suppose a map is scaled so that a half inch represents 25 miles. how many inches of the map represents 87 1/2 miles?

35,906 questions, page 143
1. Geometry

find the circumference of the figure, Give both the exact value and an approximation to the nearest hundredth. Circle 6.6km I am just learning this and a teacher is using inches but the textbook has metrics and I never learned the metric system Please

asked by Jeannie on March 28, 2011
2. Precalculus

A wheel rolling at a constant speed has a radius of 15 inches and takes 30 seconds to roll 100 feet along the ground. What is its angular velocity? Use 3.14 for pie, and solve to two decimal places.

asked by Liz on February 22, 2012
3. Physics

My willy bird is 6 inches and has a mass, M, of 2.1kg. During penetration, it reaches a force or 15.0 N with a coefficient of friction 0.75. Calculate its rotational velocity given no respect to time. How much work is done in a thirty second period?

asked by playax0902 on April 7, 2014

My willy bird is 6 inches and has a mass, M, of 2.1kg. During penetration, it reaches a force or 15.0 N with a coefficient of friction 0.75. Calculate its rotational velocity given no respect to time. How much work is done in a thirty second period?

asked by Mark on April 7, 2014
5. calculus

An Open Box Of Maximum Volume Is To Be Made From A Square Piece Of Cardboard Twentyfour Inches On Each Side By Cutting Equal Suares Frm The Corners And Turning Up The Sides

asked by ciara on September 16, 2012
6. Integers

A scientist measured the temperature at the surface of a 7 inch deep snow. The temperature was -27 degrees. At ground level, the temperature was 24 degrees. How much warmer was the temperature at ground level.

asked by Edward on May 22, 2015
7. English

I left out the following sentences. Please, could you check them too? 1) My backpack is very heavy because inside (in it? are both possible) there are extra clothes, food, water (or food and water) for two days, a map, and a compass. 2) I'll take a big

asked by Matthew on March 14, 2012
8. Math

Jan is making a 3-tier wedding cake for 300 guests. She will make the cake for \$3 per serving with the following specifications: -Each serving is 4 inch.3 -Each tier must be smaller than the tier below it. -Each square tier is 4 in. tall with a side length

asked by WALTER on March 26, 2014
9. algebra 1

someone please help me. The function f(x) is shown below: f(x) = (5)x - 1 The function f(x) is shifted to the right by 13 units. Which of the following best represents the new function? f(x) = (5)x + 13 f(x) = (5)x + 12 f(x) = (5)x - 14 f(x) = (5)x - 13

asked by Anthony on August 12, 2015
10. math- geometry

A dilation with a scale factor of 4 maps figure A onto A'. By what scale factor would another dilation map figure A' back to figure A? is it 1/4?

asked by renee on April 4, 2016
11. English

Thank you very much for your corrections. I checked my mistakes but I have some more doubts. 1) During our stay in London we were accomodated (we stayed) in a three-star hotel. 2) We had breakfast and dinner at the hotel and we were free to have lunch

asked by Henry2 on September 12, 2011
12. math

write a definition for an equivalent fraction. A. a fraction of multiplication B. fraction with unlike denominators C. a fraction with the value of n D. a fraction thar represents equal amount I put down D.

asked by Ami on July 29, 2012
13. Mathematics

Suppose that the number of insects captured in a trap on different nights is normally distributed with mean 2950 and standard deviation 550. a) What is the probability of capturing between 2500 and 3500 insects? b) Suppose that we change the location of a

asked by Lindz on November 6, 2006
14. calculus2

A manufacturer of corrugated metal roofing wants to produce panels that are u = 48 in. wide and 2 in. thick by processing flat sheets of metal as shown in the figure. The profile of the roofing takes the shape of a sine wave with equation y = sin(πx/12).

