# Questions Asked onMay 25, 2016

1. ## History

Which answer best describes Andrew Jackson's view of a national bank? A)Jackson felt that a national bank should be more tightly regulated by the government. B)Jackson felt that a national bank was well within the rights of the federal government to

2. ## school

What effect does Sal’s visit with Margaret Cadaver have on her?

3. ## Algebra

Since the opening night, attendance at Play A has increased steadily, while attendance at Play B first rose and then fell. Equations modeling the daily attendance y at each play are shown below, where x is the number of days since the opening night. On

4. ## algerba

What is the value of the discriminant, b2 − 4ac, for the quadratic equation 0 = −2x2 − 3x + 8, and what does it mean about the number of real solutions the equation has? What are the solutions to the quadratic equation 4(x + 2)2 = 36 Mischa wrote the

5. ## math

fatima bought 1200 eggs at rs.16 a dozen. At what price per hundred must she sell the eggs so as to earn a profit of 15%. plz its urgent very very urgent try to solve soon.....

6. ## Health

The straightening movement of muscles at a joint is referred to as Flexion Endurance Extension*** Stretching

7. ## math help plsss plsss

Decide which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring. −b b^2 − 4ac 2a Use the part of the quadratic formula that you chose above and find its value, given the following quadratic equation: 4x^2

8. ## English

Hey I need my answers checked to see if they're right. These answers are based off of the poem Sonnet 57 by William Shakespeare. 1. This poem is like many other Renaissance poems in its A. irrational purpose. B. Emphasis on love. C. rough humor. D. mood of

9. ## Math

Of 43 plays attributed to a playwright 16 are comedies, 15 are tragedies, 12 are histories. If one play is selected random find the odds against selecting a history?

10. ## Health

The term_____ refers to the bending movement around a joint. ~ Flexion ~ Endurance ~ Extension ~ Stretching

11. ## English Help Asap!!

Selection 1 There is good news and bad news about grizzly bears in the American West. The good news? Their numbers have been increasing in recent years. In 1975, grizzlies made the threatened-species list under the federal Endangered Species Act. The bad

12. ## Math

Austin is building a rabbit pen with 25 feet of fence. What are the dimensions of the rectangle hr should build to have the greatest possible area

13. ## algebra

A survey of 70 Customers was taken at a bookstore regarding the types of books purchased. The survey found that 42 customers purchased mysteries, 34 purchased science fiction, 24 purchased romance novels, 18 purchased mysteries and science fiction, 12

14. ## Algebra II

The sum of the reciprocals of two consecutive positive integers is 17/12. Write an equation that can be used to find the two integers. What are the integers?

15. ## Probability

Single die is rolled one time, find the probability of rolling a number greater than 3 or less than 2?

16. ## Health

____ is the sum of body cell mass and extracellular mass fat lipid count Cellular total lean body mass***

17. ## MATH

Find the largest possible rectangular area you can enclose assuming you have 128 meters of fencing.

18. ## Language Arts Help!!

10 MS. SMITH: {glossing over his misbehavior and adopting a serious tone as she hands Jason a piece of paper} Yes, ok. So, tell me your plan for the project. Have you consulted this project list yet? You really need to quit putting this off. You're the

19. ## math

you deposit \$200 in an account earning 3.5% simple interest. How long will it take for the balance of the account to \$221?

20. ## @BK, aka Connexus Cheater

Your posts have been deleted and you've been banned from posting on Jiskha.

21. ## Physical Science

How much heat is necessary to change 305g of ice at -11c to water at 20c

22. ## Algebra

The width of a rectangle is 10 inches less then it's length if the perimeter of the rectangle is 36 inches what is its Width in inches?

23. ## la language arts

Joe magarac, Man of steel 8. In section 1, what does the author mean when he says joe magarac is a folk hero? A. Joe was a real man who spent his whole life in the steel mills of Pittsburgh. B. Joe was a mysterious figure who vanished without a trace.* C.

