Vertex F) max or min

95. ## math

An item with a trade discount of 41% has a list price of \$289.50. What is the net price?

96. ## Statistics

How do I plug this into the Binomial Probability Formula? prob(lost) = 5/1000 = 1/200 prob(not lost) = 199/200 prob( 2 of 22 are lost) = C(22,2) (1/200)^2 (199/200)^20 = .005224..

97. ## algebra

John wants to hire an editor to check his thesis paper. The editor charges a flat rate of \$50 and \$2 per page. Write a polynomial to describe the cost. Find the cost of editing 75 pages.

98. ## Statistics

List five numbers for which the sample mean is 30 and not all numbers are equal and would have a mean of 30 but all numbers are equal

99. ## algebra

. Victoria wants to plant a vegetable garden in the shape of a square. She has a space allocated in her backyard that will accommodate 175 square feet. Using the drawing below, use the FOIL method to find the polynomial that represents the area of the

100. ## Maths

A Mug can hold 3 litre of water and each glass can hold 2/9 . How many glasses are required for filling the entire 3 litre of water.

101. ## Math

What is the weight of the snow I have to shovel off our sidewalk after a 6 inch snowfall ? Our sidewalk is 150 feet long and 3 feet wide.

102. ## Math

Ms.Jackson decided to do a little shopping after school. She stopped at target to buy two new cake pans. One had a 4in diameter and the other had a 8in diameter. How much greater is the area of the larger pan?

103. ## Physics

The southwest corner of a football field is selected as the origin of a rectangular coordinate system. A football is placed on the field at (x, y) = (37.7 m, 62.2 m). How long would it take a student, walking at a speed of 1.93 m/s, directly from the

104. ## introduction to catering

which is the most important prerequisite for making your catering business successful

105. ## physical science

A horizontal force of 10 Newtons acts on a 2 kg block on a level surface.The frictional force between the block and the surface is 3 Newtons.What is the magnitude and the direction of the net force acting on the block?

106. ## physics

A 4.0-uF capacitor is charged to 600 volts. how much energy is stored in the electric field of the capacitor?

107. ## math

A lady buys goods worth Rs.200 from a shop. (shopkeeper selling the goods with zero profit) .. The lady gives him 1000 rs note. The shopkeeper gets the change from the next shop and keeps 200 for himself and returns Rs.800 to the lady. .. Later the

108. ## Math

On Monday, Casey ran 5 miles. On Tues, she ran three and three fifths miles. How much further did she run on Mon than Tues? Then, on Wednesday she ran four and one half miles. How much further did she run on Wed than on Tues? Could someone show me how I

109. ## arithmetic

if you 99 lines on a piece of paper so that no two lines are pallarel to each other and no three lines pass through the same point,how many times will they will intersect?

110. ## chemistry

7.00 grams of sugar (C12H22O11) are dissolved in water to make 1 L of solution. What is the concentration of this solution? Answer in units of M

111. ## chemistry

Consider the following problem: Target: 2NOCl (g) ¡æ N2 (g) + O2 (g) + Cl2 (g) ¥ÄHrxn= ? Steps: 1. ¨ö N2(g) + ¨ö O2(g) ¡æ NO(g) ¥ÄH= 90.3 kJ 2. NO(g) + ¨ö Cl2(g) ¡æ NOCl(g) ¥Ä H= -38.6 kJ As you determine the ¥ÄHrxn value for the target

112. ## physics

A construction worker riding in the tray of a truck traveling at 10 m/s, sees one of his friends passing and decides to jump off the truck. The magnitude of his initial speed of jumping is: (a) zero (b) Less than the truck's (c) Equal to that of the truck

113. ## Geometry

What is an equation in point-slope form for the line perpendicular to y=2x+13 that contains (8,-4)?

114. ## Math

What is an equation in slope-intercept form for y(-4,-2) and x (5,1)?

115. ## social studies

Why was Louisiana so difficult to recover after the Civil War ?

116. ## Sensor Networks

1)Consider the uniform wireless sensor network topology shown in the picture. Assume the network covers a much larger area than the part shown, extending endlessly for purposes of a middle-sensor such as sensor A. Hexagonal coverage is provided with

117. ## social studies

Why did the Bantu peoples keep moving to new areas ??

118. ## math

A company assigns a number to each member by choosing 8 digits between 4 and 8 inclusively. How many possible membership numbers are there?

119. ## help

A 2 kg block has an initial velocity of 16 m/s at the bottom of the ramp (see diagram below). The coefficient of kinetic friction between the block and the ramp is 0.1. The spring has length 3 m and has a spring constant of 100 N/m. What maximum

120. ## Physics ib

What is the way to set up an electric circuit with a filament lamp, switch, battery, ohmmeter, voltmeter and variable resistor as to have the most optimal measurement for the current and voltage?

121. ## Child Care

Please help me, I need to make a Lesson Plan on diversity, for Pre-k, I choose a story book, of children from different parts of the world, each going to and learning in school or on the outside. The goal should show differences but also its similarities.

122. ## Trigonometry

How do you evaluate: 3cos^2â - 3sin^2â ?

123. ## Math

I am thinking of a number. If I add a half, fourth, and a ninth of it together, I get a total of 62. What's my number?