asked by A on July 21, 2018
15. Math

which customary unit would be best to measure the capacity of water in the dolphin tank at an aquarium A.fluid ounce B.quart C.gallon*** which customary unit would be best to measure the weight of all of your textbooks A.ounce B.pound*** C.ton which

asked by Sid.V on December 9, 2015
16. Econ

For a typical negative externality market graph, with Demand curve (also labelled private value), and supply curve (private cost) and a social cost curve above the supply curve. What is the optimal quantity that maximizes total economic well being? Is it

asked by Anonymous on March 5, 2007
17. CIVICS

A citizen's group supporting a new water bottling plant in Citizen City has produced an ad to be run on local TV. Which of the following is a most likely to be heard in this ad? The new bottling plant will be good for our natural resources. The new

asked by ILOVEcake HELP ASAP on March 17, 2016
18. chemistry!!

If someone could please help me figure out this problem and tell me how you did it, I would really appreciate the help!! Chaum drives a car 10,000 miles during the year and the car gets 22 miles/gallon. How many pounds of carbon dioxide in a year will

asked by stephanie on February 26, 2007
19. Science

Waste produced by people in New York State has been dumped into the Atlantic Ocean, where it is distributed by surface ocean currents. Which coastal area is most likely to become polluted by this waste? A west coast of Mexico B south coast of South America

asked by Angie on February 5, 2009
20. MATH

How High?- No Air Resistance Suppose a small cannonball weighing 16 pounds is shot vertically upward, as shown in Figure 1, with an initial velocity v0 = 300 ft/s. The answer to the question “How high does the cannonball go?” depends on whether we take

asked by SYAKIRAH on April 1, 2019
21. Critical thinking

I think this would be Relativist fallacy, am I right????? Letter to the editor: “Once again the Park Commission is considering closing North Park Drive for the sake of a few joggers and bicyclists. These so-called fitness enthusiasts would evidently have

22. statistics

A specific study found that the average number of doctor visits per year for people over 55 is 8 with a standard deviation of 2. Assume that the variable is normally distributed. 1. Identify the population mean. The population mean is 8. 2. Identify the

asked by Cameron on June 3, 2013
23. geography

indicate the equation of the line that is the perpendicular bisector of the segment with endpoints (4, 1) and (2, -5) it shows a series of boxes and says to fill them in... _+_ _=_ _ _ _ _ each underscore represents a box. characters to use include; = < >

asked by bethany on May 31, 2016
24. Algebra 1B

The two-way table represents the results of a random survey taken to determine the preferred vehicle for male and female drivers. Given that the participant is a female, which choice is the conditional relative frequency that she prefers an SUV? A) 0.25 B)

asked by Spring Allergies on May 7, 2019
25. physics

Consider a map oriented sot hat the x axis runs east-west (with east being "positive" direction) and y runs north-south (with north "positive"). A person drives 35 km to the west, then turns and drives 44 km to the south. Find the x and y components of the

asked by judith on September 1, 2010
26. Math

Allison's 11th birthday is just around the corner. Her parents are remodeling her bedroom for her birthday. They will replace her carpet and repaint her walls Allison's Room Height 8ft Width 11ft Length 13ft 1.Allison wants the top 1/2 of her walls painted

asked by Derrick on March 20, 2012
27. chemistry

What is the difference between the two strong acids, nitric and hydrochloric acid, when they behave as the oxidised forms in a reduction half-equation?

asked by alex on May 6, 2013
28. Physics

if the area of cross section of a wire in a circuit is doubled its resistivity? (a)becomes one fourth,(b) becomes half (c) remains the same (d) doubles. Exlpain please?

asked by Mumtaz on November 11, 2016
29. Physics

If a cyclist takes two minutes to complete half revolution on a circular path of 120m radius.what is the average speed?

asked by Sharu on July 18, 2016
30. physics

a 2500kg truck applies a force of 4000 N to the road to accelerate forward. What is its rate of acceleration?...can someone please help? I got half way and then got really confused what do I do? Thanks

asked by Sarah on October 28, 2011
31. spelling

Could you give me the synonyms & antonyms for face, door, cut, done, group, true, half, red, fish, and plants? Thanks.