24. ## Math

A committee of 5 people is to be formed from a group of 7 women and 4 men. How many possible committees can be formed if: the committee then must chose a president and a vice president, how many ways could these two positions be chosen? why is it

25. ## Math

P is a point 2m above the ground and 15m away from a tower. The angle of elevation of the tower from P is 65 degrees. Calculate the height of the tower.

26. ## History

1) Which explains why the Compromise of 1850 intensified the argument about slavery? A)People for and against slavery migrated to Western states to influence laws. B)Free states in the West added more antislavery votes to Congress. C)The equal division of

27. ## math

If the first term in an arithmetic sequence is 15 and the tenth term is 69. What is the fourth term in the sequence?

28. ## Health

There are many different ways to physically treat a medical condition rather than using prescribed drugs, select the method that apply below Answer Are Psychological Therapy*** Physical Therapy Cardiac Rehabilitation Massage Therapy*** there are three

29. ## Chemistry

what happens in a condensation reaction head-to-tail joining of monomers side-by-side joining of monomers cross-linking of monomers*** substitution of halogen

30. ## Spanish

The largest indigenous group in ecuador is ~Caranquí ~Pichincha ~Otaveleño ~Quechua

31. ## Health

the term ____ refers to the bending moment around a joint Flexion*** endurance extension stretching

32. ## Probability

Probability of selecting a red number given that the circle is yellow?

33. ## Statistics

A certain disease occurs in 4% of the population. A blood test for this disease shows a false positive 12% of the time. That means a test will show positive given that the person does not have the disease. What is the probability that a person tests

34. ## KOREA

LIST THE ALPHABETS IN KOREAN LANGUAGE

35. ## English

How does Holmes solve the mystery in “The Red-headed League”? A. carefully and scientifically B. playfully C. cheerlessly D. eagerly and enthusiastically A?

36. ## Math

Leo wants to paint a mural that covers a wall with an area of 1734 swuate feet. The height of the eall is 2/3 of its length.What is the length and the height of the wall?

37. ## Reaction Engineering

The irreversible elementary reaction 2A ---+ B takes place in the gas phase in an isothermal tubular (plug-Jlow) reactor. Reactant A and a diluent C are fed in equimolar ratio, and conversion of A is 80%. If the molar feed rate of A is cut in half, what is

Consider the following conjecture: the sum of two even numbers will be even. A.) give three examples supporting the conjecture. (I gave 2+2=4 4+4=8 10+10=20) B.) Prove the conjecture( this is the part I need help with)

39. ## science

If element X has 85 protons, how many electrons does it have? electrons

40. ## English

1) What is the principal part of the underlined verb in the sentence? I have never beaten my grandfather at chess. A. past B. past participle C. present D. present participle "beaten" is b past participle 2) What is the principal part of the underlined

41. ## PHYSICS

a shell of mass M moving with velocity v breaks into two fragments. one of the mass comes to rest. velocity of the second fragment is

one year ago 1. The states below were added to the Union during the decade following the War of 1812: Indiana (1816) Mississippi (1817) Illinois (1818) Alabama (1819) Maine (1820) Missouri (1821) Which statement best explains how the War of 1812

43. ## physics

A body is thrown vertically upwards at an initial velocity of 30m/s. Find the velocity after 2s and the time it takes to reach the maximum height.(TAKE g equal 10m/s2(square).

44. ## Math

3. 2x^2+6x-7x+8-3x^2+1 A. 2x^2+x+9 B. -2x^2-x-9 C. -x^2-x+9 D. x^2+9 4. What are the coefficents in the polynomial 4x^2+3x-3 A. 4,-3,-3 B. 4,3 C. 4,3,3 D. -4,-3 6. (7x^2-x-2)-(6x^3+3) A. 6x^3-+7x^2-x-5 B. -6x^3+7x^2-x+1 C. -x^3-x-5 D. x^2-x+1 7. Suppose

45. ## Pre-Calc

Find the probability for the experiment of selecting one card from a standard deck of 52 playing cards such that the card is a 10 or higher (aces are low). Is this 4/13?

