1. Educational tech-1 question

Use the text below written by Connections Education in 2012 to answer the following questions. The Second Industrial Revolution was not just marked by new inventions. New business practices were invented that transformed America’s economy. Between

2. math

Jamal writes the letters K-A-N-S-A-S on cards and then places the cards in a hat. What are the odds against picking an S?

3. Math

1. Add or subtract. (4x^2 + 15x -3) - (-3x^2 + 5) A. 7x^2 + 15x - 8 B. x^2 + 12x + 2 C. x^2 + 15x - 8 D. 7x^2 + 8 2. Simplify the polynomial. -3f^2 + 4f - 3 + 8f^2 + 7f + 1 A. 5x^2 - 4x - 2 B. -5x^2 + 8x - 2 C. 5x^2 - 8x + 2 D. -9x^2 - 8x + 2 3. Add or

what sis franklin roosevelt do to reduce the effects of the depression the day after he became president? a. he closed the stock market to prevent further losses b. he signed a bill to provide money to industries so they could reopen and put people back to

Explain how you know 6/6 and 1 are equivalent?

6. HELP!!! SCIENCE!!!

What are three key accomplishments of Marie and/or Pierre Curie?

Given that z is a standard normal random variable, compute the following probabilities (to 4 decimals). c. P(z -1.5) d. P(z -2.5)

1. What happens to the levels of surface water and groundwater during a drought? Surface water and groundwater levels increase during drought. Surface water and groundwater levels decrease during drought. There is no change in the levels of surface water

9. Math

A number cube with numbers 1 through 6 is rolled. Find the given probability. P(complement of 4) A. 1/6* B. 5/6 C. 2/6 D. 4/6

10. physics

A 4.0-m-long steel wire has a cross-sectional area of 0.050cm2. Its proportional limit has a value of 0.0016 times its Young's modulus. Its breaking stress has a value of 0.0065 times its Young's modulus. The wire is fastened at its upper end and hangs

11. science

A wave has a wavelength of 10mm and a frequency of 5 hertz what is the speed Answer Are 55 mm/s 50 hertz 2 mm/s thank you

12. maths - HCF

The product of HCF and LCM of two numbers is 119. Find the two numbers if one of the numbers is not 1. Please help me to solve this.

13. English

Which of the following sentences uses CORRECT punctuation? A.) Sharks are considered dangerous predators, however, a deep-sea diver says sharks can be playful creatures, too. B.) Sharks are considered dangerous predators; however, a deep-sea diver says

14. physics

A thin, uniform rod is hinged at its midpoint. To begin with, one-half of the rod is bent upward and is perpendicular to the other half. This bent object is rotating at an angular velocity of 7.1 rad/s about an axis that is perpendicular to the left end of

15. math

If Sue worked 6 3/4 hours on Monday, 4 hours on Tuesday, 7 3/4 hours on Wednesday, 8 hours on Thursday, and 5 1/2 hours on Friday, calculate her weekly wage at \$7.20 per hour.

16. B.A,H,S ENGLISH

traditional healers should be allowed to practise and prescribe medicine in hospitals and clinics

17. ap biology

What barriers might hinder the acquisition of plasmids?

18. Math

Write the expression using a single exponent. 2^2 * 2^8 A. 4^10 B. 2^10 C. 4^16 D. 2^16 Write the expression using scientific notation. (2.5 * 10^4)(4 * 10^3 A. 10 * 10^7 B. 10 * 10^8 C. 1 * 10^8 D. 10 * 10^12

19. Math (help)

what is the length of the radius of the LARGER cone(the LARGER cone has a slant height of 15) when the SMALLER cone has a radius of 8 and a slant height of 12ft ,please help.

20. Geometry

#19. Given a regular octagon, find the measures of the angles formed by (a) two consecutive radii and (b) a radius and a side of the polygon.

21. math

The balance sheet is used to project future cash receipts t or f

22. math

Activity Boys Girls Total Walk 3 6 Bike 5 3 skateboard 2 1 3. What percentage of the total students chose skateboarding? (1 point) 10% 20% 30% none of these *** 4. What percentage of the boys chose walking? (1 point) 30% **** 45% 25% none of these 5. What

23. Geography

Identify three perceptual factors that affect Egypt regionalization

24. math

Which of the following decimals is equivalent to three and ten hundredths? a)0.30 b)0.31 c)3.01 d)3.1 My answer is (d.)