asked by Yan on March 26, 2009
32. Physical Science

I'm working on the "Introduction to radioactivity and half-life experiment". It's harder than I thought. Any references that you know of that might make this easier to understand?

asked by Tawanza on November 13, 2007
33. college algebra

In 4 years, 30% of a radioactive element decays. Find its half-life. (Round your answer to one decimal place.) _____ yr

asked by Dee on November 17, 2013
34. math

the half life of thorium -229 is 7340 years. how long will it take for sample of this substance to decay to 20% of its original amount

asked by michael on November 4, 2018
35. math

How long will it take a given quantity of carbon-14 to lose 99.9% of its radioactivity if the half life is 5730 years? The formula I have been given is Q=ae^rt This is using log and ln functions.

asked by Niki on April 25, 2011
36. Algebra II

Write y=x^2+4x-1 in vertex form. y=x^2+4x-1 y=(x^2+4x+8)-1-8 y=(x+2)^2-9 This isnt one of my answer choices,what am I doing wrong? in second line: y=(x^2+4x +4 )-1 +4 (take one half of the middle coefficient, then square it) y=(x^2+4x + 4 )-1 - 4

asked by Jonathan on August 8, 2007
37. physics

if a cyclist takes one minute to comple half revolution on a circular path 120 m radius.what is the average velocity?

38. Math Ms.Sue Help

Which data value has the highest frequency? A) 1/16 B) 3/16 C) 3/8 D) 5/8 A number line with four x's above one sixteenth, one x above three sixteenths, one x above three eighths, two x's above one half, two x's above five eighth, and one x above three

asked by Selena on March 21, 2017
39. math

John was jogging at a rate of 5mph and he has a one half mile start on Sue who jogs at 7 mph. In how many minutes will it take before they meet?

asked by Donna on October 23, 2016
40. Geometry

The running track at the right is a rectangle with a half circle on each end. FI and GH are diameters. Find the area insidevthevtrack to the nearest tenth.

asked by Sebastian on September 15, 2013
41. Math!!!!

Jessica deposits \$6509 in bank at r% p.a. compounded half-yearly. If she obtains an amount of \$6764 after 1 year, find the value of r.

asked by Nicole on March 26, 2012
42. Chemistry

After 1.78 years, 1.990 g of a radioisotope remains from a sample that had an original mass of 2.000 g. Calculate the half-life of the isotope.

asked by Rachel on September 16, 2012
43. Biology

Explain how the half-life of a radioactive isotope affects the usefulness of that isotpe in dating specific types of rock?

asked by brooke on February 3, 2010
44. math

The following conjectures were made by students. Which do you think are false? Give a counterexample for each conjecture if possible. a. Only half of the nonzero even numbers up to 100 are divisible by 4.

asked by chandice on June 20, 2009
45. Physics

A pendulum has a mass of 3-kg, a length of 3 meters and swings through a (half)arc of .47 radians. To the tenth of a Joule, what is its Total Energy?

asked by Skyler on August 15, 2010
46. Chemistry

Radium-223 has a half-life of 11.4 days.Approximately how long would it take for the activity of a sample of 223Ra to decrease to 2.00 % of its initial value?

asked by Josh on April 8, 2016
47. Chemistry

please help me balance these equations using the method of half reactions.. Na + HCL = NaCl + H2 Pb + PbO2 + H2SO4 = PbSO4 +H2O Thank you, even a little help is appreciated.

asked by Justin on April 2, 2014
48. chemistry

Complete and balance the displayed half reaction in neutral aqueous solution taking into account the electrons. Mg(s) → Mg2+(aq)

asked by andy on June 1, 2010
49. science, chemistry

Separate this redox reaction into its component half-reactions. O2+2Cu---->2CuO thought it was: Oxidation 2e-+O2---->2O(-2) Reduction Cu---->Cu(2+)-2e- but this is wrong

asked by Cari on November 30, 2012
50. Science

If a loaded truck that can accelerate at 1 m/s2 loses its load and has one-half of the original mass, what acceleration can it attain from the same driving force?

