# bre

Popular questions and responses by bre
1. ## math

Sue is two years older than Chris. Jim is 4 years older than Sue. Their ages total 68. How old is Sue?

2. ## Chemistry

The Ksp of manganese(II) hydroxide, Mn(OH)2, is 2.00 × 10-13. Calculate the solubility of this compound in g/L.

3. ## Algebra 2

A ball is dropped from a height of 25 feet and allowed to continue to bounce until it eventually comes to a rest. Each time the ball bounces it rebounds to 45 of its previous height. After which bounce is the ball's rebound height 10.24 ft?

4. ## math 2

Every day Drake runs two laps at a park in his neighborhood. His speed, s, is inversely proportional to time, t, over the same distance. If Drake runs at a speed of 6 miles/hour, it takes him half an hour to complete two laps of the park. Which statement

5. ## stats

Find the explained variation for the paired data. The equation of the regression line for the paired data below is y-hat = 3x. Find the explained variation. x= 2 4 5 6 y= 7 11 13 20

6. ## Chemistry

Assuming there are 20 drops in 1.0 ml, how many drops are there in 2.00 gal. Remember there are 1000 ml in a liter and .946 in a qt

7. ## Trigonometry

Sketch the graph of the function (Include two full periods. Find one complete cycle. Show your work. y=-3+5cos πt/12

8. ## history

a.Which statement about lynchings in the South in the 1890s is true? 1. Lynchings decreased compared to the Reconstruction era. 2. Leaders of lynch mobs tended to come from the wealthy ruling class. 3. Lynchings and acts of violence against blacks

9. ## math

write each expression using n as your variable.then simplify fully. 1.five more than the sum of a number and ten. 2.the product of eight and seven less than a number. 3.the quotient of a number and three, increased by one. 4.ten less than the product of

10. ## language arts

Complete the analogies by selecting the pair of words whose relationship most resembles the relationship of the pair in capitol letters. SAGE:WISDOM a. author:anthology b. speaker:tirade c. acrobat:agility (I'm thinking c but I'm not sure) SCOLDING:TIRADE

11. ## calculus

A particle is moving along the curve y= 3sqrt3x+1. As the particle passes through the point (5,12), its x-coordinate increases at a rate of 3 units per second. Find the rate of change of the distance from the particle to the origin at this instant.

12. ## Math

I have 17 hundreds,2 tens,9 ones,6 tenths and 7 thousands. What number am I?

13. ## World Geography

REVIEW 1.Which of Canada’s regions has limited vegetation and freezing temperatures most of the year? A. Maritime B. Subarctic C. Tundra

14. ## World Geography

REVIEW 1.Which of the following has made American culture more accessible to the rest of the world? A. Scientific Research B. Imports C. The Internet D. Immigration

15. ## World Geography

REVIEW 1.What type of information does a physical map show? A. Natural features

16. ## World Geography

REVIEW 1.How do lines of latitude and longitude help geographers study Earth? A. These lines show geographers the direction of Earth’s rotation around the sun. B. These lines help geographers see the difference between oceans and landforms on Earth’s

17. ## history

a. Which statement about the Ku Klux Klan during Reconstruction is NOT true? 1. Southern governments never created policies that resulted in the arrest of members. 2. They attempted to stop blacks from using their right to vote. 3. Blacks and whites who

18. ## physics

the solid has a mass of 180g. what is the density of the solid?

19. ## Math

Tyron is constructing a box in the shape of a rectangular prism to store his baseball cards. It has a length of 20 centimeters, a width if 7 centimeters, and a height of 8 centimeters. What is the volume of the box?