25. Physict

This question is similar to some on driver's-license exams: A car moving at 50 km/h skids 15 m with locked brakes. Show that with locked brakes at 150 km/h the car will skid 135 m.

26. math

Name the position of the first digit of the quotient. 1. 832/4 2. 217/7 I don't understand. Someone please explain to me.

27. college algebra

The height of a projectile fired upward is given by the formula s = v0t – 16t2, where s is the height, v0 is the initial velocity and t is the time. Find the times at which a projectile with an initial velocity of 128 ft/s will be 144 ft above the

28. math

We use the normal distribution to make estimates about a population.t or f

29. Science

Hey guys! If you could help me with a few of these question (they are fill in the blanks), that would be much appreciated. 1. Fertilizers and pesticides pplied to farm fields in Pennsylvania have made their way down into the Chesapeake Bay in Maryland.

30. chemistry

I want to make sure I am correct in classifying whether the following properties of hydrogen are chemical or physical. thanks 1. hydrogen will burN in in oxygen to form water. CHEMICAL 2. hydrogen does not support combustion. CHEMICAL 3.hydrogen is usually

ANNE: I’m trying. Really I am. Every night I think back over all of the things I did that day that were wrong . . . like putting the wet mop in Mr. Dussel’s bed . . . and this thing now with Mother. I say to myself, that was wrong. I make up my mind,

32. math

Frank owns 300 acres of land. If he divides the land into 1/2 acre plots, how many plots will he have?

33. Math

A number cube with numbers 1 through 6 is rolled. Find the given probability. P(number

34. PROGRAMMING

design a program for the following. Registration workers at a conference for authors of children's book have collected data about conference participants, including the number of book each author has written and the target age of their readers. The

35. Science

Please Check my Work:pls check my work asap! 1. A ___ has a definite shape and a definite volume. (1 point) 1. solid (My Choice) 2. liquid 3. gas 4. molecule 2. Why is a gas able to flow? (1 point) 1. Its particles have melted and can move around. 2. Its

36. Physics multiple choice questions

1. Which of the following energy transformations best describes the operation of a solar powered battery charger? (a) electrical energy --> thermal energy --> kinetic energy (b) nuclear energy --> potential energy --> chemical energy (c) thermal energy -->

37. math multiple choice

. A man pays 60 cents for every 200m3 of gas used, plus a fixed charge of \$13.75.How much does he pay when he uses 55 000m3 gas?

is this a good intro paragraph use what you learned from reading "The Cask of Amontillado" to write an essay that provides an analysis of how the author creates the effect of surprise. William Shakespeare asked, “If you prick us do we not bleed? If you

39. Math

A 3500-seat theater sells tickets for \$75 and \$110. Each night the theater's expenses total \$245,000. When all 3500 seats sell, the owners want ticket revenues to cover expenses plus earn a profit of 25% of expenses. How many tickets of each price should

40. English 10

Which of the following should be done last when summarizing a source? • translate • evaluate • analyze • synthesize

41. Physics

A force platform is a tool used to analyze the performance of athletes measuring the vertical force that the athlete exerts on the ground as a function of time. Starting from rest, a 60.0 kg athlete jumps down onto the platform from a height of 0.600 m.

42. college alg.

The height of a projectile fired upward is given by the formula s = v0t − 16t2, where s is the height, v0 is the initial velocity, and t is the time. Find the time for a projectile to return to Earth if it has an initial velocity of 184 ft/s.

A force platform is a tool used to analyze the performance of athletes measuring the vertical force that the athlete exerts on the ground as a function of time. Starting from rest, a 60.0 kg athlete jumps down onto the platform from a height of 0.600 m.

44. Math

what happens to the surface area of a rectangular prism when each of the dimensions is doubled? 1. it doubles 2. it quadruples 3. it is six times greater 4. it is halved (I picked 2. Quadruples)

45. math

Brendan got 31 questions correct on his social studies test and missed 9 questions. What percent did he have correct?

46. Math

A number cube with numbers 1 through 6 is rolled. Find the given probability. P(number¡Ý3) A. 4/6 B. 1/6 C. 2/6 D. 5/6*

47. alg.

