1. Algebra

1. Which is an example of an algebraic expression? A. 4(3 +8) B. 18^2 C. 3 - a D. 21 . 4 *** 2. Which is an algebraic expression for 5 more than z? A. 5z B. z + 5 C. 5z + 5 *** D. 5 - z 3. Which word phrase can be used to represent the algebraic expression

1. What is the solution to 89+k=-42? a. K = 131 b. K = 47 c. K = -47 d. K = -131** 2. What is the additive inverse of -7? a. -7 b. 7** c. -|-7| d. -(-(-7)) 3. What is the solution to y-7=-7? a. y=14 b. y=7 c. y=0** d. y=-7 4. What is the value of

3. physics

A resultant force of 20 N gives a body of mass m an acceleration of 8 m/s^2 and a body of mass m' acceleration of 24 m/s^2. What acceleration will this force cause the two masses to acquire if fastened together.

4. Chemistry

Write the balanced chemical equation for the reaction of the weak acid HCN with water. Include the phase of each species.

5. physics

A wheel starts from rest and rotates with constant angular acceleration and reaches an angular speed of 12.0 rad/s in 3.00 s. Find the angle (in radians) throuh which it rotates in this time.

1. What is 47 and 52 rounded to nearest hundred? answer: both 0?

7. geometry

describe a process you would use to create the perpendicular bisector to a segmant AB using only an unmarked strait edge and an unmarked compas

8. chem

which of the following are mixtures? 1. air (mostly n2 and o2) 2. salt (NaCl) 3. Salt Water 4. Water (h20) is the answer 4 and 2 ?

9. geometry

When constructing a congruent line segment to cd , the ray needed for the construction must be shorter than

10. physics

An airplane is heading due south at a speed of 734 km/h . A wind begins blowing from the southwest at a speed of 110 km/h (average). In what direction should the pilot aim the plane so that it will fly due south?

11. geometry

gi bisects angle dgh so that m

12. ms.sue math

Which sum will be irrational? a. 3 + 2 b. √19 + 7/2 ****** c. 18/3 + 11/10000 d. –6 + (–3.251) Which product will be rational? A.17.12 * 33 ***** B. √ of 3 * √ of 9 C.4*pie D.- √ of 20 * 15 A whole number is added to a number with two digits

13. Math

Carol's bookshelf has4 shelves with6 books on each. Her brother Robert has 3 shelves with 7 books on each. They want to combine their books. If they put 9 books on a shelf, how many shelves will they need?

14. 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 ?

The depth d of water in a tank oscillates sinusoidally once every 4 hours. If the smallest depth is 7.9 feet and the largest depth is 10.1 feet, find a possible formula for the depth in terms of time t in hours. (Let the water depth be at the average when

16. american politics

The Great Compromise: A. established representation based on population in the Senate. B. allowed state legislatures to choose House members. C. created the mechanism to end slavery. D. solved the problem of representation by big and small states through

17. Algebra

Please check my answers 1.)what is the algebraic expression for the following word phrase : the product of 6 and n ? A.6-n B.6+n C.6n***** D.n/6 2.what is the algebraic expression for the following word phrase : the quotient of 6 and the sum of x+y?

18. Biology

Justify why it is important to scientists to have a universal system of measurements. What does this mean? Can someone help explain it to me? I'm doing some research but I'm still confused. Please help? Thanks

19. Plz help with literature

The Most Dangerous Game Directions: Each question has a different point value. (134 total) As always, answer in complete sentences. Use the back of the sheet or your own paper. DO NOT CRAM ANSWERS ON THIS SIDE OF THIS SHEET! (5) 1. What do you admire or

20. Math

Which list shows the pattern you would get if you used the rule 12n? A. 12,14,16,18 B. 12,24,36,48 C. 12,13,14,15 D. 12, 22, 42,52

21. Medcal Billing an Coding

I am stuck on this one coding scenario I'm hoping you can help me. I have gotten CPT code 90947 or 90945 but I am unsure which is the right one? I need a CPT code for an inpatient hospital scenario, Dialysis Progress Note. The patient was seen during CAPD

22. math

2. You are installing a new pre-constructed fence in front of your house. Each fence section measures 4 1/2 feet wide, and each end will also have a decorative piece that measures 1 3/4 feet wide. If the space for the fence is 30 feet wide, what is the

23. math

Luanne estimates the sum of 39 + 15 is about 40 + 15, or 55. Jacob estimates the sum of 39 + 15 is 40 = 20 or 60 which one is closer to the exact sum?

