1. Physical Science

A delivery man pushes the button to ring the doorbell. Which of the following forms of energy is not involved in this process? electrical sound mechanical gravitational my answer is gravitational

2. Math

1. Write the set in roster form: N is the set of real numbers that are factors of 12. A. {2,4,6} B. {1,2,3,4,6} C. {1,2,3,4,6,8,12} D. {1,2,3,4,6,12}***

3. Math

2. Write the set described below in the set-builder notation: S is the set of real numbers that are less than 15 A. o

4. Math

What is the amount of sales tax owed on a $39 jacket if the tax rate is 5%?$1.85 $1.90$(1.95) $195.00 A flower arrangement was marked down 12.5%. If the flowers originally cost$20, what is the amount of the discount? $2.40$(2.50) $2.05$17.50 Find the

asked by Help I need somebody not just anybody
5. American Government

1) which of the following describes the supreme court's role in defining constitutional principles? A) the supreme court plays a minimal role in defining constitutional principles. B) the supreme court uses judicial review as a tool to define

6. math

A train starting at 11 am travels east at 45 km / hr while another starting at 12 noon from the same point trivels south at 60 km / hr . how fast the train separating at 3 p. m

7. Science

A 60-kg cheetah reaches a speed of 30m\s as it chases its prey. What is the kenetic energy of the cheetah?

8. maths

find hours to fill a tank of 70m*44m*3m filled by pipe of diameter 35 cm at rate of 6m/ second?

9. history

which of the following best describes daily life in the south during the civil war? a.about the same as before the war because factories provided necessities b.difficult but tolerable because most people did not experience major changes c.better because

10. Math

lucky drew an isosceles triangle as shown if the measures of XYZ is 25 what is the measure of XYZ

11. physics

A 0.32 kg box of macaroni is held in place at the front of a 3.14 kg shopping cart only by the force of static friction as the shopping cart accelerates. Determine the minimum acceleration, in m/s 2, that the shopping cart must have if the box is to be

12. Physics

two identical metallic ball spherical shells A and B charges 4Q and -10c are kept a certain distance apart a third uncharged sphere C is first placed in contact with sphere A and then with sphere B the sphere B are bought in contact and then separated find

13. chemistry

How many grams of NH4Cl will dissolve at 50 degrees C?

14. Math

Anna planted peas in 3/8 of her garden and herbs in 1/8 of it. She divides the rest of the garden into 6 sections. What fraction of the original garden is each section?

15. math

karyn purchased a square picture frame. each side measures 1 1/4 feet. what is the area of the picture frame in square feet?

16. math

A college student takes a standardized test and scores a 163. If the mean is 155 and the standard deviation is 7, what is the student’s percentile rank? (Assume a normal distribution.)

17. alegebra

Translate the sentence into an inequality. Six subtracted from the product of 2 and a number is at least 18

18. Math

The total length of 4 blue banner and 5 yellow banner is 49 m. The total length of 2 blue banner and 1 yellow banner is 17 m. All banner of the same colour have the same length. Find the length of a blue banner

19. Language Arts

What is the meter of line 6? A wildcat roaring past steep banks A)stressed, unstressed, stressed, unstressed, stressed, unstressed, stressed, unstressed B)unstressed, stressed, unstressed, stressed, unstressed, stressed, unstressed, stressed***

20. Physics

A child’s toy consists of plastic attached to a spring. The spring is compressed against the ﬂoor a distance of 2.46 cm, and the toy is released. The acceleration of gravity is 9.8 m/s2 . If the toy has a mass of 102 g and rises to a maximum height of

21. Data

Bridget works part time in a shoe store. Sometimes when it is not busy, she rearranges the shoes for fun. If she takes six different pairs of shoes and rearranges them in a row, in how many ways can she rearrange them so that no two shoes match? Is the

22. Math-Statistics

CAN SOMEONE HELP ME WITH THIS? A recent study found that, of the 1771 participants aged 12 to 19 in the National Health and Nutrition Examination Survey, 19.5% had some hearing loss (defined as a loss of 15 decibels in at least one ear). This is a dramatic

23. Math

Tell how many terms this expression has : 4c+7 1/2 I don't know how to do this will you please help

49. math

A farmer has enough food to last his 40 cattle 35 days. If he buys 50 cattle, how long can the same feed can last? Let X be the number of days the same feed can last

50. Calculus

M = log(E)-11.4/1.5 How do you express E in terms of M?