46. ## math

You roll a number cube twice. Find the probability of the event. Rolling a number less than 2 and then a number more than 6 Rolling an odd number then an even number Rolling a 7 then a 5

47. ## Health

your exercise results will be better and you will be able to achieve your fitness goals if you change your routine every two to three weeks four to six weeks six months daily***

48. ## CHINESE

WHAT IS AM VERY HAPPY TODAY ABOUT EVERYTHING IN CHINESE

49. ## College Algebra

"Solve each equation. Round your answers to the nearest ten-thousandth." (These are my directions) Here is the equation: 3^n + 9 = 69 How do I solve this getting the answer asked for?

50. ## Math

What is the equation of direct variation given that y is 16 and x is 2?

51. ## physics

if magnitude of sum of two unit vectors is root2 then find the magnitude of subtraction of these unit vectors

52. ## Science

What would the mass of five grams of salt mixed with twenty grams of water be?

53. ## Math

Consider the following conjecture: the sum of two even numbers will be even. A.) Prove the conjecture

54. ## physics

A diffraction grating with 1000 slits/cm is oriented parallel to the y-axis and its center is located on the x-axis at x = -5.00 m. A source of light of wavelength 650 nm is located on the x-axis at x = -125 m. At how many locations does constructive

55. ## Chemistry

Why must not the condensed water drip into the flask?

56. ## Math

Which is equivalent to this expression -4(-3x)+5(-7) A. -12x + 35 B. 12x - 35 C. -7x + 12 D. 7x - 12 Which is equivalent to the inequality shown below? X/2 /= 7.5 B X /= -30 D X

57. ## Physics

Waves are coming towards your boat at a speed of 4 m/s, you are standing on the fish scale and notice that the reading on the scale changes up and down such that the lowest scale reading is ½ of the maximum scale reading. If the total vertical distance

58. ## English

The fifth grade class was 3/5 boys. Of those boys, 4/6 had brown hair. What fraction were boys and had brown hair?

59. ## Chemistry

aluminum hydroxide is decomposed to form aluminum oxide and water. if 2.23 moles of water are formed then how many of aluminum oxide are formed. how many grams of aluminum hydroxide must have been.decomposed?

60. ## Social Studies

Where do most people in Venezuela live. A) On farms B) in cities C) on oil rigs D) In the southern tip of the country. I think it is A.

61. ## Math

Find slope of the tangent like when x=1 and y=12

62. ## Math- Prob Stat

In a Gallop Poll, 35% 18-23 year old's stated that they believe in ghosts. Find the probability that out of 16 students aged 18-23: A. Exactly 5 said they believed in ghosts. B. Exactly 5 said they do not believe in ghosts. C.Less than 11 said they do not

Solve for x. and show your work. -3x+5 less than or equal to -22 Note:where it says "less than or equal to" its the less than or equal to sign. Please help me!

64. ## math

Use the percent of change to find the new amount. \$104 increased by 22% 120 brushes decreased by 25%

65. ## Algebra II

Taylor wants a used car, he would like for it to have a working air conditioner and less than 75,000 miles on it . Of the 200 cars ads he looked at, 60% have less than 75,000 miles. Of these low-mileage cars 65% had a working air conditioner. Of the cars

66. ## Algebra II

If one leg of a right triangle is 5 times the square root of 3 centimeters, and the hypotenuse is 2 more than the other leg, what is the length of the other leg? While it does say please show my work, I literally have NO idea how to solve this, and this is

67. ## English

What is the mood of the poem, The Husband's Message?

68. ## math

1. Original price: \$92 Discount: 15% What is the sale price? 2. Original price: \$110 Sale price: \$91.30 What is the discount? 3. Discount: 33% Sale price: \$134.00 What is the original price? 4. Cost to store: \$32 Markup: 16% What is the selling price?

69. ## Math

5+x=59 What is x

70. ## physics

a submarine fitted with a SONAR system operates at a frequency 50kHz. An enwmy submarine is now moving towards it with a speed of 450km/hr. Find the frequency of the sound received back at the SONAR from the enemy submarine. Velocity of sound in water is

71. ## math

An account earns annual simple interest. Find the balance of the account. \$250 at 4% for 1 year = \$260 \$2000 at 9% for 6 months = \$?