24. Math

The Wildcats basketball team scored 18 points in the first half of the game. All the points came from either 2 or 3 point baskets. If a total of 8 shots were made ( some two pointers and some three points), how many of each type of shot were made?

25. Math

Suki's has 54 rock songs,92 dance songs,and 12 classical songs on her play list.If Suki's music player randomly selects a song from the playlist,what is the experimental probability that the song will not be a classical song?Explain your answer.

26. Alg 2

Expressions, Equations and Inequalities I am struggling can someone please explain how to get the correct answer choice thank you! 1. Which of the following is equal to (3x/5-7)+7 5x/3 3x/5 3x-35/5 (3x-7)+35 5. name the property of real numbers illustrated

27. physics

a 60-kg student travelling in a 1000 kg car with a constant velocity has a kinetic energy of 1.2 *10^4 J. What is the speedometer reading of the car in km/h?

28. Math

Joy put 6 photos on each page of her album. When she was done , she had 2 pictures left over. She put 38 pictures in the album. Which equation can be used to find how many pages joy filled?

29. math

P(-5, 5) is a point on the terminal side of θ in standard position. What is the exact value of sec θ?

30. Physics

Two cars are initially 10.5 km apart on a straight road. If the cars are moving toward each other, car 1 with a speed of 9.5 m/s and car 2 with a speed of 10.40 m/s, how many seconds will it take before the cars meet? Round your answers to three

31. Thermodynamics

If 25.4 kg of copper at 33°C receives 240 kJ of heat. Calculate the final temperature of the metal.

32. american history

What factors led the wartime alliance between the United States and the Soviet Union to disintegrate into the Cold War?

33. Math

A scuba diver dives to a depth of 50 feet, then rises 15 feet, sinks 12 feet, then rises 20 feet. Write an expression to describe this situation. Then solve it.

34. english

From reviewing your notes, you can learn to understand the author find the story’s main idea determine the word count locate the date of publication pls help

35. lee

Unscramble the place values.write three forms of thenumbers. 3tens+7thousands+5tenthousandds+2ones+6hundreds

36. math

In the diagram, \$\angle A = 30^\circ\$, \$\overarc{DE} = 170^\circ\$, and \$\overarc{BC} = 110^\circ\$. Find the measure of arc \$CE\$, in degrees.

37. Algebra 2

solve the inequality. Graph the solution set. 5r + 4 is less than or equal to 5

38. Physics

Two cars are initially 10.5 km apart on a straight road. If the cars are moving toward each other, car 1 with a speed of 9.5 m/s and car 2 with a speed of 10.40 m/s, how many seconds will it take before the cars meet?

Evaluate a/b+c^d for a=6,b=3,c=4 and d=5 A.42*** B.18 C.82 D.360 What is the simplified form of the expression ? -(12x-8y) A.12x+8y B.12x-8y***** C.-12x+8y D.-12x-8y

40. algebra

Which of the following is the most appropriate unit to describe the time you can drive a car based on the amount of gas? Minutes per gallon, because the independent quantity is the gallons Minutes per gallon, because the independent quantity is the minutes

42. Algebra

Evaluate the following expressions using formula : 16a^2+24ab+9b^2,when a=4,b=3

43. Algebra

A small garden measures 7 ft by 14 ft. A uniform border around the garden increases the total area to 170 ft2. What is the width of the border?

44. Math

Evan uses some of his comic-book money to buy a magazine for \$4. If Evan uncle gave him \$30. What fraction of his money did he spend on the magazine?

45. physics

A car moving at 120 km/h is 100 km behind a truck travelling at 80 km/h in the same direction. How many km does the car travel before it overtakes the truck?