124. ## MATH

F(X)=-6-1 AND G(X)=4X^2 WHAT WOULD THE SOLUTION FOR (FG) (X) BE. im stuck between -24x^2-1 or -24x^3-4x^2

125. ## Chemistry

Consider the following problem: Target: 2NOCl (g) ¡æ N2 (g) + O2 (g) + Cl2 (g) ¥ÄHrxn= ? Steps: 1. ¨ö N2(g) + ¨ö O2(g) ¡æ NO(g) ¥ÄH= 90.3 kJ 2. NO(g) + ¨ö Cl2(g) ¡æ NOCl(g) ¥Ä H= -38.6 kJ As you determine the ¥ÄHrxn value for the target

126. ## chemistry

what is the latent heat of silver metal if 55.0 grams of metal liquefies with 47.3J of heat added?

127. ## algebra

Sam needs to fill up a box with packaging material. Use the picture below to calculate the volume of the box. 2x+3 x-3 x+2

128. ## algebra

Stacy wants to build a triangular sand box for her son. Using the figure below, calculate the area of the triangular box, writing the answer as a polynomial. (Hint: A=1/2bh) x+2 7x-1 2x+6

129. ## Math

Your company determines that the number of students S in thousands in the United States from 1990 to 2003 the participate in high school athletic programs can be modeled by the equation S= .021x^5-.572x^4+3.3x^3+16.173x^2-1.674x+5267. 1. Create a tableof

130. ## maths

What 4 fractions are the same as 2/9?

131. ## Math

Solve the inequality 4 ≤ 2c +7 ≤ 21

132. ## Math

What is an equation for the line that passes through points(4,-4) and (8-4)?

133. ## integrated science

find the resultant force on a .150kg baseball if gravity is pulling down and it is hit at a 45 degree angle with 50N of force by a baseball bat.

134. ## Math

A greenhouse at Alice's nursery has 340 planters. Each planter holds 10 plants. Alice has 1,092 plants in the greenhouse. How many planters are completely empty?

135. ## Math

Solve the inequality 4 ≤ 2c +7 ≤ 21

136. ## Maths

find x y=5x+3 Find d c=5d-2 Find a v=u+at

137. ## social studies

Name three key reasons for migration ???

39% of 19

139. ## math

Solve for the base, rounding answer to hundredths if necessary: 76 is .2% of ______.

140. ## algebra

Is (x+y)2 equal to (x2+y2)? Explain why or why not using an example to support your answer.

141. ## English

1. He is spinning a basketball on his finger. 2. He is turning around a basketball on his finger 3. He is turning a basketball on his index finger. (Which ones are grammatical?)

142. ## English

1. He is pretending to try to hit a ball. 2. She is pretending to play the guitar. 3. She seems to pretend to play the guitar. 4. He has put his right fingers around his chin. 5. It seems that he tries to hit a ball. (Are they grammatical? Check them

143. ## English

Compare and contrast the elements of the Kelly-Frye and Daubert decisions. What do you think about each decision and how it pertains to the rules of evidence?

144. ## Math

At one point on a mountain road, the elevation is 1250 meters. Three kilometers up the road, the elevation is 1610 meters. What is the average change in elevation for each hundred meters on this section of the road?

145. ## math

the legs of an isosceles triangle have lengths x+1 and -x+7. the base has length 3x-3. what is the length of the base? a. 6 b. cannot be determined c. 4 d. 3

146. ## MATH

f(x)= -6x-1 and g(x)=4x^2 select the soultion for (f+g)(x) stuck not sure which answerer is correct -24x^2-1 or -24x^3-4x^2

147. ## math

y=-5x^2+10x-1

y=9(7+4)^2+9

149. ## Chemistry Urgent

Consider the following problem: Target: 2NOCl(g) ? N2(g)+ O2(g)+Cl2 (g) ?Hrxn= ? Steps: 1. 1/2 N2(g) + 1/2 O2(g)? NO(g) ?H= 90.3 kJ 2. NO(g) + 1/2 Cl2(g) ? NOCl(g) ?H= -38.6 kJ As you determine the ¥ÄHrxn value for the target equation above, what must be

150. ## science

As seen in the lab frame a rocket A is moving to the right with speed c  and rocket B is moving to the left with speed c  . The pilot of rocket B fires a laser beam. In the B-frame, the laser beam points in the x-y plane and makes and angle

asked by Relativity quest. help pls 2
151. ## PHYSICS IMPULSE MOMENTUM QUESTION

what is a scenario in which REDUCING the time of impact would be beneficial?

152. ## Maths

How to sketch graph of f(x)=x^3-7x^2+15x-9

153. ## Astronomy

Consider dropping a Professor with an estimated mass of 80 kg from a safe, large distance, onto a SMBH with a mass of 10^7MâŠ™. The Prof makes an impact at the Schwarzschild radius, whereby he converts all of the gained kinetic energy into radiation

154. ## Science

Hello. I have this question for my class. We were to mix Na2S2O3 to a a test-tube with Varsol layer on top and an Aqueous layer (of I2/KI) on the bottom. I observed a lighter colour change in both layers. How would I express that as a chemical equation?

155. ## rvs high school

Pb(NO)2(aq) +KCl(aq)-> balance reactions

156. ## math

b. What is the net price of the order?

157. ## english

I need to find an article that compares two different jobs?

158. ## math

help pleaSE factorable quadratic equation and solve for the roots: 2x^2 + 13x + 20=0

159. ## MATH

NEED SOME HELP 2x^2+5x+3=0

160. ## Math

Mr.Ferris discovered in his 2013 copy of the world records book that the worlds largest pizza measured 5.83 feet in diameter. A regular pizza measures 0.6 feet in diameter. How much greater is the area of the larger rice cake?