asked by Justin Wyms on May 20, 2014
51. chemistry

If the half-life of a first-order decomposition reaction is 24.2 minutes, how long will it take for 10.0 moles of the reactant to decompose so that only 2.5 mol remains?

asked by Josh on September 4, 2012
52. Chemistry

Radium-223 has a half-life of 11.4 days. Approximately how long would it take for the activity of a sample of 223Ra to decrease to 2.00 % of its initial value?

asked by sierra on April 7, 2016
53. Chemistry

Show the half equations at the anode and cathode for an electrolysis of concentrated magnesium chloride solution using inert electrode

asked by Eddie on May 18, 2014
54. Geomentry

What is the converse of the theorem statement: The segment connecting the midpoints of two sides of a triangle is parallel to the third side and is half as long.

asked by Mack on April 3, 2007
55. Chemistry

Balance? Cr2O7^2- + C2H4O yields C2H4O2 + Cr^3+ (When I say ^ a number followed by a plus or minus that's the charge) Half-reaction method needed.

asked by Alex on October 11, 2010
56. Physics

A cyclist moving on a corcular track of radius 40m completes half a revolution in 40 sec. Its average velocity is nearly

asked by Khilin on July 24, 2016
57. Chemistry

The half-life of hafnium-156 is 0.025 s. how long will it take a 560 g sample to decay to one-fourth it's original mass?

asked by Jacob on December 11, 2012
58. chemistry

balance half equations in basic solution ClO3- to ClO4- Zn to zn2+ BrO3- to Br- IO3- to I2 Sn2+ to Sn4+

asked by roxy on July 26, 2013
59. science

2. You are on the London Eye observational wheel, which is 135 m tall and rotates once every half-hour. What is your velocity (speed and direction)?

asked by Anonymous on July 18, 2010
60. Chemistry

1. Balance the following half reactions in basic solution. ClO3- (aq) ¨ ClO4- (aq) Zn (s) ¨ Zn2+ (aq) BrO3- (aq) ¨ Br- (aq) IO3- (aq) ¨ I2 (s) Sn2+ ¨ Sn4+

asked by Jenny on July 26, 2013
61. Marie Ernestine

Math/Science A car starts from rest and moves at the speed of 30 kph after half an hour. What is the cars acceleration?

asked by Jack on November 11, 2015
62. CHEMISTRY

BALANCE THE REDOX REACTION USING HALF CELL METHOD IN AN ACIDIC MEDIUM CHCl3 + MnO4- = Cl2 + CO2 + Mn+2

asked by Maria on September 15, 2016
63. Civics

What portion of the Congress or the states must support proposing an amendment to the Constitution for consideration? One-half Three-fifths One-fourth Two-thirds

asked by Ava on May 15, 2015
64. Chemistry

Using the following portion of the activity series for oxidation half-reactions, determine which element(s) can react with an acid to produce H2 gas. Co(s) → Co^2+ (aq) + 2e- Ni(s) → Ni^2+ (aq) + 2e − Sn(s) → Sn^2+(aq) + 2e - H2 (g) → 2H+ (aq) +

asked by anon on March 5, 2017
65. physics

If two wires P and O each of the same length and same material,are connected in parallel to a battery. The diameter of P is half that of Q. What fraction of the total current passes through P?(a)0.2(b)0.25(c)0.33(d)0.5

asked by Roy on September 24, 2013
66. Math

I need help writing the rule. I thought would be just y=kx Earning \$4.23 for each half hour rate that i work. How much money do i earn during a given amount of time?

asked by Stacy on August 26, 2018
67. physics

an object weighs 10N on earth .what is the objects weight on a planet one tenth the earths mass and one half its radius?

asked by Kat on July 12, 2013
68. College Algebra

A company that bought a machine for \$30,000 wants to depreciate its entire value equally over the next ten years. Write an equation that represents the machine's value, v, in terms of the number of years that have passed since the machines purchase, t.