46. Math

Rectangular courtyard is 57m 50cm and 22m broad. Determine the least possible number of square stones of the same size required to pave it.

47. Accounting

Department S had no work in process at the beginning of the period , 18,000 units were started during the period, 2,000 units were 30% completed at the end of the period, and the following manufacturing costs were debited to the departmental work in

48. MATH

A TRUCK DRIVER DROVE 300 MILES IN 6 3/4 HOURS. hOW MANY MILES PER HOUR DID THE DRIVER DRIVE? 300 X 27/4= 300/1 X 4/27= 1200/27

49. math

In the diagram, \$\angle A = 30^\circ\$, \$\overarc{DE} = 170^\circ\$, and \$\overarc{BC} = 110^\circ\$. Find the measure of arc \$CE\$, in degrees.

50. Geometry

A circle has a center at (3,5). The point (3,8) is on the circle. What is the circumference of the circle to the nearest tenth of a unit?

51. Math

Suki has 54 rock songs 92 dance songs and 12 classical songs on her playlist . If suki's music player randomly selects a song from the playlist, what is the experimental probability that the song will not be classical

52. algebra

How many possible license plates can be formed consisting of five letters in the first letter must be either M,N, or P?

53. american history

Did the Watergate scandal have any lasting effects on the nation? Explain.

54. Physics

A motorcycle officer hidden at an intersection observes a car driven by an oblivious driver who ignores a stop sign and continues through the intersection at constant speed. The police officer takes off in pursuit 1.70 s after the car has passed the stop

55. math

So what I have to do is say which property justifies each step, this is what I put and my teacher said I got it wrong... could someone please help me? question~ 3. (6a + 2a) +8b = (6 + 2)a + 8b Answer~ Associative property of addition

56. american history

What were the key aspects of Lyndon B. Johnson’s Great Society?

57. Algebra

The revenue in dollars from a school play is given by the expression 5x+2y, where x is the of adult tickets sold and y is the number of student tickets sold. If the revenue is \$220, find the x- and y- intercepts and explain what they represent in the

58. Math

Calculate the sum of all possible two - digit numbers using 3 and 4

59. English

1. Did anyone call me while I was gone? 2. Did anyone call for me while I was gone? - Yes, you have a message from Lisa. =========================== Which question is right? What is the difference between 'call me' and 'call for me'?

60. mechanics: simple harmonic oscillation

Consider an ideal spring that has an unstretched length ℓ and a spring constant k. Suppose the spring is attached to a mass m that lies on a horizontal frictionless surface. The spring-mass system is compressed a distance of x_0 from equilibrium and then

61. mechanics: spring problem

You drop a block from rest from a height h=3 m. The block lands on the spring at height h1 = 1.5 meters (spring constant = 160Nm) and compresses it 0.5 m before the block and spring momentarilty come to rest. (The spring then pushes the block upward.) What

62. Mchitheki

Life orentation

63. Math

The question says express each repeating decimal as a fraction: 5.23232323 This is my work but my answer doesn't seem right: 100x= 523.23232323 - 10x= 52.23232323 90x= 470.909090 / 90x. \90x x= 5.23232323 What am I doing wrong? And how am I suppose to know

64. P.E

can stress can have long-term physical and emotional consequences

65. Algebra

What is the simplified form of the expression? A fraction with a numerator of 5(14 – 2) squared and a denominator of 2. 60 30 72 360************

66. Physics/trig

During takeoff, an airplane climbs with a speed of 300 m/s at an angle of 36 degrees above the horizontal. The speed and direction of the airplane constitute a vector quantity known as the velocity. The sun is shining directly overhead. How fast is the

67. Syangempumelelo

Illustrate three ways on how this issue can impact negetive to the health of the people in your school

68. georgia state history

Which of the following rivers originates from groundwater? A)Chattahoochee B)Flint C)Savannah D)Chattooga***

69. Science

Scientific methodology is what distinguishes science from other disciplines. Explain

70. history

Why did the founding fathers separate the powers of government?

