Friday

July 29, 2016
Number of results: 120,114

**Math (URGENT)**

solve for x, 0 ”Ü x < 360 tan2x+1=0 My answers: 22.5, 157.5, 202.5, 337.5 Textbook: 67.5, 157.5, 247.5, 337.5 I don't understand. Am I wrong? Thanks for your help.
*December 16, 2011 by John*

**physics**

A 16.3 kg block is dragged over a rough, horizontal surface by a constant force of 157 N acting at an angle of 35 degree above the horizontal. Find the work done by the 157 N force.
*February 24, 2012 by Anonymous*

**Math**

Find the five-number summary of the following set of numbers. 337, 248, 157, 388, 248, 451, 271, 225, 310 First sort... 157,225,248,271,310,337,388,451. the minimum = 157 the minimum = =271 the median = (271+310)/2= 290.5 the upper quartile= can you please tell me if this ...
*December 1, 2008 by Joanne*

**Algebra**

You want to buy 8 books for $19.68 each, estimate the total cost show your work. I did 19.68 x 8 and got 157.44 then rounded the answer and got 157 am I right? Or The second time I tried I estimated 19.68 and got 20 so then I did 20 x 8 and got 160 Is this right?
*June 5, 2015 by Anonymous*

**Trigonometry**

Am I doing something wrong? I have to use the Law of Consines with the following numbers: a=30, b=15, c=17. I tried to find the angle a, since a is the longest side. Cos A=(15^2+17^2-30^2)/(2x17x15)=-.7568 The inverse being 139 degrees. But when I multiply 15, the measure of b...
*January 19, 2010 by Laurianne*

**MATH 157**

X^2 + 6 = -8x..........Isn't this quadratic?
*September 20, 2009 by ggift*

**math**

what % of $720.00 equals $157.00
*June 3, 2011 by Anonymous*

**Math 157**

Find the prime factorization of 33^5*39*25^12 Thanks!
*July 31, 2015 by Kim*

**math 157**

If P(A)= 1/2, P(B)= 1/6 and P(A and B)= 1/2, what can you say about P(A and B)? I dont understand?
*January 8, 2010 by Rmz*

**math 157**

Is 3x^2=5 a linear, quadratic or exponential function? and how
*January 10, 2010 by nicole*

**math**

Find the reason for the geometric progression in which a1 = 1, n = 3, S3 = 157
*June 10, 2014 by Dany*

**MATH 157**

How many different types of semi irregular tessellations are there?
*September 2, 2009 by ggift*

**MATH 157**

When solving this linear equation, -8.3 = X + 6.1 don't I take 6.1 from both sides and get x = 2.2?
*September 20, 2009 by ggift*

**math 157**

Suppose that P(A)= x. The probability of the complementary event B is 0.7, what is the value of x. would it be 0.3
*January 8, 2010 by Rmz*

**math 157**

An experiment has three possible outcomes: A, B, and C. If P(A)= P(B)and P(C)= 2P(A), what is the probability of each? Can anyone help me get started?
*January 8, 2010 by Rmz*

**Math 157**

How many rectangles will fit about a point when tessellating the plane? How do you know?
*April 9, 2010 by Jamie*

**Math 157 **

how many polygon arrangements does a semi-regular tessellation have?
*July 3, 2010 by Jenna*

**MATH 157**

Wouldn't you use milligrams to express the mass of a flower petal?
*September 19, 2009 by ggift*

**Math 157**

I am not sure how to do this problem Convert the units. 15 yd2 = _____ ft2
*January 20, 2011 by Rena*

**Math 157**

when a coin is tossed 4 times, 16 equally likely outcomes are possible, what are they
*March 12, 2011 by Anonymous*

**MATH 157**

Can anyone please tell me the number of degrees in the point angle of a {9/2} star polygon?
*September 2, 2009 by ggift*

**MATH 157**

If an 8 inch wide rectangle is to approach the golden ratio, what should its length be?
*September 19, 2009 by ggift*

**math 157**

question #1 provide an approiate response. Write the next equation in the pattern 1+1=2 1+1+2=4 1+1+2+3=7 1+1+2+3+5=12
*July 18, 2010 by Anonymous*