asked by Haley on November 20, 2013

I need to prepare a financial overview of my global venture and include a chart that represents the exchange risk for my global operation I'm sort of lost regarding how to start this and what the chart should look like. Can you provide me with some

asked by kay on June 27, 2009
70. Algebra 2

Can someone please help me do the follow problem... ...The cost (in dollars) of producing x sneakers in a factory is given by c(x)=60x+750. The number of sneakers produced in (t) hours is given by x(t)=50t. Fund c(x(t)). Evaluate c(x(5)) and explain what

asked by Steph on December 16, 2014
71. government

which statement about the senate is true? a. it ahs two members from each state b. its members are chosen by state legislatures c. each member represents one congressional district d. seats are apportioned among the states according to their populations d,

asked by jere on December 27, 2007
72. Algebra

P dollars is invested at annual interest rate r for 1year If the interest is compounded semiannually then the polynomial P(1+r/2)^2 represents the value of the investment after 1 year. rewrite the expressions without parentheses evaluate the polynomial if

asked by Tracy on October 28, 2013
73. Polynomials

P dollars is invested at annual interest rate r for 1year If the interest is compounded semiannually then the polynomial P(1+r/2)^2 represents the value of the investment after 1 year. rewrite the expressions without parentheses evaluate the polynomial if

asked by Tracy on October 28, 2013
74. Calculus

Evaluate the Riemann sum for (x) = x3 − 6x, for 0 ≤ x ≤ 3 with six subintervals, taking the sample points, xi, to be the right endpoint of each interval. Give three decimal places in your answer and explain, using a graph of f(x), what the Riemann

asked by nan on March 10, 2016
75. Science

if the chemical equation is CaCO3(s) + 2HCl(aq) > CaCl2(aq) + H2O(l) +CO2(g) and represents the reaction of an antacid, CaCO3, with a acid,HCl. why might someone using this antacid experience discomfort due to gas pains?

asked by Gana on March 7, 2012
76. mark check my work algebra

a cartoonist uses the function below to calculate the net profit he earns from sellings his drawings.In the function, d represents the number of drawings he sells. N(d)= 30(d)-\$500...what is domain of N(d)? is the answer all non negative real numbers?

asked by mark on October 25, 2017
77. chemistry

if the chemical equation is CaCO3(s) + 2HCl(aq) > CaCl2(aq) + H2O(l) +CO2(g) and represents the reaction of an antacid, CaCO3, with a acid,HCl. why might someone using this antacid experience discomfort due to gas pains?

asked by Kaila(: on December 12, 2010

Damon had answer, but i just want to see if you'll explain it differently... The population of a town P(t)is modelled by the function P(t)=6t^2+110t+3000, where t is time in years. Note t=0 represents the years 2000. When will the population reach 6000?

asked by Nina on November 17, 2012
79. chemistry

Which of the following chemical reactions represents a neutralization reaction? A. CH4 + 2O2 CO2 + H2O B. HCl + NaOH H2O + NaCl C. NH3 + H2O NH4++ OH- D. CH3COOH + H2O CH3COO- + H3O+

asked by jessie on September 12, 2016
80. Pre Calculas

If you deposit \$5,000 in an account that pays 5% interest compounded annually, how much money will you have in your account at the end of 15 years? Write an exponential function that represents this situation. I got 1,500,000 but im not sure if i did it

asked by Ryan on November 25, 2015
81. Earth's Dynamic Atmosphere

What is the mainstream unit of measuring air pressure? A. Inches of mercury B. PSI C. Pounds per square foot D. Centimeters of mercury my answer is a.