71. MATHS

A MAN SPENT 1/2 OF HIS MONEY ON BUNS AND 2/3 OF THE REMAINDER ON BREAD AND HAVE 200 NAIRA LEFT HOW MUCH DID HE HAVE AT

72. raj english school

the diameter of a wheel is 63 cm, the distance travelled by the wheel in 200 revolution is :

73. Physics

A 50 g bullet travelling with an initial velocity of 400 m/s penetrates into a wall with an average force of 4*10^4 N.It goes out of the wall with a velocity of 50 m/s. What is the thickness of the wall

74. math

I'm going over my 4th grader's homework. She has place value math problems. I'm having a problem with this question. In the number 3,024,456, the value of 4 in the hundreds place is _____ times ____ than the value of the other 4. My answer 100 times less

75. Precalc Math

The question says express each repeating decimal as a fraction: 5.23232323 This is my work but my answer doesn't seem right: 100x= 523.23232323 - 10x= 52.23232323 90x= 470.909090 / 90x. \90x x= 5.23232323 What am I doing wrong? And how am I suppose to know

76. Math

How do I identify the property used in a number sentence?

77. Camansi National High School

Math In a 3 digit number the hundreds digit is one half of tens digit while the ones digit is more than the tens digit. If the sum of 3 digit is 11, find the numbers.

78. physics

physics:the notes at 110Hz has two strings at this pitch. if 1 slips from its normal tension of 600N to 540N what beat frequency would be heard when the two strings are stuck simultaneously?

79. algebra

a hemisphere dome on top of a silo has a diameter of 40 feet, find the volume of the dome r=6cm v=4/3 times 3.14 times radius6cubed

80. Pre Calculus

In exercise 100, you are given the dollar value of a product in 2005 and the rate at which the value of the product is expected to change during the next 5 years. Use this Info. to write a linear equation that gives the dollar value V of the product in

81. entrepreneurship 1

If you would be an entrepreneur what business would u like to own? what would be some concepts or what you would do. i'm trying to create a company but i don't know what i should do whether cleaning service, construction service etc, so i'm wondering what

82. Medical Billing and Coding

I need a CPT code for an outpatient hospital scenario, Radiology Report. Examination: MRI of brain with contrast. Clinical symptoms: Slurred speech, right arm weakness. Magnetic resonance examination of the brain was performed prior to contrast utilizing

83. math

Jung bought 15 years of clothes. he used 2 1/3 yards of cloth to make a jacket. He cut the remaining cloth into equal pieces.find the length of each of the remaining pieces? my answer : 15 used 2 1/3 cut 12 3/4 to 2 equal pieces length: 12 3/4 x 2 =24

84. Math

Determine the sum of all the numbers that can be formed with digits 1,2 and 3, each occurring only once in a number

85. Calculus (limits)

The question is to "state the value of each quantity, if it exists." We are given a piecewise function that is graphed, and no equation. What does it mean when we're asked to find f(2)?

86. math

Sarah had 4 pieces of rope.each piece was twice the length of the previous piece. the first piece was 1 foot 3 inches long. How many feet of rope did Sarah have altogether. first piece=1 foot 3 inches second piece= 2x1 foot 3 inches third piece= 2 foot 6

87. Mat

Express 210 as the product of primes

88. maths

a cell phone plan has a basic charge rs35 per month . the plan includes 400 free minutes and charge 10paise for each additional minute of usage. write the monthaly cost c as a function of number x of min used .

89. Algebra

"if a is not equal to 0, find the intercepts of the graph of y=ax+b in terms of a and b?"

90. Physics

After an average acceleration of 3.21 m/s2 during 2.41 s, your car reaches a velocity of 15.9 m/s. Find the car\'s initial velocity.

91. physics

physics:the notes at 110Hz has two strings at this pitch. if 1 slips from its normal tension of 600N to 540N what beat frequency would be heard when the two strings are stuck simultaneously?

92. math

ung bought 15 years of clothes. he used 2 1/3 yards of cloth to make a jacket. He cut the remaining cloth into equal pieces.find the length of each of the remaining pieces? my answer : 15 used 2 1/3 cut 12 3/4 to 2 equal pieces length: 12 3/4 x 2 =24

93. Thermodynamics

Help me please...! take home quiz >.< A 1Kg of Water at 80 degree Celsius is added to 0.8Kg of water at 20 degree Celsius find the change in entropy.?