**math 157**

Consider the experiment involving rolling a single die once. What is P(even and Prime)? I do not know how to start this can anyone help?
*January 8, 2010 by Rmz*

**MATH-157**

Consider the experiment of rolling a single die. Find the probability of the event described. What is the P(odd and prime)? A) 1/6 B) 1/2 C) 2/3 D) 1/3
*March 29, 2010 by Tyga*

**Math 157**

What are the odds in favor of drawing a spade and a heart without replacement from an ordinary deck of 52 playing cards?
*March 31, 2010 by Tyga*

**MATH 157**

Ok, I got another question: when trying to find the distance between the two points (4,3) and (9,15) & using the formula wouldn't the answer be 13?
*September 20, 2009 by ggift*

**math 157**

What are the odds in favor of drawing a spade and a heart? Would the odds be 2
*January 17, 2010 by Rmz*

**MATH 157**

would it be best to have a refrigerator set at 29 degrees or 43.5 degrees celcius?
*September 2, 2009 by ggift*

**math 157**

A receipt contains 3 ingredients, In how many different orders can all the ingredients be added.
*July 18, 2010 by Anonymous*

**math 157**

Give the equation of the line that is perpendicular to the line y = x + 4 and passes through point (0, -1)
*October 11, 2010 by len*

**MATH 157**

what is the ratio of the surface areas for a pair of similar cylinders when the ratio of the heights is 1:3? i don't understand this at all!!
*September 2, 2009 by ggift*

**MATH 157**

A spherical tree ornament is to be painted in bright colors. If the ornament has a diameter of 4 cm, how much paint is needed?
*August 18, 2009 by Maria*

**Math-Trigonometry**

Use the half-angle formulas to find the exact values. Cosine 165 degrees, Sine 157 degrees 30' and tan pi/8
*April 22, 2012 by Neicey*

**math 157**

How many three-symbol codes (letter, letter, number) can be made from the letters S, P, Y and one digit fro the set {0, 1, 2,...9} without repitition? What and how do I get started?
*January 8, 2010 by Rmz*

**Math 157**

Help please! Write an expression for the cost c, if a printer charges $1.75 for binding, plus 5 cents for p pages for copies of a community groups annual report Thanks I have a mental block with these problems.
*July 8, 2015 by Bella*

**CHM 157**

calculate the lattice energy of CaO
*April 8, 2008 by Anonymous*

**MTH 157**

Given that P(A)=2/9 what are the odds in favor of A occuring?
*May 30, 2010 by Erin*

**statistics**

A final exam in Math 157 is normally distributed and has a mean of 75 with a standard deviation of 12. If 36 students are randomly selected, find the probability that the mean of their test scores is greater than 70.
*June 22, 2011 by Jessica*

**math**

For the car loan described, give the following information. A newspaper advertisement offers a $4,500 used car for nothing down and 36 easy monthly payments of $157.62. (a) amount to be paid
*August 5, 2014 by mary*

**Math 157**

A ship carries exactly 10 different signal flags. If each possible combination and ordering of 4 of these flags connotes a specific message, how many signals can be sent with these flags, taken 4 at a time?
*April 1, 2010 by Ty*

**Math**

Find the linear speed in feet per minute of a seat on the Ferris wheel. v= r.w How do I find out "w"? r= 25 ft. arc= 40 ft. angle= 58° 1 revolution= 157 ft./revolution
*November 14, 2012 by Melia*

**math\**

Michael invested a certain amount of money at 3% interest and $750 more than that amount at 5%. His total yearly interest was $157.50. How much did he invest at each rate?
*March 28, 2016 by winsome*

**math 157**

For the data in the following table, select a type of display and describe the steps that you would take in developing it to show the relationship between age and s/1000 people from car s: Age 114 1524 2544 4564 65 Death 4.6 6.2 16.6 8.8 15.
*June 11, 2010 by Deidre *

**math 157**

three cards are drawn without replacement from an ordinary deck of 52 playing cards. What is the pronanility that the third card is a spade if the first two cards were not spades? How do I even start this?
*January 8, 2010 by Rmz*

**math 157**

Assume that a researcher randomly selects 14 newborn babies and counts the number of girls selected, x. The probabilities corresponding to the 14 possible values of x are summarized in the given table. Answer the question using the table.
*April 7, 2010 by Anonymous*