20. ## Math

If n represents a number then write the expression for the difference of three times the number after it was increased by three and twice that number

21. ## Chem

How many liters of H2 gas can be produced at 0 ∘C and 1.00 atm (STP) from 10.0 g of Zn? Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g)

22. ## math

The radius of the sphere is 10 units. What is the approximate volume of the sphere? Use π = 3.14 and round to the nearest whole cubic units

23. ## chemistry

PLEASEEEE HELP Write the balanced equation for the reaction between zinc and acetic acid. The equation has been written you just have to balance. ___Zn + ___HC2H3O2 → ___Zn(CH3COO)2 + ___H2

24. ## College Algebra

A yo-yo factory has fixed operating costs of \$450,000 per year. In addition to the fixed costs, the cost to produce one yo-yo is \$1.10. The yo-yo company sells the yo-yos to a distributor for \$5.50 each. How many yo-yos must be sold in a year to earn a

25. ## math

Francine and Cheryl received equal scores on a test made up of multiple choice questions and an essay. Francine got 34 multiple choice questions correct and received 14 points for her essay. Cheryl got 30 multiple choice questions correct and received 22

26. ## Calculus

You are driving at 20 m/s when you notice a tree blocking the road, 30 meters ahead of you. It takes you half a second to react before slamming on the brakes. Your car decelerates at a constant 10 m/s2. How far does your car travel before stopping? Will

27. ## geomtry

1/5 (a+10)=-3

28. ## algebra

Identify the solution of the system of equations, if any. -4x-2y+=4 8y+16x-16

29. ## Principles of Public Speaking: Lesson 8

nonverbal communication includes:

30. ## physics

The blades of a ceiling fan have a radius of 0.340m and are rotating about a fixed axis with an intial angular velocity of +1.25rad/s2. When the switch on the fan is turned to a higher speed, the blades acire an angular acceleration of +2.55rad/s2. After

31. ## math

Find the measure of the largest acute angle in a 5-12-13 triangle.

32. ## Chemistry

Heat energy is added to a 325 g block of nickel, and the temperature increases from 23 degrees celsius to 51 degrees celsius. If the same amount of heat was added to the same mass of water at the same temperature, what would the water's final temperature

33. ## World Geography

REVIEW 1.Which of the following is an abundant natural resource found in Canada? A. Gold B. Timber C. Soybeans

34. ## World Geography

REVIEW 1.The forests of the Pacific Northwest are just one of the many different ______________ in the United States where many people work in the same industry. A. elevation regions B. political regions C. climate regions

35. ## World Geography

REVIEW 1.What natural resource most attracted European traders to Canada? A. Timber

36. ## World Geography

REVIEW 1.Which of the following was one cause of the Civil War in the United States? A. The South wanted new states to allow slavery and the North did not. B. The North wanted new states to allow slavery and the South did not. C. The North opposed signing

37. ## World Geography

REVIEW 1.Canada currently ranks first in the world in which category? A. Total number of Internet users B. Percentage of college and university graduates

38. ## World Geography

REVIEW 1.Demographers are scientists who study A. weather and climate. B. pollution.

39. ## World Geography

REVIEW 1.An area in which a single culture or cultural trait is dominant is called a ____________. A. culture B. cultural landscape

40. ## World Geography

REVIWE 1.Using up resources is one of the negative effects of A. the birth rate. B. the death rate.

41. ## World Geography

REVIEW Which ecosystem usually supports thick forests of deciduous trees? A. Tropical forest B. Temperate forest C. Savanna

42. ## Math

Triangle Lmn is similar to triangle xyz. Triangle LMN has a side of 5 and 3. The scale factor of triangle Lmn to triangle xyz is 2:5. What is triangle xyz's length? Helppppp Meeeeeeeeeee!!!

43. ## bio check my answer plz???

Ideally, sustainable development should ___________. A)put the protection of the environment ahead of human needs B)provide for human needs at the expense of the environment C)use more natural resources to make goods to meet human needs D)preserve

44. ## math

20. Miguel is driving his motorboat across a river. The speed of the boat in still water is 11 mi/h. The river flows directly south at 2 mi/h. If Miguel heads directly west, what are the boat’s resultant speed and direction?

45. ## Chemistry

How would you separate a mixture of potassium chloride from copper metal?

