# Teresa

Popular questions and responses by Teresa
1. ## chemistry

Which of the following quantum numbers describes the shape of an orbital? A) principle quantum number (n) B) magnetic quantum number (ml) C) spin quantum number (ms) D) Schrodinger quantum number (S) E) (azithmal) angular momentum quantum number (l)

2. ## algebra

Joe's electric made 17 customer calls last wk and 23 calls this week. How many calls must be made next week in order to maintain an average of at least 21 calls per week for the three week period? At least blank calls must be made to maintain an average of

3. ## Chemistry

Iron has density 7.87 g/cm3. If 52.3 g of iron is added to 74.5 mL of water in a graduated cylinder, to what volume reading will the water level in the cylinder rise? mL

4. ## ALGEBRA

Find the choice below which gives a first step in solving the given system of equations by the addition method 6x - 5y = 12 x + y = 3

5. ## science

There are three sources of resistance in a parallel circuit. Two of them are rated at 20 ohms, the other at 10 ohms. What is the circuits total resistance?

6. ## geometry

What is the probability of 2 randomly chosen angles being congruent in a general triangle?

7. ## precal

Find all solutions of the equation in the interval , 02π . =2sin2x−2cosx Write your answer in radians in terms of π . If there is more than one solution, separate them with commas.

8. ## math

find the height in feet of a ball after 6 seconds in the air. after one second the ball is 148 feet in the air; after 2 seconds it is 272 feet in the air

9. ## math

this investment require table factors for periods beyond the table. create the new table factor AND the present value for \$100,000 (compound amount) for 50 years at a nominal rate of 5 percent with interest compounded annually thanks

10. ## trig

What is the period, amplitude and phase shift for: y=2sin(3x-pi)

11. ## math

A chef has a 2 3/8 pound salmon filet. He slices the filet into 4 oz servings. How many pounds is each serving? How many 4-oz servings can the chef create from the filet. How many ounces of salmon are left over?

12. ## Mathematics

A ship sails 50 km on a bearing of 70 degrees. How far North is it from its starting position.

13. ## math

The mass of a box with 6 tennis balls is 2 kg 40 g. The same box with 10 tennis balls is 3 kg 160 g. What is the mass of the empty box?

14. ## Chemistry

How many atoms of nitrogen are in 3.00g of N2O5?

15. ## Business Math and Statistics

You deposit \$1,000 for 4 years at an interest rate of 2.0%. If the interest is compounded annually, how much money do you have after 4 years?

16. ## Chemistry

25.00 mL of heavy water (D2O where D is a hydrogen with a neutron in its nucleus) at 20 degrees C was pipetted into a 37.234 g beaker. The final mass of the beaker was 64.859 9 a- what is the density of heavy water at 20 degrees C b-The density of normal

17. ## math

from least to greatest, the perfect square factors of 3150 other than 1 are?

18. ## math

find the area of a squad that has sides of length 96 inches

19. ## math

ABCD is a rectangle of perimeter 48cm. AB=6 cm and CD=DE. What is the length of ABCD?

20. ## Science

How many traits are involved in a monohybrid cross? How many alleles are involved? What prevents the expression of a recessive allele? When gametes form, what happens to the alleles for each trait?

21. ## Chemistry

A sample of nitrogen gas is collected overwater at a temperature of 23◦C. What is the pressure of the nitrogen gas if the atmospheric pressure is 744 mmHg? Answer in units of mmHg. Not sure of formula for this

22. ## Chemistry

Merchants usually sell small nuts, washers, and bolts by weight (like jelly beans!) rather than by individually counting the items. Suppose a particular type of washer weighs 0.128 g on the average. What would 130. such washers weigh?

23. ## Early Childhood

Mrs. Bates watched David work a puzzle that he had chosen from the ones she put on the table. She listened and commented when David made guesses at the correct location for the pieces. This is an example of a/an __________ activity. A. structured B.