A fountain shoots water from a nozzle at its base. The height h, in feet, of the water above the ground t seconds after it leaves the nozzle is given by the function h(t) = –16t2 + 17t + 8. What is the maximum height of the water? Round to the nearest

48. math

Frank owns 250 acres of land. If he divides the land into 1/3 acre plots, how many plots will he have?

49. chemistry

To what volume should you dilute 60mL of a 12.0M H2SO4 solution to obtain a 1.85M H2SO4 solution?

50. maths Pls help trig

1 .If tanA=1/3 and tanB=1/7 (both A and B are acute),calculate 50sin(2A +B) 2.1Prove that sin2A+2cosA-2cos^3A/1+sinA =sin2A 2.2 for which values of A in the interval[-360;360] is the identity in 2.1 undefined? 3.If tanB=3/4 , 0

51. Math

Drinking 8 fluid ounces of milk provides 270.0 milligrams of calcium. How many fluid ounces of milk provide 72.5 milligrams of calcium? Round to the nearest tenth.

52. math

How many centimeters is a piece of paper that measures 12 inches?

Please help me by checking the following answers for me. 3. A student is attempting to solve the equation below for the variable x. Which of the statements below best applies to the mathematical work shown? Given √(4x-6)=12, I square both sides, so

54. grammar - conjanction

Choose the following words to combine these sentence. words: after and till because as but for if when since so though unless until while or 1) The children went home. It was getting dark. 2) The boys were allowed to read books. The teacher was absent. 3)

55. Science

In a(n) ___, the particles form a regular, repeating pattern. Answerlist: viscous liquid melting liquid amorphous solid or crystalline solid

56. chemistry

Are my answers correct? Identify each energy exchange as primarily heat or work and determine weather the sign of ΔE is positive or negative for the system. A. A rolling billiard ball collides with another billiard ball. The first ball (system) stops

Please help me by checking the following answers for me(There are 3 problems that I need someone to check). 3. A student is attempting to solve the equation below for the variable x. Which of the statements below best applies to the mathematical work

58. College algebra

One day a store sold 31 sweatshirts. White ones cost \$11.95 and yellow ones cost \$12.50. In all, \$379.80 worth of sweatshirts were sold. How many of each color were sold?

59. chemistry

Are my answers correct? Identify each energy exchange as primarily heat or work and determine weather the sign of ΔE is positive or negative for the system. A. A rolling billiard ball collides with another billiard ball. The first ball (system) stops

60. science

a 1.0 kg metal head of a geology hammer strikes a solid rock with a speed of 3.9 m/s. assuming all the energy was retained by the hammer head, how much will its temperature increase?

61. statistics

Find the test statistic, P-value, and critical value. Round to 3 decimal places. Claim: The mean IQ score of statistics professors is greater than 118. Sample data: n = 50, x = 120. Assume that σ = 15 and the significance level is α = .05 test statistic

62. math

Sandra needs 2 3/4 cups of flour for one kind of cookie and 3 3/8 cups for another kind. How much would she need for both kinds?

63. social studies

Which of the following statements about mayan and modern cultures is true

64. Geometry

Find the area. A rectangle with sides of lengths 4/5 foot and 1/2 foot

65. NAU

When jumping straight down, you can be seriously injured if you land stiff-legged. One way to avoid injury is to bend your knees upon landing to reduce the force of the impact. A 80.6-kg man just before contact with the ground has a speed of 6.59 m/s. (a)

66. Physics

1. Car A, with mass of 1250 kg, is travelling at 30 m/s to the east. Car B is a truck with mass of 2000 kg, travelling to the west at 25 m/s. Assume these two vehicles experience an inelastic collision but do not stick together, and Car A goes off 10 m/s

67. Physics

2. Boxcar A, with mass of 1500 kg, is travelling at 25 m/s to the east. Boxcar B has a mass of 2000 kg, and is initially at rest. The box cars collide inelastically and move together after they get stuck. What is their combined velocity?

68. Math

Anita says the plus sign + forms 2 pairs of vertical angles. Charles says it forms 2 pairs of congruent angles. Who is correct? Explain.