46. ## History

What rhetorical devices were used in Seom on the mount

47. ## math

Solve by the substitution method. What is the solution of the system? 3x+9y=48 -6x+y=56

48. ## language arts

Complete the analogies by selecting the pair of words whose relationship most resembles the relationship of the pair in capitol letters. AFFABILITY:SMILE a. pain:grimace b. resilience:recovery c. turbulence:pseudonym d. abrasion:bruise (I think it is "a"

49. ## soc. stud.

how could you use the Sons of Liberty today to have your voice heard?

50. ## geometry

if bc = 2x-3 and ac = 2x+10, find the length of ab

51. ## math

i need to unscramble these math words icarlafto untoegrnc enitmelgen

52. ## physics

If a metal wire carries a current of 130 mA, how long does it take for 3.50×10 20 electrons to pass a given cross-sectional area anywhere along the wire? The magnitude of the charge on an electron is 1.6 × 10 −19 C. Answer in units of s.

53. ## A/P

The number of electrons in the outer shell of K+. I think it has 0 electrons in the outer shell since it lose some. Am I correct?

54. ## cemistry

what information is provided by the atomic mass?

55. ## english

What is mixed word order?

A violin string has a length of 0.350 m and is tuned to concert G, with f = 392 Hz. Where must the violinist place her finger to play concert A, with f = 430 Hz? If this position is to remain correct to half the width of a finger (that is, to within 0.600

A violin string has a length of 0.350 m and is tuned to concert G, with f = 392 Hz. Where must the violinist place her finger to play concert A, with f = 430 Hz? If this position is to remain correct to half the width of a finger (that is, to within 0.600

58. ## Undamped, forced oscillation

Undamped, forced oscillation?!?!? I have this question and can't seem to get the right answer. Damping is negligible for a 0.130 kg object hanging from a light 6.30 N/m spring. A sinusoidal force with an amplitude of 1.70 N drives the system. At what

59. ## Biochemistry

How is it that cortisol stimulates glycogen synthesis and gluconeogenesis? Isn't that contradictory?

60. ## spanish

En la 11. ___________ te llamé. De la oscuridad me llamaste. Reconocí tu 12. ___________. Reconociste la mia. “Vente para acá,” 13. ___________. Tape 4, Side B ExaminationRespondiste: “¿Dónde estás, papá? No te 14. ___________ .” “ 15.

61. ## algebra

In Utah, a license plate consists of 3 digits followed by 3 letters. The letters I, O, and Q are not used, and each digit or letter may be used more than once. How many different license plates are possible?

62. ## algebra

the bill(parts and labor) for the repair of a car was \$458. the cost of parts was \$339. the cost of labor was \$34 per hour. write and solve an equation to find the nuber of hours of labor. make sure you show your work.

63. ## chemistry

A solution is made by mixing exactly 500 mL of 0.156 M NaOH with exactly 500 mL of 0.100 M CH3COOH. Calculate the equilibrium concentration of the species below. Ka of CH3COOH is 1.8 × 10−5 [H+] × 10 M Enter your answer in scientific notation. [OH−]

64. ## math

is it likely or unlikely 0.25

65. ## Science until 7 I Need help

An organisms genotype is It physical appearance It combination of alleles The mutation it inherits The crossing over that occurs during meiosis.

66. ## Trigonometry

Sketch the graph of the function (Include two full periods. Find one complete cycle. Show your work. y=sin4x

67. ## Trigonometry

Sketch the graph of the function (Include two full periods. Find one complete cycle. y=10cos πx/6

68. ## math

if there are 24 students and 5 less girls than boys , how many girls are in the class. I don't think there is a solution to this.

69. ## Math

A lawn care company charges a homeowner \$1625 a year to maintain the lawn that is 65' x 50' what is the maintenance fee per square foot

70. ## math

David is a car salesman. He earns a salary of \$750 a month, plus a commission of \$300 per car that he sells. David needs to earn a minimum of \$3,500 per month. Write an inequality for the number of sales he needs to make to earn his minimum. Let c

71. ## History

how has the tension between traditional lifestyles and western influences impacted African cultures?