24. ## algebra

A certain kind of animal weighs about 77 pounds at birth and gains 2 pounds per day for the first few weeks. Determine those days for which the animal's weight is more than 129 pounds. The animal's weight is more than 129 pounds when the animal is more

25. ## math

THE DISTANCE BETWEEN EXIT 12 AND EXIT 13 IS 2.7 MILES. THE DISTANCE BETWEEN EXIT 13 AND EXIT 14 IS .9 MILES FARTHER THAN THE DISTANCE BETWEEN EXIT 12 AND 13. THE DISTANCE BETWEEN EXIT 13 AND 15 IS 6.8 MILES FARTHER THAN THE DISTANCE BETWEEN 12 AND 14. THE

26. ## mixed numerals

Yesterday, Joe's Snack Shack went through 8 bottles of ketchup. If they used 1/5 as much mustard as ketchup, how many bottles of mustard did they go through?

27. ## math

At Laurita's bakery 3/5 of the baked goods are pies and the rest are cakes. 1/3 of the pies are coconut. 1/6 of the cakes are angel-food. What fraction of all of the baked goods at Laurita's Bakery are coconut pies? What fraction of all of the baked goods

28. ## math

Carla spends 6/4 hours exercising every day for 12 days. She spends 1/2 of exercise time every day lifting weights. How much time does Carla spend lifting weights during the 12 days?

29. ## math

Lily plants 80 seeds in her garden. Half of them are carrots. The rest are pumpkins and radishes. There are 6 more pumpkin seed than radish seeds. a. How many radish seeds are there? b. How many carrot and radish seeds does Lily plant?

30. ## Chemistry

At a deep-sea station 200.m below the surface of the Pacific Ocean, workers live in a highlypressurized environment. How much gas at STP must be compressed on the surface to fill the underwater environment with 1 × 107 L of gas at 16 atm? Assume that

31. ## Chemistry

According to his prelaboratory theoretical yield calculations, a student's experiment should have produced 1.41 g of magnesium oxide. When he weighed his product after reaction, only 1.33 g of magnesium oxide was present. What is the student's percent

32. ## chemistry

find the mass of water(H2O) needed to react with 150 grams of potassium(K)

33. ## English

To get in shape for a marathon, Shelby started running around the block a few times each morning.

34. ## math

Julian and Stacey needed 10 liters of water to fill a tank. Stacey filled the tank with 3 11/12 liters of water. Julian poured 1 2/5 liters less than Stacey into the tank. How much more water is still needed to fill the tank?

35. ## math

Donald is hiring employees for his new small business. He expects to produce 6 units per employee, and he expects demand to be at least 36 units per day. He plans to pay each employee a yearly salary of \$50,000 and has a budget of \$400,000 per year to pay

36. ## math

a music store gives every 20th customer a \$5 gift card. Every 50th customer gets a \$10 gift card. which customer will be the first to receive both types of gift cards?

37. ## math

at a parade, there are "m" women and 3 times as many men as women. There are 6,352 fewer children than men. Find the number of men and the number of children respectively in terms of m. If m = 7,145, how many peole are at the parade?

38. ## math

justin spends 7/9 of his homework time on math and social studies. He spends 4/7 of this time on math. What fraction of the total time does he spend on social studies?

39. ## math

James is painting his 10 by 8 foot bedroom wall that contains a 2 by 3 foot window. How many square feet of wall does he need to paint

40. ## math

michelle has some stamps. Her sister has half as many stamps as does. They have 1080 stamps in all. Home many stamps does Michelle have

41. ## Algebra

A bird leaves his nest and travels 20 miles per hour downward for x hours. On the return trip the bird travels 4 miles per hour slower and has six miles left after x hours. What is the distance of the entire trip? How long does the entire trip take

42. ## math

there are 8 people in a committee. each time they meet they shake hands with each other so that each person shakes everyones hand once each time they meet how many handshakes are there

43. ## algebra

How do I work this problem? m=-3, (4,5)