51. Chemistry

Express the absolute value of the partial charges as a decimal fraction of the elementary charge for CH. The bond length, is 131.1 pm, and the Dipole Moment, D is 1.46

52. science

determine the number of grams of NH4CL that will dissolve in 100 grams of water at 25 Celcius.

53. math

Translate the sentence into an inequality. Six subtracted from the product of 2 and a number is at least 18 Use the variable y for the unknown number.

59. math

Abel bought 3 similar shirts and 4 similar jackets for $360. Marcus bought 1 such shirt and 3 such jackets for$220. Find the cost of each shirt.

60. pre-Calculus

The coffee starts out at 176 degrees, and cools off like this… Min Degrees 1 169 2 162 3 156 5 146 10 125 15 111 20 101 30 90 60 81 If he measured the coffee at 2 hours and 3 hours, what temperature would it be?

61. Math 115

Create a piecewise function of the following scenario where D(t) is the total distance walked (in miles) as a function of time t (in minutes): “You begin a walk from your home at a fast pace of 6 miles per hour for 30 minutes. You rest for 10 minutes,

62. physics

A steel aircraft carrier is 358 m long when moving through the icy North Atlantic at a temperature of 1.99 °C. By how much does the carrier lengthen when it is traveling in the warm Mediterranean Sea at a temperature of 22.0 °C?

63. social stdies

why does oil bring wealth to arabia and iraq? 1.abundance of wells 2.low cost of production this one 3.high global demand 4.scarcity of water

64. Algebra

If you walk 4/5mile and then jog 3/8 mile what is the total distance covered how much farther did you walk than jog

65. Algebra

find the distance between the pair points (-2, -3) and (-12,-19)

66. Statistics

A bin of 35 manufactured parts contains 6 defective parts and 29 non-defective parts. A sample of size 5 parts is selected from 35 parts. Selected parts are not replaced. How many different samples are there of size five that contain exactly 2 defective

67. physics

The Eiffel Tower is a steel structure whose height increases by 19.7 cm when the temperature changes from -9 to +40 oC. What is the approximate height (in meters) at the lower temperature?

68. Philosophy

1.What is Pascal's Wager? A.A bet that one cannot lose B.An argument for probability theory C.An argument for the existence of God D.An argument for why you should believe in God E.None of the above 2.Who was Pascal? A.A painter B.A bishop C.A

69. Algebra 2

It takes 12 hours for 8 people to paint a house. How long will it take 3 people to do the job? I'm not really sure how to go about solving this problem.

70. physics

A flask is filled with 1.53 L (L = liter) of a liquid at 92.2 °C. When the liquid is cooled to 15.1 °C, its volume is only 1.36 L, however. Neglect the contraction of the flask. What is the coefficient of volume expansion of the liquid?

71. algebra

the discriminant of a quadratic equation is -5 which answers describes the number and type of solution of the equation? 2 complex solutions

72. statistics and probability

5. A fastener company is supplying washers to a manufacturer of kitchen appliances who has specified that the outside diameter be 0.500 ± 0.025 inch. Measurements made on 250 washers show that the process is in good statistical control, the diameters are

73. maths

the rectangular garden of 6 metres by 4 metres is surrounded by a path of uniform width. if the area path is 56m squad, what is its width

74. english parallel structure

When the movie Star Wars premiered in 1977, it was both surprising and a revolution in its special effects.

75. Algebra 2

Find an equation of variation in which y varies inversely as x and the following is true: y=31, when x=4 Originally, I mixed up the equations of inverse and direct variation, and got 31=m(4) ----- b Obviously, I got it wrong, but I've gone ahead and redid

76. Maths

There are 150 mangoes in basket p and basket q. 1/4 of the mangoes in basket p were yellow and the rest were green. 3/5 of the mangoes in basket q were yellow and the rest green. The number of green mangoes in both baskets were equal. How many yellow

77. Physics

A wooden block with mass 0.26 kg rests on a horizontal table, connected to a string that hangs vertically over a friction-less pulley on the table's edge. From the other end of the string hangs a 0.12 kg mass. A) What minimum coefficient of static friction

78. Math Calc

John was wondering at what speed an arrow leaves a bow when it is released. So he went to a field and shot the bow at an angle of 45 degrees. The arrow hit the ground at a distance of 600 feet. Ignore air resistance. For simplicity, assume that the arrow

79. Math 115

Create a piecewise function of the following scenario where D(t) is the total distance walked (in miles) as a function of time t (in minutes): You begin a walk from your home at a fast pace of 6 miles per hour for 30 minutes. You rest for 10 minutes, and

80. math

the width of a math textbook is 0.75 inches. How many math textbooks can be placed standing up on a shelf that is 18inches wide

81. Physics

What is the total amount of potential energy that can be stored in a 10,000 gallon water tower built with the water tank 61.50 m above ground level?