**MATH 157**

I am looking everywhere.....in my notes and in my chapter. What would the other endpoint of a line segment with the given midpoint and one endpoint? ENDPOINT (0,0) MIDPOINT (2, -8)
*September 20, 2009 by ggift*

**Chemistry**

Hi, I posted a question yesterday : A compound contains only carbon, hydrogen, nitrogen, and oxygen. Combustion of 0.157 of the compound produced 0.213g CO2 and 0.0310 g H20. In another experiment, it is found that 0.103g of the compound produces 0.0230 g NH3. What is the ...
*April 15, 2010 by Anonymous*

**Math-157**

A class elects two officers, a president and a secretary/ treasurer, from its 12 members. How many different ways can these two offices be filled from the members of the class?
*April 1, 2010 by P-Dub*

**math**

A number made up of the digits 4,5,and 6 is subtracted from a number made up of the digits of 0,2,8. The difference ia 157. Write out the entire problem?
*October 18, 2012 by AA*

**Math 157**

Copy each equation in Exercises 3133. Replace the boldface italic letter with a number that shows the relationship indicated in the table. Then copy each table and complete it by using the corresponding equation. 32. y = -x + b x y 1 0 2 -1 8 -7 10 ? 20 ? 40 ?
*January 24, 2011 by Rena*

**math 157**

If a single letter is drawn from the set {m, a, t, h}, what is the probability that the letter drawn is a member of the set {m, a, t, h, e, i, c, s}? would it be 4/8 which then equals to 1/2
*January 7, 2010 by Rmz*

**Biology & Math**

Using the following data calculate the number of neutrophils per ml. Total WBC count: 6.3 x 10^6/ml Total cells counted: 157 Neutrophils counted: 53 If possible could you show how to work it out to, thanks :)
*December 15, 2009 by Jess P*

**Math**

An adult crocodile weighs up to 2200 lbs. If a young crocodile weighs 157 lbs, how many pounds might it be expected to gain in it's lifetime? How do you write a word sentence that describes the inequality situation?
*October 30, 2010 by Sally*

**Math 157**

assume that a reseacher randomly selected 14 new born babies and counts the number of girls selected x. the probability corresponding to the 14 possible values of x. find the probability of selecting exactly 8 girls.
*March 12, 2011 by Anonymous*

**Math**

issan deposited 2500 into a savings account that pays 4.5% simple interest per year. How much interest does she earn per year? A-1225.00 B-472.50** C-157.50 D-4725.00 I think its C
*January 12, 2016 by Jazmine Gonzales*

**Physics**

Carbon dioxide forms into a solid (dry ice) at approximately -157°F. What temperature in degrees Celsius does this correspond to?
*December 19, 2010 by Jesse*

**statistics**

The following gives the height of 100 men in centimeters. 153 162 168 154 151 168 162 153 161 167 157 154 165 156 163 165 160 171 170 173 164 158 163 155 167 162 168 153 161 166 163 162 163 163 163 164 165 163 162 162 163 161 162 162 158 162 167 158 169 168 168 156 160 158 169...
*October 2, 2011 by shelly*

**math 157**

The following are prices (in dollars) 2004 automobiles, as listed in a sale ad in the automobile section of the newspaper: 12,997 14,891 18,666 21,799 17,495 17,266 21,517 14,414 14,257 15,634 15,734 27,825 28,015 19,514 14,182 19,135 19,555 12,333 7,700 9,898
*June 11, 2010 by Deidre *

**Math 157**

The game of dots is played by rolling a fair die and receiving $1 for each dot showing on the top face of the die. What cost should be set for each roll if the game is to be considered a fair game?
*April 1, 2010 by Moonpie_17*

**geometry**

if each angle in a regular polygon is 157.5 degrees, how many sides does the polygon have?
*September 23, 2009 by Anonymous*

**mth 157**

Drawing one slip, what is P (slip contains a vowel)?
*February 11, 2010 by tom*

**Astronomy**

In the equation 4pi^2/G/p^2 times a^3, what is the value of 4pi^2? Is it 39.47? or 157.913
*October 2, 2011 by Rebecca*