73. ## Chemistry

Calculate the number of atoms in 2.58 mol antimony. Its an example problem, I need help!

74. ## Math

What is 225-256dto the 2nd power =?

75. ## SP180.1.2 Principles of Public Speaking: Lesson 8

SP180.1.2 Principles of Public Speaking: Lesson 8

An experiment was conducted to determine the abrasion resistance of a new type of automobile paint. Twelve different strips of metal were painted with the new paint. The abrasion resistance of each piece was then tested on a machine. In the sample, the

77. ## physics

if u have swam one lap in a swimming pool, that means from one end to the other and back. In 3.5 h, a swimmer makes exactly 60 laps in the pool, that is 40 m long. Determine the distance the swimmer traveled, the total displacement of the swimmer, the

78. ## math

what is 2x+y=-7 in slope intercept form?

79. ## Math

You bake brownies in a 9-by15-inch pan. If you cut the brownies into servings 3 inch by 3 inch., how many squares will I have?

80. ## math

2 csc x - 3 = - 5

81. ## World Geography

REVIEW 1.In what ways did immigrants contribute to American society in the early 1900s? A. They increased the defensive power of the United States. B. They worked in factories, built railroads, and opened businesses. C. The took political power in most

82. ## World Geography

REVIEW 1.Where is the majority of Canada’s oil found? A. Along the Atlantic Coast B. Along the border with the United States C. In western Canada

83. ## World Geography

REVIEW 1.Where is Canada’s population density highest? A. In the cities of Northern Canada B. In cities in central Canada

84. ## World Geography

REVIEW 1.Which of the following statements about the natural resources of the United States is most accurate? A. The many agricultural resources of the United States have made up for its lack of other resources.

85. ## World Geography

REVIEW 1.____________ spread cultural traits because they bring cultural traditions with them to their new homeland. A. Traders B. Explorers

86. ## math

The point (5, -7) is dilated by a scale factor of 4 about the origin. Find the location of the new point. Show your work.

87. ## geometry

The scale factor is 5/4. Find the area of the pre-image if the area of the image is 150 in2.Show your work.

88. ## healh

Posture, ________, is maintained as a result of muscle contraction. A. Such as singing and painting B. Such as sitting and standing C. Such as jumping and skipping D. All of the above

89. ## bio

Relate how the arrangement of electrons determines an element’s reactivity

90. ## Bio

Relate how bonding leads to the formation of molecules and compounds.

91. ## geometry

Find the measure of each interior angle using the given information quadrilateral RSTU with m

92. ## geometry

When is the perpendicular bisector of a side of a regular n-gon also an angle bisector?

93. ## soc. stud.

how could you use effigies today to have your voice heard?

94. ## math

i am an odd three digit number if you round me to the ten o become 500 the sum of my digits 8 what numger am i

95. ## math

i need to unscrmble th word enitmelgens its som math term HHHHEEEELLLLPPP!!!!!!!!!!!!!!!!! please:)

96. ## physics

In this problem you will determine the average velocity of a moving object from the graph of its position as a function of time . A traveling object might move at different speeds and in different directions during an interval of time, but if we ask at

97. ## Physics--diffraction

Suppose you have measured the diffraction pattern of a grating with d = 0.09 mm and have found that the spots were separated by s = 1 cm. Now you want to determine d for an unknown grating. With the unknown grating, the spots are separated by s = 3.1 cm.

98. ## genetics/genome sequencing

I pasted the sequences of human and chimps into Transeq and this is what I got: >exo18_MYH16_human_1 EQLNKLMTTLHSRTPFCPLYYPQ*V*AIG >exo18_MYH16_ximpanze_1 EQLNKLMTTLHSTAPHFVRCIIPNEFKQSX I know that the * signifies gaps. I need help with this question, as I

99. ## math

how can you use the product of 108 and 4 to find the product of 324 and 4?