72. ## Physics

The string is 0.95 m long with tension 8.00 N. The total mass of the string is 12.34 g. Find the period of the oscillation.

73. ## Math

If a pulse is 20 beats in 15 second what is the pulse for 1 min.

74. ## Physics

A transverse wave traveling in a string takes 1.40 s to move 13.2 m. The mass of a 8.50 m piece of the string is 1.60 kg. What is the tension in the string?

75. ## World history answer CHECK

stars*** by my answer 1. President Ronald Reagan's economic theory which assumed if taxes were reduced, people will work more having more spending money, and the economy would grow was called "Reaganomics." Identify the economic theory which Reaganomics is

76. ## physics

Four copper wires of equal length are connected in series. Their cross-sectional areas are 0.96 cm^2, 2.02 cm^2, 2.90 cm^2, and 5.06 cm^2. A potential difference of 116 V is applied across the combination. Determine the voltage across the 2.02 cm^2 wire.

77. ## Security

What portion of the airport is designed and used for landing, take off, or surface maneuvering of aircraft? A. Control tower B. Air operations area C. Control functions area D. Exclusive area im confused between A and C

78. ## Pre-Cal

Solve the equation for the indicated variable: (ax+b)/(cx+d)=6 , Solve for X

79. ## penn foster

1. A 30 kg dog is receiving fluids at a rate of 40 mL/hour. It needs a drug added to 500 mL of fluids so that it receives 2 mg/kg each hour. The drug has a strength of 2%. What volume of drug will you add? A.15ml B.37.5ml C.12.5ml D.3ml

80. ## Pre-Cal

Find all Real solutions of the Equation: (ENter as comma sparated answers, if there are no real solutions then just leave as NRS) x^(4/3)-9x^(2/3)+14=0 x=?

81. ## math

7x + 5 8x + 9 find the value of x so that both the sum of the equations equal 180 when added together.

82. ## Chemistry

What assures that there is no charge build up in a voltaic cell as oxidation and reduction occur? one of the half cells the electrolyte solutions*** the moving electrons the salt bridge

83. ## Maths

x^3-x-2=0 correct to six decimal places by newton raphson method

84. ## math

A picture is copied onto a sheet of paper 8 inches by 10 inches. A 2-inch margin is left all around the picture. Find the length, width, and area of the picture. Length = 10 inches Width = 8 inches Area = 80 inches squared am i right?

85. ## math

when 2 is added to both the numerator and denominator, of a positive fraction, the fraction thus obtained is 3/5. If the denominator is 6 more than the numerator,what is the original value of the denominator?

86. ## Math

148 percent out of 250%

87. ## Math

Shoes are on sale for 15% off with an addition of another sale adding 25%. The shoes start at \$80.00.

88. ## Math

1.what payment methods borrow money from a financial institution 2.what payment methods does not borrow money from a financial institution

89. ## math

A triangle has side lengths of 6 inches, 10 inches, 8 inches. How many triangles are possible?

90. ## Math

To get to school, you need to walk 9 blocks south and then 12 blocks east. What's the diagonal distance from the start.

91. ## english

In the book of Julius Caesar, Marc Antony is against Caesar of becoming king. Are there any textual evidence from the book to prove this???

92. ## math

an airplane flies at 150 mph and heads N 30 degrees east. A 40 mph wind blows it in the direction S 30 degrees E. What is the planes resultant velocity

93. ## math

Growing up you lived in a country village. When you left for college, the population was 840. You recently heard that the population has grown by 5%. What is the present population?

94. ## math

Marie is using a rectangular box to ship a framed painting to a friend. The box is 20 inches wide, 24 inches long and 6 inches deep. What is the surface area of the box?

95. ## banglur

calculate the molality of sulfuric acid in which the mole fraction of water is .85

96. ## math

Joan is going on a bike trip. She plans to ride 9 miles in 45 minutes. At what rate mi/min must she travel?

97. ## math

fatima bought 1200 eggs at rs.16 a dozen. At what price per hundred must she sell the eggs so as to earn a profit of 15%. /////****urgent****////

98. ## World History

What is the brezhnev doctrine?