44. ## math

Grandpa Mick opened a pint of ice crew. He gave his youngest grandchild 1/5 of the ice cream and his middle grandchild 1/4 of the remaining ice cream. Then, he gave his oldest grandchild 1/3 of the ice cream that was left after serving the others. Who got

45. ## Amercan Literature

The yellow cane Alexandra finds at maries house is a symbol of

46. ## math

Riley told his mom that multiplying whole numbers by multiples of 10 was easy because you just count zeros in the factors and put them in the product... 7,000 x 600 = 4,200,000 Riley's mom said this strategy will not always works? Why not? Give example

48. ## Chemistry

'calculate the mass in amu of 2.879 1023 xenon atoms'

49. ## Math

Find the z-scores that bound the middle 55% of the standard normal distribution ____ small value _____ larger value

50. ## Math

Find the z-scores that bound the middle 55% of the standard normal distribution ____ small value _____ larger value

51. ## math

how to solve this problem ln(x-4)=-3

52. ## math

express 16^21/2^7 - 5^12 in simplest fotm

53. ## Physics help

At 265 K, the pressure of 0.0454 mol of an ideal gas is 1.42×105 Pa. What volume does the gas occupy?

54. ## physics

A thin spherical shell of mass 4.00 kg and diameter 0.200 m is filled with helium (density ρ = 0.180 kg/m3). It is then released from rest on the bottom of a pool of water that is 4.00 m deep. (a) Neglecting frictional effects, show that the shell rises

55. ## AP Calculus AB

A river boat company offers a 4th of july trip to an organization with understanding that there will be at least 400 passengers. each ticket is \$12, and company agrees to refund \$.20 to every passenger for each 10 passengers in excess of 400. find the

56. ## chemistry

Given the following reaction and enthalpy change, calculate the amount of heat for converting 100.4g of liquid water (18.02g/mole) to a vapor? delta H= +44kJ

Assuming the required RoR for an Investment is 12% and using an inflation rate of 3%, would you recommend the investment?Investment at year 0 = \$8.5 million, Net income at years 1-5 is \$1.5 million for each year.

58. ## geometry

Triangle ABC has vertices A(-3,2) B(4.5) AND C(4,-1) Fin out wether the triangle is isosceles?

59. ## finance

Calculate the after-tax cost of preferred stock for Bozeman-Western Airlines, Inc., which is planning to sell \$10 million of \$6.50 cumulative preferred stock to the public at a price of \$50 a share. Issuance costs are estimated to be \$2 a share. The

60. ## finance

When performing a capital budgeting analysis, interest expense included in the cash flows should be based on the current interest cost and not the historical cost of interest. Comment.

61. ## Math

if you roll a pair of fair six-sided number cubes, what is the probability of rolling two numbers whose sum is 2?

62. ## english

explanation and description no child left behind

63. ## microbiology

Which may be or is an RNA molecule? A) AGCCTAC B) GGGCCCA C) GCCCUUA D) AGCCTAC AND GGGCCCA E) GGGCCCA AND GCCCUUA

64. ## statistics

In a population of exam scores, a score of X = 48 corresponds to z = +1.00 and a score of X = 36 corresponds to z = -0.50. Find the mean and standard deviation of the population.

65. ## COMM 215

1. The following word group is a FRAGMENT: That movie, one of my favorites.

66. ## Language

Seth has passed everyone in the race. What part of speech is "has passed"?

67. ## More Acctg

The supplies account had a beginning balance of \$1245 and was debited for \$2860 for supplies purchased during the year. Journalize the adjusting entry required at the end of the year assuming the amount of supplies on hand is \$1349. I added the \$2860 for

68. ## math

word scramble help, enitmelgens, reaoprddrie, gteernartha, ouoetrrsaq, girlteahng

69. ## Pre algebra

is 90.23 an irrational number?

70. ## History

Why were the members of the Third Estate dissatisfied with their way of life under the Old Regime?