69. Mass Transfer

Solution of methanol and ethanol are substantially ideal. (a) Compute the vapour-liquid equilibria for this system at 1 and at 5 atm abs pressure, and plot xy and txy diagrams at each pressure (b) For each pressure compute relative volatilities , and

An astronaut of mass 84.0 kg is taking a space walk to work on the International Space Station. Because of a malfunction with the booster rockets on his spacesuit, he finds himself drifting away from the station with a constant speed of 0.570 m/s. With the

71. Math (help)

how to find the surface area of a cone with a diameter of 8 and a slant height of 7? with steps? please

72. Biology

Compare and contrast two classes of genes involved in regulating the cell cycle

73. college alg

The height of a projectile fired upward is given by the formula s = v0t − 16t2, where s is the height, v0 is the initial velocity, and t is the time. Find the time for a projectile to return to Earth if it has an initial velocity of 184 ft/s.

Most of us know intuitively that in a head-on collision between a large dump truck and a subcompact car, you are better off being in the truck than in the car. Why is this? Many people imagine that the collision force exerted on the car is much greater

Collina’s Italian Café in Houston, Texas, advertises that carryout orders take about 25 minutes (Collina’s website, February 27, 2008). Assume that the time required for a carryout order to be ready for customer pickup has an exponential distribution

On Friday and Saturday, 618 people attended a car show. If the same number of people went each day,how many people attended the car show on Saturday? My answer is 1,236. Is my answer correct? If not please show me how to work this problem.

77. Culture and Diversity

Introduction: As the cultural landscape changes, it is important to increase our awareness and understanding of a variety of cultures to appreciate why communication can be a challenge. For this task, you will choose a setting, a committee, or an

78. Science

What energy change occurs during condensation?

79. Chemistry

What is the ionic strength, I, of a solution at 25C containing 0.002 mol/L of BaSO4 and 0.001 mol/L of BaCl2? What is the activity coefficient of Ba2+ in this solution?

80. Chemistry

From the solubility product constants for CaF2 (fluorite) and CaSO4 (anhydrite) determine the equilibrium constant for the reaction CaF2 + SO4 2- --> CaSO4 + 2F-

81. Calculus

What are two conditions that must be met before the Extreme Value Theorem may be applied?

82. Chemistry

I am not sure if I understand how to balance this correctly. I need to write a balanced equation for the decomposition of solid copper(ii) sulfate to form gaseous sulfur trioxide and solid copper (ii) oxide. 2CuSO7 = CuSO4 + SO3 + CuO

83. math

Two angles are complementary. One contains 30° more than the other. Find both angles

84. Math

If the circumference of a circle is 18 ( pie symbol), what is the area of the circle? Thanks

85. Chemistry

Can someone please help me here? It's review for my test. Thanks! Calculate the expected pH of the buffer prepared in Part I of this lab. The Ka of acetic acid is 1.8 x 10-5 Calculate the expected pH when 10.0mL of 0.10M HCl is added to the buffer from

86. Shakespeare:Julius C.

What side of Cassius' character is seen for he first time? " So oft as that shall be, So often shall the knot of us be called “The men that gave their country liberty.”

87. MathS triG

1 .If tanA=1/3 and tanB=1/7 (both A and B are acute),calculate 50sin(2A +B) 2.1Prove that sin2A+2cosA-2cos^3A/1+sinA =sin2A 2.2 for which values of A in the interval[-360;360] is the identity in 2.1 undefined? 3.If tanB=3/4 , 0

88. Chemistry

Consider a groundwater saturated with respect to PbSO4 (Ksp= 1.7*10^-8) mixing with a groundwater saturated with respect to CaSO4 (Ksp=10^-5). Assume a 50:50 mixture between the waters such as 500mL of each water mixing to form a 1.0L solution a. What is

89. Math

How does 26.666 equal 26.2? Could you show me a model of how to do this? Thank You

Consider the implicit function ln(xy)-cos^-1(x-1)=x a. Find dy/dx. b. Find y when x = 1. c. Find the equation of the tangent line in slope-intercept form when x = 1. Show steps please! Thanks!