**Chem 1510**

A urine sample has a mass of 157 g and a density of 1.030 g/mL. What is the volume of this sample?
*January 16, 2014 by Anonymous*

**Chem 1510**

A urine sample has a mass of 157 g and a density of 1.030 g/mL. What is the volume of this sample?
*January 16, 2014 by Anonymous*

**Chem 1510**

A urine sample has a mass of 157 g and a density of 1.030 g/mL. What is the volume of this sample?
*January 16, 2014 by Anonymous*

**Math 157**

five numbers are to be picked, without repetition from 44 numbers to determine the winner of the fortune five game in the state lottery. If the order of the numbers is insignificant how many different ways can a winning quintuple be seleted? what is the probability of winning?
*March 10, 2010 by Sulynn*

**MATH 157**

List the elements in the sample space of this experiment: a 6 sided die is rolled. the sides contain the numbers 1,2,3,4,5,6. list the sample space of rolling one die.
*September 19, 2009 by ggift*

**Math 157**

A group of 10 students consists of 3 girls and 7 boys. How many ways can the students be arranged from left to right if the first 3 students are girls and the remaining students are all boys?
*January 5, 2011 by Rena *

**Math**

john has 28 marbles and sue had 157 marbles, after each added the same amount, sue had 4 times more than john. how many did they each add?
*March 10, 2016 by Greg*

**Math 157**

A 7 inch pizza cost $8 and a 14 inch pizza costs $20. Tommy says the smaller pizza is a better buy because the larger pizza is twice as big and more than twice as expensive. Do you agree with his reasoning? Explain why or why not.
*March 28, 2010 by Lori*

**math 157**

Consider the experiment of selecting a card from an ordinary deck of 52 playing cards and determine the probibility of the stated event. A. A nonface card or a 7 is drawn B. A card that is not a king and not a spade is drawn. For A a nonface card is 10/13 and for a 7 it is 1/...
*January 8, 2010 by Rmz*

**Bio 157**

Be able to tell the ovarian, uterine and hormonal changes which occur during each stage of the menstrual cycle. I am not sure what answer she is looking for. Any Help would be great.
*October 27, 2008 by jennifer*

**physics**

Find the rotational kinetic energy and angular momentum about its axis of the earth due to its daily rotation. Let ME = 6 x 1024 kg, RE = 6.4 x 106 m and łE = 1.157 x 10-5 rev/sec.
*December 4, 2010 by Qay*

**physics**

Find the rotational kinetic energy and angular momentum about its axis of the earth due to its daily rotation. Let ME = 6 x 1024 kg, RE = 6.4 x 106 m and We = 1.157 x 10-5 rev/sec.
*December 4, 2010 by qay*

**Physics check**

If an atom has 104 electrons, 157 neutrons, and 104 protons, what is the atomic number of the nucleus? have no idea
*April 17, 2008 by Bev*

**physics**

f Beth exerts a force of 157 . 9 N on the rope, what is the magnitude of the upward component of the force acting on the stake? Answer in units of N
*October 29, 2014 by Anonymous*

**math**

A circular swimming pool has radius of 15 feet. The family that owns the pool wants to erect a circular fence that is 5 feet away from the pool. Which is the closest to the circumference of the fence they will need? A. 94.2 ft B. 125.6 ft C. 157 ft D. 188.4 ft
*November 14, 2013 by Gabriella*

**physics for Science**

2) You take the following measurements for the distance a toy car travels in 10 seconds during each 5 trials: 157cm, 175cm, 162cm, 168cm, 187cm. What are the relative uncertainties of the distance and time measurements? Which measurement is the most uncertain? · (157 + 175 + ...
*September 6, 2015 by Alessandra Romano*

**Mat 157**

How many three-symbol codes (letter-letter-number) can be made from the letters, S,P,Y, and one digit from the set {0,1,2,...,9] without repetition?
*February 1, 2011 by Susie*

**statistical analysis**

How would I run a simple regress calculation in Excel if my independent variable was 149.30 and my dependent bariable was 157.7 Appreciate any help. One point does not yield any regression.
*August 16, 2007 by Jo*

**math 157**

in a subdivision, 67 perecent of the homes have detached garages, 32 perecent have a patio, and 13 percent have both. What is the probability that a house has a patio if you know that it has a detached garage? would it be 32/67?
*January 9, 2010 by Rmz*