asked by Prisila on December 26, 2017
82. Trigonometry

A car with a wheel of radius 14 inches is moving with a speed of 55 mph. Find the angular speed of the automobile to the nearest mile per hour. I got 55/14

asked by Joe Smith on February 12, 2013
83. World History

what would we need to make a pirate ship that is at least 6x12 inches I know Popsicle sticks, hot glue gun, what else?? I also need to make a compass, caravel, astrolabe

asked by Reina Bonilla on December 8, 2015
84. Math - repost for Ocean

Which special version of the Pythagorean Theorem can you use to find the length of any squares diagonal, d, using only the length of its side, 12 inches. Please help been struggling with this for a long time

asked by Ms. Sue on October 16, 2018
85. statistics

Varsity team try out. Assume the distribution of heights to be normal w/a mean of 64inches & standard deviation of 4 inches. only 15 students passed. how many students joined the try out?

asked by mike on February 22, 2012
86. Basic electrical engineering

The average velocity of the electrons in a conductor carrying a current of 65.5 amp is 0.0153 inches per sec.what is the cross-sectional area of the conductor.

asked by Kenzo on July 1, 2015
87. math

Devon's bike has wheels that are 27 inches in diameter. After the front wheel picks up a tack, he rolls another 100 ft and stops. How far above the ground is the tack?

asked by Lynn on October 25, 2010
88. math

How long is the side of a square picture that can fit inside a circular picture frame that has a diameter of 8 inches? Hint: Pythagorean Theorem

asked by jr on June 19, 2010
89. geometry

you are given one sheet of computer paper (8.5x11 inches). if you were to make two different cylinders with the paper (hot dog and hamburger style), which volume is greater?

asked by Arielle on April 25, 2016
90. science

deltaL= L * coeff thermal expansion Al * delta Temp What is the linear expansion for 1 Deg F change in a piect of aluminum that is 1.9 inches long?

asked by bobpursley on January 16, 2007
91. math

Use the function V(T) = 18T2. A basketball player has a vertical leap of 38.5 inches. What is their hang time to the nearest hundredth of a second? Hint: T is your time in seconds.

asked by chelsea on January 23, 2012
92. math

a piece of fabric is cut into 12 equal lengths with 3 inches left over. Define a variable, and write an expression for the length or the original piece.

asked by pedro on September 29, 2011
93. Math

A box in the shape of a rectangular prism has a volume of 56 cubic inches. If the length of each side is multiplied by 2, what will be the approximate voume of the resulting box?

asked by Alyssa on August 25, 2011
94. Math

A can containing 3 tennis balls has a volume of 128/9pi cubic inches. If the height of the cylinder is 8in., what is the diameter of each tennis ball. Please explain how to do this.

asked by Katie on January 21, 2016
95. calculus

A right triangle with hypotenuse 5 inches is revolved around one of its legs to generate a right circular cone. Find the radius and height of the greatest volume cone.

asked by jj snoke on November 6, 2011
96. Solid Mensuration

A spherical wooden ball 1 ft in diameter is used as a float for a boat. If the ball sinks to a depth of 7 inches, find the area of the wetted surface.

asked by G on April 3, 2013
97. English Poetry(response to writeacher)

The theme is the theme is thoughts of elderly? And that there is only one life to live so live it well? This poem seems confusing.. it is either really easy and literal or metaphoric.. I need to write a paper on the atmosphere of this poem and I think the

asked by Bethany on November 30, 2014
98. Science

I not sure what formula to use for KE or how to find the mass for the equation. Water is flowing through a 2-inch diameter pipe with a velocity of 3 ft/s. Part A What is the kinetic energy of the water in (ft)(lbf)/(lbm)? (lbf) pound force (lbm) pound mass

asked by Angel on August 25, 2012
99. math

Three forces act on a hockey pick as it slides across the ice; the normal force N represents the force the ice exerts upward on the puck and is given by N= , the gravitational force G represents the downward force of gravity on the puck and is given by G =

asked by Ryan on May 6, 2013
100. Algebra 1

Which of the following equations best represents the function for the situation "an initial population (P) of 1,400 people decreasing by 5% per year (x)"? p=1,400-5x p=1,400(0.05)^x p=1,400(0.95)^x p=1,400/5x

asked by Jamie Ciacico on August 14, 2015