99. ## math

A scale drawing of an American flag is 14 inches long and 6 inches tall. The actual flag is 3 feet tall. a. True or False, the scale of the drawing is 2 in. : 1 ft. is it false? b. What is the perimeter of the american flag in the scale drawing? c. What is

100. ## math

In a box filled with 60 colored chips, 1/6 are blue, 1/2 are white, 1/4 are yellow, and 1/2 are purple. Find the probability of picking at random a purple chip or a white chip?

101. ## Math

the larger of two numbers is three times the smaller number, and their difference id 34. find the two numbers.

102. ## Religious Studies

I have to answer this question for homework: Are there better teachings than those of the Buddha? I was wondering if I could be prompted in the right direction for people who agree with this statement and why and vice versa. Thank you!

103. ## Socials studies

What were the effected of having to use rivers to complete such long journey? Help plss

104. ## Chemistry

In the most common dry cell what material is the electrode that is the center rod made of? copper graphite iron*** zinc

105. ## chemistry

add any reducing agent to kmno4+k2cr2O7+k1 and reconcile the charges and equations

106. ## physics

A stone is thrown up with a velocity of 39.2 at an angle of 30° above the horizontal find at what times, it will be at a height of 14.7

107. ## Physics

A ball thrown vertically upward and return in20 seconds.find the velocity and the maximum height with explanation

108. ## History

Which of these indicated that the Tang Dynasty had lost the Mandate of Heaven? a. military defeats, rebellions, and economic troubles b. earthquakes, economic troubles, and isolationism c. rebellions, mass migrations, and military dictators

109. ## Math

What size cylinder do I need to hold a volume of 800 in3 of shirts and hats(The cylinder must hold that volume)

110. ## Chemistry

Balance the following redox equation using the oxidation number change method. Describe each step that is involved: Al(s) + PbSO4 - - > Al2(SO4)3 + Pb(s)

111. ## chem

How many grams of NaOH are required to make a 1000ppm solution of Na+ ions

112. ## math

Sandra has some money she spends 2/7 of it on a book & she spends 2/5 of the remaining money on a bag Sandra has \$15 left how much did she have to start

113. ## math

The wheel in the figure has a diameter of 1 yard. The wheel is rolled forward as shown until the point marked A has undergone exactly one revolution around the wheel's axis. What number is represented by the distance in yards that the wheel has traveled

114. ## Economics

A description of the market form in which producers operate a detailed explanation,with graphs,of How the price of milk would have been determined in the absence of government involvement in the market a detailed explanation,with graphs,to show how this

115. ## math

Angle A measures (x + 6) °. Angle B is complementary to angle A and measures (3x - 8) °. find the value of x and the measures of each angle

116. ## English

Let's do gymnastics. This is a side exercise. Stand up, and put your legs apart at the shoulder width. Bend your body westward as you raise your right hand toward your armpit. Bend your body westward one more time as you raise your right hand above your

117. ## Math

You have wood donated from Home Depot to build a booth to sell the shirts and hats from, but you need to provide dimensions for the panels. They are 4 feet high and come in a variety of lengths. The space you have to build your triangular stand is a 5ft by

118. ## science

If a steel-density is 7.8g\cm is put in water, will it float or sink

119. ## Math

Create a container to store extra shirts and hats. Some shirts and hats get sold and no one comes to pick them up. They must be stored for next year. What size cylinder do I need to hold a volume of 800 in3 of shirts and hats(The cylinder must hold that

120. ## Math

You have wood donated from Home Depot to build a booth to sell the shirts and hats from, but you need to provide dimensions for the panels. They are 4 feet high and come in a variety of lengths. The space you have to build your triangular stand is 5 ft by

121. ## ECONOMICS

LIST 10 FUNCTIONS OF MONEY

122. ## English

1. Live a harmonious life with others. 2. Live harmoniously with others. 3. Get along with others. 4. Don't stay with negative people for a long time. 5. Don't spend time with negative people too often. 6. Don't argue with your friends frequently. (There

123. ## Algrebra

A new high school has just been opened, with an enrollment of 1000 students. The school has 1000 lockers, numbered 1 to 1000, to accommodate them. On the first day of school all 1000 lockers are closed. The first student enters the school and opens all of

124. ## algebra 1

Use the following statement to answer parts a) and b). One hundred raffle tickets are sold for \$3 each. One prize is to be awarded. Raul purchases one ticket. a). Determine his expected value. b). The fair price of a ticket is?