**math 157**

in a subdivision, 67 perecent of the homes have detached garages, 32 perecent have a patio, and 13 percent have both. What is the probability that a house has a patio if you know that it has a detached garage? would it be 32/67?
*January 9, 2010 by Rmz*

**Math**

The circumference of a circular stage is 157 feet. If Chris paints the stage at a rate of 400 square feet per hour, how long would it take to the nearest hour, for Chris to paint the entire stage?
*March 17, 2016 by Sidney*

**math 157**

at the first tri city meeting where 8 people are from twon A 7 people are from town B and 5 people are from town C. If the council consists of 5 people find the probability that 3 people are from town A and 2 people are from town B. How do i do this
*October 10, 2010 by Jay*

**math 157**

at the first tri city meeting where 8 people are from twon A 7 people are from town B and 5 people are from town C. If the council consists of 5 people find the probability that 3 people are from town A and 2 people are from town B. How do i do this
*October 10, 2010 by Jay*

**Math 157**

Based on meteorological records, the probability it will snow in a certain town on January 1st is 0.480. Find the probability that in a given year it will not snow on January 1st in that town? Is the answer 0.520 ?
*January 17, 2010 by Christy*

**MATH 157**

On a TV game show, the contestant is asked to select a door and then is rewarded with the prize behind the door selected. If the doors can be selected with equal probability, what is the expected value of the selection if the three doors have behind them a $40,000 foreign car...
*April 1, 2010 by Tyga*

**math**

The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 165 and a variance of 9. The material is considered defective if the breaking strength is less than 157.8 pounds. What is the probability that a single, randomly selected piece...
*December 9, 2014 by libby*

**Geometry**

A circle has a center at (8,2). The point is (3,7) is on the circle. What is the area of the circle to the nearest tenth of a square unit? A. 22.2 B. 44.4 C. 157.1 D. 314.2 (I've been stuck on this question for a while) thanks!!
*September 15, 2015 by katy*

**physics**

On a banked race track, the smallest circular path on which cars can move has a radius r1 = 103 m, while the largest has a radius r2 = 157 m, as the drawing illustrates. The height of the outer wall is 18 m.
*September 10, 2012 by vic*

**Math**

If a famlies total living expenses are 63,000 a year. After the death of the insured, the total family income would be 55,000. How much life insurance is required to cover the dependents icome shortfall, if prevailing interest rate 4%. I am not sure that the answer I came up ...
*November 8, 2008 by Debbie*

**mat 157**

Suppose that a natural number from 1 through 9 is selected at random. What is the probabiliy that the number selected is odd if you know that it is prime?
*February 1, 2011 by Susie*

**mat 157**

Suppose that a natural number from 1 through 9 is selected at random. What is the probabiliy that the number selected is odd if you know that it is prime?
*February 1, 2011 by Susie*

**mat 157**

Suppose that a natural number from 1 through 9 is selected at random. What is the probabiliy that the number selected is odd if you know that it is prime?
*February 1, 2011 by Susie*

**mat 157**

Suppose that a natural number from 1 through 9 is selected at random. What is the probabiliy that the number selected is odd if you know that it is prime?
*February 1, 2011 by Susie*

**chemistry**

the vapor pressure of pure water at 60 c is 157 mmHg. what is the vapor pressure of this solution at the same temperature, in mm Hg?
*August 25, 2014 by angel*

**pre cal**

Find the angle between the vectors u and v if u = (-1,4) v = (3,-4) a. 155.93 b. 158.58 c. 158.13 d. 155.24 e. 157.17
*July 14, 2016 by anna*

**Chemistry**

How many grams of water are needed to dissolve 27.8g of NH4NO3 (80.0 g/mol) in order to prepare a 0.452 m (molal) solution? 27.8g / 80g/mol X 0.452 = 0.157 Is this correct?
*February 12, 2012 by Hannah*

**Chemistry**

Assuming that the smallest measurable wavelength in an experiment is 0.330 fm (femtometers), what is the maximum mass of an object traveling at 157 m·s^1 for which the de Broglie wavelength is observable? mass = ? kg
*October 28, 2012 by Bill*