94. Math

The football team has played 11 games. They lost 2 fewer than they won. They lost 4 times more than they tied. How many games did they lose,win and tie?

95. Chemistry

f the ΔH of fusion for aluminum is 10.9 kJ/mol and the ΔH of vaporization is 284 kJ/mol, then what is the change in entropy upon melting down an aluminum can that weighs 18.9 grams?

What is the value of the Y-intercept of the least-squares regression line from this data? Round you answer to at least two decimal places. I add all the y up's and came up with 2714.4. Then is says the least-squares regression line for these data has a

97. Algebra

Simplify 0.5(4.1x+3.6y)

98. Algebra

(6x−7) (3x-5) (5x+78) ------ + ------- = ------- 4 7 28 How do you solve for the answer? Explain each step.

99. physics

B = 10 log (1)

100. science

History as a process and history as a study are interdependent. Explain

101. Math

When does the square root of "n" represent a rational number? a. n is a perfect square b. n is a positive integer c. n can be written as a ratio d. n can be any real number Which is it and please explain.

102. Math

Find the sum of all the numbers that can be formed with the digits 3,4 and 0, repetition of the digits being not allowed

103. mechanics

Dylan hangs a calendar on a refrigerator with a magnetic hook. Unfortunately, the magnet is too weak, so the magnet and calendar slide down the side of the refrigerator to the floor with an acceleration of magnitude 3ms2. If the coefficient of sliding

104. Math

Pouring concrete into backyard. The patio slab will be 7m long, 2m wide and 10cm deep. How many cubic meters of concrete will you need to fill the patio?

105. Thermodynamics

Can I have any energy transfer as heat transfer that is 100% available? Explain with equation

106. Algebra

Which expression is equivalent to (-2) (a+6) -2a +6 2a+12 -2a-12****** -2a+12

107. american politics

Congress proposed all 27 constitutional amendments. A. 25 B. 26 C. 27 D. 28 C?

108. Health

In striving to meet the 2010 Dietary Guidelines for Americans, one should consume more of certain foods and nutrients such as ________.

109. math

Sean bought 8 slurpees at \$1.50 each and 6 Popsicles. He gave the cashier \$25.00 and received \$4.00 change. How much did each Popsicle cost? my answer: each slurpees for \$1.50 the total will be = 8x \$1.50= \$12 for all slurpees. so, \$25-12= 13 13-4 (the

110. Statistics

A list of transactions contains 100 numbers: 60 gains and 40 losses. The gains are positive numbers and the the losses are negative numbers. The units are thousands of dollars. For the 60 gains, the average is 18 and the SD is 7.5. For the losses the

111. Physics

An object is thrown vertically upward and has a speed of 12 m/s when it reaches one fifth of its maximum height above the launch point. Determine its maximum height. g=9.81 m/s^2. Please help

112. mathematics

A two digit number became five-sixth of it self when it's digit are reversed the digit are differ by one .Find the number.

113. Chemistry

Determine the pH of a solution made by mixing 50,00 mL of 0,100 M nitric acid with 100 mL of 0,200 M nitric acid

114. maths

a person left a property of 30000 heritage is divided into his 4 sons and 3 daughters such that each daughter get half of the sons share . a loan of 8000 also to be paid. find the share of each.

115. math

Beaker A,B and C contain water with a total volume of 1 litre.Beaker B has 125 millilitres less water than beaker A. Beaker B has twice as much water than Beaker C.Find the volume of water in beaker B.

116. Algebra

20 years ago, dan is 16 more than twice the age of ken. the sum of their ages is 70. how old are they?

117. Chemistry

A star is estimated to have a mass of 4.4x1026lbs. It has a diameter of 8.69x105 mi. Calculate the density in g/cm3.

118. math

(5 + x2)y'' − xy' + 10y = 0, x0 = 0 Find the first four terms in each of two solutions y1 and y2

119. Pre-Calculus

Write a linear equation to fit the description. The line with a slope of zero containing the y-intercept of x/3 + y/9 = 1 I'm not sure what to do here. Can someone please help me?