A teacher has two students, one three times as old as the other. The teacher is five times as old as the older student, and in 5 years she will be five times as old as her younger student. Find the teacher’s present age.

126. ## earth science

state the mostly reason for the differences in the weathering rate of the three rock materials

127. ## Quick physics help

what does a mirror do to images that it reflects

128. ## Teacher aid

To find the ZPD of given student you must

129. ## Pre alg

Simplify: 3x^2+6-2x+5x-4x^2+9 A.-x^2+3x+15 B.7x^2+3x+3 C.x^2-3x+15 D.-x^2+7x+15 I think it's D.

130. ## Math

There is an expression some people use that says, “What you put into it is what you get out of it.” People might use this expression to describe your skills at a sport or activity and how that relates to the amount of time and effort you spend

131. ## math

what is 875 multiplied by 3/2?

132. ## math-need sir-steve badly asap

show that L{f(t)}=f(s) then L{e^(kt)}.f{(t)}=f(s-k) where k=costant L=laplace transformation

133. ## English

There are many famous places in Busan. I'd like to introduce two of them. One is Busan Children's Grand Park in Busanjin-gu. Many kids and their parents visit the park to have a good time. Children can ride a rollercoaster. It is thrilling to be in a

134. ## math

Megan had a gross pay last week of \$980.00. If her total deductions were \$161.35, what was her net pay?

135. ## Math

A lecture hall has 108 chairs arranged in rows with the same number of chairs in each row. You eliminate three rows by adding six chairs to each of the other rows. How many rows are there now ? How many chairs are in each row ?

136. ## math

An account earns annual simple interest. Find the balance of the account. \$2000 at 9% for 6 months = \$

137. ## English

From “The Carolina Way” what is the following quote an example of? “ I made them understand that our plan would fall apart if they didn’t take care of one another: set screens; play team defense; box out; pass to the open man.” A. cultural

138. ## Algebra

Write an equation for a parabola with a vertex at the origin and a focus at ( -4,0 ). a) 𝑦 = −1/4𝑥2 b) 𝑦 = − 1/16x2 c) 𝑥 = − 1/4y2 d) 𝑥 = −1/16y2 I think it's A. Any help?

139. ## math

a box contains 3 red,2 blue,and 1 yellow marble. john picks a marble, does not put it replace it, then his brother tom picks a marble make a probability tree for the outcomes

140. ## Math

The pressure P of a gas varies inversely with its volume, V. Pressure is measured in units of Pa. Suppose that A particular amount of a gas is initially at a pressure of 104 Pa at a volume of 108 L. If the volume is expanded to 432 L , what will the new

141. ## math plz help my last chance to do this homework

a) write an expression in simplest form for the perimeter of each triangle. b)write another expression in simplest form that shows the difference between the perimeter of the larger triangle and the perimeter of the smaller triangle.

142. ## Math/ more ratios

Sam, Jimmy, And Andre shared a number of pennies in the ratio 6:5:7. Sam and Andre received a total of 754 pennies. How many more pennies did Jimmy receive than Andre? This doesn't make sense!! Please help. I hate ratios so much but if someone could help

143. ## Math

The heights of Japanese maple trees are normally distributed with a mean of 6 meters and a standard deviation of 0.2 meter. What percent of Japanese maple trees are between 5.5 meters and 6.7 meters tall?

144. ## Math/ ratios/ Fractions/ Singapore Math

Holly and Ross had a total of \$60. After holly spent 1/4 of her money and Ross spent \$5, the ratio of Holly's money became 1:2. How much more money did Ross have at the beginning?