71. ## Pre-Algebra

A(2,5), B(3,1)

72. ## Math

-5g - 6 for g = -2 A 4 B 16 C 10 D -13

73. ## math

A bus driver filled up 7/8 of her fuel tank for a trip. She used 6/7 of the fuel by the end of the trip. The capacity of her tank is 70 gallons. How much fuel did she use for the trip?

74. ## math

serio walked to and from school on 3/5 of the days in one month. He got a ride to school on 7/8 of the remaining days. On the remaining school day that month he stayed home with a cold. How many school days were there that month?

15(p-4+2)

76. ## math

The area of a rectangle is 3/5 square meter. The width is 2/5 meter. What is the length of the rectangle? How many times greater is the length that the width?

77. ## calculus

A water trough is 8m long and its cross-section is an isosceles triangle which is 60cm wide at the top, and the height is 60cm. The trough is not full. Give an expression for V, the volume of water in the trough in cm^3, when the depth of the water is d

78. ## math

at a supermarket, pineapple juice sells at \$1 per pint (16 oz). Greg wants to buy eighteen 40-ounce cans of pineapple juice from the supermarket. How much does he has to pay altogether.

79. ## math

(4-5y)-2(3.5y-8)

80. ## math

in a jewelry store, rings make up 5/9 of the inventory. Earrings make up 4/15 of the inventory. How many times greater is the ring inventory than the earring inventory?

81. ## math

4/9 divided by 2/3 divided by 5/6

82. ## math

you have 120 pieces of fabric to make a blanket. each piece of fabric is a square with a side length of 6 inches. you use as many pieces of fabric as possible to screat a square blanket. What is the area of the blanket? How many pieces of fabric are left

83. ## math

what is the lowest common multiple of 32 and 40

84. ## math

a music store gives every 20th customer a \$5 gift card. Every 50th customer gets a \$10 gift card. which customer will be the first to receive both types of gift cards?

85. ## math

what is the lowest common multiple of 32 and 40

86. ## math

you are making identical gift bags using 24 candles and 36 bottles of lotion. What is the greatest number of gift bags you can make with no items left over.

87. ## math

(7^2-9)x(6+4)^2

88. ## science

describe the relationship among energy absorption, heat energy, and temperature

6 - 17 - 4

90. ## math

-16 - (-12) + (-8)

91. ## math

The height of a picture is 4.3 feet when rounded to the nearest tenth of a foot. What is the shortest possible height of the picture. Give answer to 3 decimal places

92. ## math

six bags of baseballs weigh 0.5 kilograms each. The balls are then packed into 10 boxes. What is the total mass of the six bags of baseballs? What is the mass of each box? If each box costs \$1.80, how much did the boxes cost altogether?

93. ## math

5/8 divided by y/9 = 1 1/8

94. ## math

Amber has a piece of licorie that is 10 feet long. She cuts it into three pieces for her friends. The 1st piece is 4.25 feet longer than the second piece. The 3rd piece is 2.24 feet longer than the second. How long is the 3rd piece?

95. ## math

Zach's rope is 15 feet long. He cuts it into three pieces. 1st piece is 3.57 ft longer than the 2nd piece. 3rd piece is 2.97 feet longer than the 2nd piece. How long is third piece?

96. ## math

ned folded a set of origami figures. Of this set, 5/8 are cranes and 1/6 of the remainder are frogs. The rest are grasshoppers. What fraction of the origami figures are grasshoppers?

97. ## math

Ben sells 7/12 of the pottery he made. Of the remaking pottery, 3/5 are vases and the rest are bowls. What fraction of all the pottery is the unsold bowls?

98. ## math

Mrs. Kong uses 1/3 of a stick of butter in a pie. She uses 5/8 of the remaining butter in a cake. What fraction of the stick of butter is left

99. ## math

maggie has 20 ribbons. Of them, 2/5 are polka dotted ribbons. How many ribs are not polka-dotted?