120. sjpuc

A swimmer speed in the direction of flow of water is 60km/hr .against the direction of flow of water is 8km/hr calculate the swimmer speed in still water and velocity of flow of river

121. Chemistry

I'm having trouble with knowing the relations between quantum numbers n, l, m(sub l), and m(sub s). Could you please explain?

122. History

What factors led to Europe exploration and colonization of north america

123. cms

how much water we will add in 300 lliter of a solution then its concentration must be changed from 25% to 20%

124. Algebra

5 more than twice a number is the same as 3 times the number.

125. geometry

pleases help.. the midpoint of uv is (5 -11) the concordance of one endpoint are u(3,5) find the coordinates of endpoint v

126. MATH

-3(x + 3)- 2(x + 4)= -3x + 9 - 2x + 8= -3x - 2x + 9 + 8= answer x + 17 is this correct

127. algebra 2

it gives me long dry headaches. Solve the value equation 2/3x - 5/ - 8=8 I know I have to add that -8 to the right side of the equal sign.

128. algebra

the width of my garden is 10 feet shorter than twice the length. the perimeter is 70 feet. find the length and the width

129. math

Mrs. Adrian bought 30 yards of dirt for her garden in her backyard. she hired 4 girls to spread the dirt. if the girls divided the dirt up evenly, how many yards did each girl need to spread in Mrs. Adrian's garden? please model drawing my answer I will

130. Pre Algebra

Use multiplying by 1 to find an expression equivalent to nine fourths 9 4 with a denominator of 3232xx.

132. precalc

For the graph y=2, what is the: A) Domain B) Range C) X values of all zeroes D) Equations of all asymptotes E) 1 to 1 or not F) Continuous or not (if continuous tell where) G) Increasing, decreasing, both (if both tell where), or neither H) Bounded above,

133. algebra

The slope of a line perpendicular to y=-2x+4 is: A) 1/2 B) 1/4 C) 2 D) -2 E) -1/4 F) -1/2 would it be A?

134. Math (Ratios)

Ok, I already know how to work ratios, but I'm confused on this question: Jessica had 3 pairs of tennis shoes and 3 pairs of sandals, What is the ratio of tennis shoes to sandals Jessica owned? Pair means 2 right? So would it mean 6 tennis shoes to 6

135. Physics

Consider the following model for the electrostatic stretching of DNA. A spring with spring constant kDNA = 250 pN/m is tethered to an immobile surface on one end and a charge of qDNA = −350e on the other. A uniform electric ﬁeld of magnitude |E| = 2.5

136. Math

Find the difference -3 -4

137. Chemistry

Given the following values of ΔH, ΔS and T, calculate ΔG (in kJ). The values are: ΔH = -17.0 kJ, ΔS = -50.0 J/K, and temperature = 10.0 C.

138. math

Mrs. Adrian bought 30 yards of dirt for her garden in her backyard. she hired 4 girls to spread the dirt. if the girls divided the dirt up evenly, how many yards did each girl need to spread in Mrs. Adrian's garden? please model drawing my answer is: 15

139. Math

Simplify -4(9x-13)

140. calculus

the equation y+y"=0 is the differential equation of? a.)sine function b.)sinusoidal c.)cosine function d.) a and c e.) abc

141. MATH

if nCr+2*nCr=nCr4+1*nCr-1

142. writing

Jack was told the overall content of his paper was weak. What does this mean? A. The tone of his paper was not original B. He had too many grammatical errors. C. The overall ideas in his essay were not fully developed. D. The flow of his essay was

143. Community psychology

Can some on think of a public meeting with board of directors that are like involved for a community I need to like a website do to need to write down the public meeting .

144. Math

\$38,000 loan, 60 month/ 5years, 7.5% rate, and the payments are made quarterly not monthly. How much are the payments going to be?

145. algebra

3 (a2 + b ) - 4 ( a2-b ) =

146. Jose

Simplify -12x(-10+4x)-3x(9x-8)