145. ## physics

the range of a rifle bullet is 100m, when thither is the angle of projection if the bullet is fired withe the same angle from a car traveling at 36km/h towards the target, show that the range will increase by 100/7 squire root of tan thither

146. ## physic

three cell of 2.0, .5,1.8v are connected in series. if their battery are connected to an external resistance 4 ohms. calculated the total current flowing in the circuit

147. ## Math

It was observed that the shadow of a vertical pole of 6 meters longer when the angle of elevation of the sun was 30° than when it was 60°.By means of a sketched diagram,calculate,correct to two decimal places,the height of the pole.

148. ## physics

a gun,kept on straight horizontal ground is used to hit a car, traveling along the same road away from the gun with a uniform speed of 72km/h.The car is at a distance of 500m from the gun. when the gun is fired at an angle of 45 degrees with the

149. ## Algebra

For each of the following expressions, determine all of the values of k that allow the trinomial to be factored over the integers. A) x^2 + kx - 19 B) 25x^2 + kx + 49 C) x^2 + kx + 8

150. ## Chemistry

What is the change in enthalpy of the following reaction? 2NaBr(aq) + PbCl2(aq) 2NaCl(aq) + PbBr2(aq) Given: NaCl: ∆H = -411 kJ NaBr: ∆H = -360 kJ PbCl2: ∆H = -359 kJ PbBr2: ∆H = -277 kJ Im lost with this. Everytime I try to do it, it doesn't come

151. ## Math

On a centimeter dot grid, draw all the possible rectangles with a perimeter of 14 cm and sides whose lengths are whole centimeters. Label the lengths of two adjacent sides of each rectangle.

152. ## Algebra II

Taylor wants a used car, he would like for it to have a working air conditioner and less than 75,000 miles on it . Of the 200 cars ads he looked at, 60% have less than 75,000 miles. Of these low-mileage cars 65% had a working air conditioner. Of the cars

153. ## Pre-cal

Solving the principle values of x of the equation 4cos^2x-3=0

154. ## science

How many grams of zinc chloride are required to react with 15 grams of aluminum metal to create aluminum chloride and zinc metal?

155. ## Chemistry

Which atom has a change in oxidation number of –3 in the following redox reaction? K2Cr2O7 + H2O + S - - > KOH + Cr2O3 + SO2 Cr^+3 - - > Cr2O7^-2 Fe^+2 - - > Fe^+3 Fe^+3 - - > Fe^+2 Cr2O7^-2 - -> Cr^+3***

156. ## Chemistry

When it comes to something being spontaneous, what does it mean? I know its something that goes out without no outside force or something like that but what are example of something that is spontaneous ?

157. ## Physics

Two positive charged spheres, one with 2 times the charge of the other are 38 cm apart. The net force between them is 0.77 N. What is the charge on the lesser charged sphere?

158. ## Chemistry

Of the following metals, which ions are most easily reduced? aluminum*** iron mercury potassium

159. ## precal

The product of two numbers is 48 and the sum of their reciprocal a is 1/3. Determine the value of the two numbers.

160. ## Physics

Waves are coming towards your boat at a speed of 4 m/s, you are standing on the fish scale and notice that the reading on the scale changes up and down such that the lowest scale reading is ½ of the maximum scale reading. If the total vertical distance

161. ## Spanish

Which of the following countries is not part of Caribbean basin? ~Mexico ~Ecuador ~República Dominicna ~Cuba

162. ## math

a ________ represnts 25% of the data

163. ## algebra

assume kylie and caitlyn were extremely accurate and the correlation coefficient is r= 0.99. Find the line of best fit to model the data

164. ## math

A water pitcher contains 2323 gallon of water. You add 5757 gallon of water to the pitcher. How much water does the pitcher contain? Write the answer in simplest form.

165. ## math

20% of 200 is what number? 5% of what number is 8.5? What percent of 400 is 60?

166. ## Chemistry

In the zinc-copper cell, Zn(s) | Zn^+2(1M) || Cu^+2(1M) | Cu(s), which electrode is negative Cu^+2 Cu(s) Zn(s) Zn^+2***

167. ## math

constract a triangle whose perimeter is 12.5cm and base angles are 60degree and 80degree?