91. Physics

A block of mass 2.48 kg is kept at rest as it compresses a horizontal massless spring (k= 113 N/m) by 4.65 cm. As the block is released, it travels 0.462 m on a rough horizontal surface before stopping. The acceleration of gravity is 9.8 m/s^2. Calculate

92. Physics

A 3.9 g mass is released from rest at C which has a height of 0.9 m above the base of a loop-the-loop and a radius of 0.4 m. The acceleration of gravity is 9.8 m/s^2. Find the normal force pressing on the track at A, where A is at the same level as the

93. Physics

A 3 kg block collides with a massless spring of spring constant 90 N/m attached to a wall. The speed of the block was observed to be 1.5 m/s at the moment of collision. The acceleration of gravity is 9.8 m/s^2. How far does the spring compress if the

94. Physics

A cart loaded with bricks has a total mass of 22.3 kg and is pulled at constant speed by a rope. The rope is inclined at 27.3◦degrees above the horizontal and the cart moves 9.3 m on a horizontal surface. The coefficient of kinetic friction between

If a rock is propelled upward from the surface of Mars at a velocity of 93 m/sec, it reaches a height s = 93t – 1.86t^2 after t sec. a. Find the rock’s velocity and acceleration at time t. v'(t)=93-3.72t a''(t)=-3.73 b. How long does it take the rock

4x^2=80x-400

97. Algebra

Area = 15x^3 + 25x^2 what is the length and width of the rectangle?

98. math

The product of square of a number and the cube of the same number is equal to 32 what is that number

99. science

22. Given that humans thermoregulate, explain why your skin is cooler than your body core.

100. science

Describe DNA replication in prokaryotes. Include the major steps for origins of replication, unwinding DNA, and synthesis of new strands. Include at least 1 simplified diagram.

101. Math

In the expression -7x - 5x^2 + 5, what is the coefficient of x? A. 7 B. 5 C. -5 D. -7

102. English

To protect the environment, what do you have to do? 1. I'd better use less water. 2. I'd better take the stairs instead of the elevator. 3. I'd better ride my bike to school. 4. I'd better use less electricity. 5. I'd better not use paper cups or plates.

103. Math

8 people are going to sit on 6 chairs. Two of them John and Kelly can't sit next to each other. How many ways can you put the people to seats? The answer is 10080, but I can't figure out how to calculate it.

104. Social Studies

This office evaluates the federal budget. A.) IRS B.) OMB C.) CBO D.) NSC answer: C.)CBO I question if the answer could be B.)OMB. Thank You.

105. math

Brendan got 32 questions correct on his social studies test and missed 8 questions. What % did he have correct?

106. Computers

Need help creating pseudocode for the following. Registration workers at a conference for authors of children's books have collected data about conference participants, including the number of books each author has written and the target age of their

107. math

Write an equation for the realartionship. Tell what the variables represent. It takes Li 1 hour to drive 65 miles, 2 hours to dirve 130 miles, and 3 hours to drive 195 miles.

108. pre calculus

determine whether the equation defines y as a function of x. √x + y = 12

109. chemistry

how many milliliters of .400M hydrogen Monobromide solution can be made from 50mL of 8M hydrogen monobromide solution?

110. chem090

100.0 g of Potassium Phosphate reacts with 100.0 g of Barium Chloride. Which molecule is completely used up by the reaction? How many grams of the other molecule are left over?

111. english

1. An essay-type exam is an example of a(n): 2. A discussion board in an online course can be another form of: 3. Explain, discuss, analyze, state, and evaluate are examples of __________ words in an essay-type exam

112. math

36 is what percent of 143?

113. chemistry

If during an experiment, only potassium channels open on a neuron, what do you expect will happen to the membrane potential? Why?

114. Math

A bank lent \$1.2 million for the development of three new products, with one loan each at 6%, 7%, and 8%. The amount lent at 8% was equal to the sum of the amounts lent at the other two rates, and the bank's annual income from the loans was \$88,000. How

Prepare a one-page description of your plans to solve the problem for one of the following research studies. Use the following headings for the problem:

116. Chemistry

How many moles are in 1.50 x 1023 molecules NH3? A. 2.49 x 10 -1 mol NH3 B. 2.49 x 101 mol NH3 C. 2.65 x 10 -1 mol NH3 D. 2.78 x 10 1 mol NH3

117. Biology

If a gas contains 25 ml of oxygen at 37oC and a pressure of 700 mm Hg, what is the volume under STP.