82. Social Studies

1. What is the Panchantantra? A: a collection of sayings by the Buddha*** B: a book of fables or animal stories C: tales of the Hindu gods D: a recently found text from Mohenjo-Daro I think its A 2. From the text what can you conclude about the Buddha's

83. social studies?

I need help with my homework. I have to evaluate free school on: Effectiveness Efficiency Equity

84. Logarithms

8log8(5) − log8(7) = ?

85. statistics and probability

n a written test given to a large class comprising 42 students, the test scores were found to be normally distributed with a mean of 78 and a standard deviation of 7. A minimum score of 60 was needed to pass the test. A score of 90 or greater was needed to

86. Chem

Complete and balance each of the following molecular reactions. Indicate the phase of each species. If no reaction occurs, write N.R. A) ____ Na2CO3 (aq) + ___ Mg (NO3)2 (aq) --> B)____ K2SO4(aq) + ___ Fe(CH3CO2)2 (aq) --> C)___ AlCl3 (aq) +____ K2S (aq)

114. Algebra

One of the polynomials below cannot be factored using integers. Write “prime” for the one trinomial that does not factor and all the factors for the two that do. a) x2– 5x + 6 b) x2+ x + 6 c) 2x2– 2x + 12

115. algebra

what are the values of 2-5x=-3x^2 a= -5, b = 3, c = 2 a = -3, b = -5 , c = 2 a = 2, b = -5, c = -3

116. Pre calculus

find 2 exponential functions with asymptote of y=80 , with points (0,176) (1,169) (3,156) (5,146) (20,101) (30,90) (60,81).one should have the base of "e"

117. algebra

if you have a 15 ft ladder and angle it 75 degrees how far from the house will the base of the ladder be

118. Math - Calculus

The horizontal velocity is constant. (Ignore air resistance.) Recall from your study of trigonometry that if you release a rock at a speed v in a direction that makes an angle α with the horizontal, then the initial vertical velocity vv and the horizontal

roxy spends 1/5 hour cleaning the table 3/10 hours washing dishes, and 4/5 hour reading a book. How many hours does she spend doing all these activities?

120. algebra

Eye color is determined by genetic combinations.There are 4 possible genetic combinations: RR=Brown,RL=Brown,LR=Brown,LL=Blue.Show a 4 square Punnett square that models these conclusions. Thank you.I hope someone can show me the solution.

121. Math

The clock is at 2:30 now its at 2:45 what fraction of a turn did the minute hand move

122. Science

What is a cation?

123. Vectors Q#2

Find the shortest distance between the point D with coordinates (-2,-2,9) and the line passing through the points with coordinates B(2,4,6) and C(4,1,5)

124. Science

How many grams of ammonium nitrate nedd to be added to 500g of water so that the freezing point becomes -8.3 °C?

125. Math

Know if 28 and 3 if the first number is multiple of the second

126. Help math

find 2 exponential functions with asymptote of y=80 , with points (0,176) (1,169) (3,156) (5,146) (20,101) (30,90) (60,81).one should have the base of "e"

127. Math

You shoot a rifle at an angle of 42 degrees. The bullet leaves your rifle at a height of 6 feet and a speed of 810 feet per second. So I used the equation h(t)=6+(810 sin42)t-16t^2 to calculate that the bullet will hit the ground after 33.88580 seconds.

128. maths

ahmed can type 12 stories each consisting of 200 words in 6 hours.how much time will he take to type 7 such storis

129. Science

describe what happens, at the molecular level, during melting.

130. Science

what are the similarities between thermal energy and electrical energy

40% of 101?

132. Pretty weird Algebra

In the word of five, where could you see the number of 4?

133. Math

Find k so that (x-2) is a factor of x³+kx-4? Kindly help me this one

134. Physics

Why the household appliances starts / runs as soon as we switch them on

135. Maths

Ben gives 1/3 of his annual savings to charity he spends 3/5 of the rest on domestic bills. 1. What fraction of his savings does he spend altogether 2. Find the fraction of his savings left.

136. Logarithms

log8(8^2) − ln(e^0.5)