118. math

For its fleet of trucks, Overland Transport, Inc., purchased 580 tires rated at 50 pounds each. The tires had a retail price of \$85 each. The sales tax in 4.5%, and the federal excise tax is \$0.15 per pound. A. What are the amount of sales tax per tire and

119. Chemistry lab

I mixed 10 mL of 9mM KI with 5 mL of 0.9mM in a flask, and then added it to a beaker that contained 10 mL of 45 mM KBrO3, and 10 mL of 90mM HCl. This reaction took 61.60 seconds to complete. I think I need to find the change in concentration, but don't

120. Science

Refrigerators requires a lot of electricity and uses the most electrical energy in most households. Why do refrigerators require so much energy to be operated?

121. science

Given that humans thermoregulate, explain why your skin is cooler than your body core.

122. science

Compare and contrast gametogenesis in human males and females.

123. chemistry

If a gas contains 25 ml of oxygen at 37oC and a pressure of 700 mm Hg, what is the volume under STP.

124. Finance

The projected revenues and costs that form the basis of the potential for a project's acceptance or rejection are estimates of ______________. A. Future activity B. Past activity C. Known activity D. Current activity

125. Physics

Most of us know intuitively that in a head-on collision between a large dump truck and a subcompact car, you are better off being in the truck than in the car. Why is this? Many people imagine that the collision force exerted on the car is much greater

126. Physics

An astronaut of mass 84.0 kg is taking a space walk to work on the International Space Station. Because of a malfunction with the booster rockets on his spacesuit, he finds himself drifting away from the station with a constant speed of 0.570 m/s. With the

127. chemistry

why should you use a minimum amount of water to rinse the conical vial while transferring the purified acetaminophen to the Hirsch funnel?

128. Electricity

Refrigerators requires a lot of electricity and uses the most electrical energy in most households. Why do refrigerators require so much energy to be operated?

129. Physic II

If a small amount of a substances that is at 50 deg C is placed in a large insulated room,what will the final temp. of the substances be? will heat transfer to the room take place? will the room temp. go up?

130. Physic II

Describe a situation in which you expect the initial cooling rate of a given object to be rapid and one in which the initial cooling rate might be slow. Note: the initial cooling rate is the change in temp. per second at first

131. Language Arts ~CHECK MY ANSWERS~

1.) Resilient people usually a. complain when they have bad luck. b. bring good luck to others. c. are able to deal with setbacks. • My Answer: (B- brings good luck to others.) 2.) When the speaker refers to pausing to “enjoy the view / of the trees

132. PHYSICS HELP

A long, ideal solenoid has a diameter d=12cm and n=1200turns/meter carrying current I=20A. If the current is lowered at 4.33amp/s to zero, what is the magnitude of the induced electric field in V/m at a position 8.2cm from the solenoid's axis

133. health

________ a synthetic opiate that blocks the effects of heroin and eliminates withdrawal symptoms, has a proven record of success for people addicted to heroin

134. BIOLOGY

how would i find the osmotic pressure of something from "0.9% NaCl solution and MW is 58 grams" .. ? is there a formula or some sort i am missing? if so can you tell me what that is cause i have several problems like these that i don't know how to solve

135. Language Arts ~CHECK MY ANSWERS~

Are these answer are correct? Please be 100% correct / honest. Directions: For questions 7–15, rewrite each sentence, adding commas where needed. 7) While I was researching skateboards, I found an interesting old newspaper. 8) In the June 29, 1999

If x^3 - y^3 =3 , use only implicit diff. to find d^2y/dx^2 . Express your answer in terms of x and y only and write is as a proper fraction that is completely simplified as much as possible.

137. Social Studies

Please help me by checking the following answer to the question. Which of the following was part of the Great Compromise reached at the Constitutional Convention? A. Every state would have two seats in the Senate. B. Some slaves would be included in the

138. mathematics

The number of buds on the plant doubles every week for six weeks if there are two buds on the plant at the end of the first week calculate the number of buds that there will be at the end of six weeks

139. Pre-Algebra

Jenny buys an 18'sandwich. Demi gets 1/2 the amount the Jenny gets. Joel gets 3/4 the amount Jenny gets. How much does Jenny get? Please explain.

140. PreCalculus

State the Vertical Asymptote, Horizontal Asymptote, domain, range, x intercept and y intercept for the following Function. y= (5-x)/(x+3) I already know that the Vertical asymptote is -3, so that means the domain is everything except -3, but how do I find

141. Social Studies

Has the effort of Westerners to aid the rest of the world done more good than harm? Its a opinon but i would like a answer please. Please make your answer at least 6 sentences. Thank you very much

142. Precalculus /Algebra

Hi I know is is probably basic but can anyone assist with the following : Find all real Roots, expressing as whole # and # under radical sign, not as fraction. and factor completely f(x)= X^3-2x^2-15x+30 I got roots at 2 (x-2) and +/- √5 If someone

143. Chemistry

What is the pH of a solution of NaOH 10^-12 M?

144. Algebra

Maria's average speed for a 6 hour trip was 40kph. For the first 4 hours, she drove at an average rate of 50kph. What was her average speed for the last 2 hours?

145. health

Skeletal muscles have an abundant supply of ________.

146. Gr 10 math - finding vertices

I know how to do the equation for one line in a shape, but how do I find them for two?

147. ovarian and uterine cycles

There are two I could not find. Are those that I have so far correct? 1. Name the hormone that triggers development of a primary follicle. I had no idea. . . 2. The corpus luteum releases progesterone in the luteal phase. 3. Oestrogen and progesterone are

148. algebra

How do you add π -3/2?

149. physics

A technician needs to determine the amount of energy required to increase the temp. of a vat containing 12 kg of water. The water enters the vat from the water mains at a temp. of 15 deg C. The technician knows that the final temp. required is 90 deg C.

150. Biology

how would i find the osmotic pressure of something from "0.9% NaCl solution and MW is 58 grams" .. ? is there a formula or some sort i am missing? if so can you tell me what that is cause i have several problems like these that i don't know how to solve

151. science

discuss organism adaptations to the environment using clear and specific examples.

152. Algebra

What are the coordinates of the x-intercepts of the graph of y = 2x2 + 6x – 20? • (–5, 0), (2, 0) • (5, 0), (–2, 0) • (–4, 0), (10, 0) • (4, 0), (–10, 0)

Find dy/dx for the following: a. y = x^π b. y = π^x c. y = x^x d. y = π^π e. xy = π

Assume a binomial probability distribution has p = .60 and n = 200. c. What is the probability of 100 to 110 successes (to 4 decimals)? d.What is the probability of 130 or more successes (to 4 decimals)?

155. college alg.

An event in the Summer Olympics is 10-meter springboard diving. In this event, the height s, in meters, of a diver above the water t seconds after jumping is given by s(t) = –4.9t2 + 7.1t + 10. What is the maximum height that the diver will be above the

156. precal

Hi I know is is probably basic but can anyone assist with the following : Find all real Roots, expressing as whole # and # under radical sign, not as fraction. and factor completely f(x)= X^3-2x^2-15x+30 I got roots at 2 (x-2) and +/- √5 If someone

157. physics

A golfer can generate a peak angular velocity of 3.89 rev/s. If the distance from the club head to it's axis of rotation is 0.96 meters, calculate the peak linear velocity with which he can hit the ball in meters per second.

158. physics

A force of 120.0 N is applied to 2.00 cm diameter piston in a closed container of water with a density of 1,000 kg/m2. What is the force on another piston with diameter of 25.0 cm connected to the container?

159. What is a biology lab practical?

Is it a test on paper or can I look at notes and answer questions? Do I have to dissect something, have the TA ask me a question and answer instead of dissecting as a group? I've just been quizzing myself on parts of the animal in case we can't use notes,

160. Physic II

List at least four or five variables that the rate of cooling of an object in a large room might depend on?

x^2+8x+16=25

162. math

For its fleet of trucks, Overland Transport, Inc., purchased 580 tires rated at 50 pounds each. The tires had a retail price of \$85 each. The sales tax in 4.5%, and the federal excise tax is \$0.15 per pound. A. What are the amount of sales tax per tire and

163. Math

To win a certain board game, a tossed token must land on a shaded square on the board. The probability of winning is approximately 23%. If the board has a total area of 130 congruent squares, how many of these squares are shaded?

164. maths

Px^2-(2p+q)x+(p+q)=0 solve by completing of square method

165. Math

The teachers in a childcare center are taking their children for a field trip.if each bus takes 40 children, there will be 16 vacant seats. If each bus takes 36 children, 20 children will not get any seats. How many buses are there?

166. algebra 1

(n+9)^2 n^2+81 (r-11)^2 r^2-22 (z+13)(z-13) Z^2

167. science

Using your knowledge of physiology, genes and evolution, discuss organism adaptations to the environment using clear and specific examples.

168. grammar - tense

I will at the airport. I will be a the airport. which statement is correct for simple future. Please explain the fact behind it.

169. trig

cscx+1/cscx cosx = secx+tanx

170. math

if a 30 ft ladder makes a 65 degree angle with the ground, how many fee up the wall will it reach

171. Math

Is 2/3 greater than 3/4

172. algebra

can someone show line by line step by step factor x^2-15

173. grammar

please help me if this is correct in grammar. please correct so that i will know the correct grammar. 1.Anyone have done this experience before.

174. Math

7/12, 3/4, and 2/3 in order which one is the smallest to the greatest?

Consider the function f(x)= x −1≤ x< 0 f(x)=tan(x) 0≤ x ≤ π/4 a. Draw a neat sketch of this function. b. Is f(x) continuous at x = 0? (Justify your answer.) c. Is f(x) differentiable at x = 0? (Justify your answer.) show steps! Thanks!

If a rock is propelled upward from the surface of Mars at a velocity of 93 m/sec, it reaches a height s = 93t – 1.86t^2 after t sec. a. Find the rock’s velocity and acceleration at time t. v'(t)=93-3.72t a''(t)=-3.73 b. How long does it take the rock

177. Literacy

I'm doing a project about the Holocaust and we have a special person that was in the Holocaust that we have to research. Her name is Hetty d’Ancona. Can you help me find some facts about her?

178. Math

Can someone show me a model of what 8 divided by 0.3 would look like? Thanks

179. basic algebra

2x + 4X = 12 X = ? Thank you.

180. science

Describe DNA replication in prokaryotes. Include the major steps for origins of replication, unwinding DNA, and synthesis of new strands. Include at least 1 simplified diagram.

Find the equation in slope intercept form of the tangent line and the normal line to the curve x^2+4xy+y^2=13 at the point.(2,1). show steps please!!! thank you!

182. English

1. He tattoos a rose once a month. 2. He woos the girl every weekend. (Are both grammatical? Do you use 'woos' frequently in daily conversation?)

183. chemistry

is 3M less or more concentrated than 9M of sulfuric acid? I think that 9M is more concentrated but I wanted to make sure. thanks

184. Subtracting Fractions with like Denominators

If Lori's neighbor gave her sixths eighths cup of milk, would she then have enough milk to make her 2 pancakes?

185. math

Mrs. Grace has 10 sandwiches that are 4 inches in diameter. They can fit exactly into a different box... Need to show work in box, help, can't seem to figure this out

186. math

What % of \$3.75 is \$1.50?

187. Maths

If you change 6 m to centimeters what multiplication problem will you solve

188. Math

Pay can buy a package of 20 balloons for \$6 or a package of 50 for \$9. How much cheaper is each balloon in the package of 50 balloons?

189. Education

Explain what four general modes of instruction are and what these mean for teaching. What is effective instruction, and do you agree with this model?

190. math

50 in.2 to cm2

191. Calculus

What is the end-behavior asymptote for f(x)=(x^2+4x-5)/(x-2) ? There is an oblique asymptote at y=x+6 and a vertical asymptote at x=2. Is one of those the end-behavior asymptote?

4m^2-24m+36=0

193. Ela

I need help ! I have to fill in the sentence with words that make sense As happy as ____ (4 examples)

194. Math

Please help me with the following by checking my answer. The length of the hypotenuse of an isosceles right triangle is √6 inches. How long, in inches, are the legs of the triangle? A. 3 B. 6 C. √3 - (This is my answer.) D. √6 I am not sure on my

195. physics

How to calculate the maximum vertical component of the force in rope BC when the force in rope is 400N

196. Micro economics

Consider a firm with the following production function: q = (ak+bl)^(1/2) The firm's total costs can be written as C = F + rk + wl 1. Calculate the firm's contingent factor demand. Illustrate it in a graph including the firm's isoquant map 2. Assume that

197. Math

In how many words can you form the word ALGEBRA?