Questions Asked on
February 20, 2017

biology
A bacterium has a genome size of 6.0 X 106 base pairs. There is one Origin of Replication (ORI) and each DNA polymerase catalyzes the addition of 1,000 nucleotides/second. How much time is needed to replicate the entire genome?
asked by sara 
accounting
Given the cost of direct materials of $500 and the labour rate of $20 per hour. Assuming the predetermined overhead rate is $5 per hour and the actual hours is 50 hours  please calculate the total cost of this job?
asked by vivian 
Algebra
Ratio reduced to lowest terms 139 hours to 2 days
asked by Faith 
english 101
which word or phrase is wrong? Her mother asked her what would she do after she graduated from college. herwouldshe dofrom
asked by engl1301 
Chemistry
how many chloride ions are in 0.28 mol MgCl2?
asked by Ness 
psychology
Dr. Zimand is studying testosterone levels and their influence on aggression in adult males. It is likely that Dr. Zimand specializes in the ____________ approach to psychology.
asked by Anonymous 
Science
density of wood that is 20 cm below water and 60 cm above water
asked by Anonymous 
Thermal physics
Explain thermal physics in details
asked by Lukonde margret 
chemistry
empirical formula for K 60.0% C 18.5% N 21.5% and P 7.5% I 92.5%
asked by Mar 
mathmatics
A man has Rs 10000. he lost 2/5 of his money and he spent 1/4 of the reamainder. find the reamaining money with him now.
asked by Anonymous 
value
liquidity ratio
asked by value 
value
the 3rd term of a gp is 63 and 5th term is 567.find the sum of the 6th term of the progression
asked by value 
math
Mrs.Santiago is 36 yrs. old and her son is 4 years old. When will the mother be thrice as old as her son?
asked by charlene 
Maths
the cost of ploughing a square field at ₹13.50 per meter is ₹5400 find the cost of fencing the field at ₹28.50 per meter
asked by Nishta 
Production and Operation management...Pls Help me
Explain,with examples,how the operation function set target relating to quality or meeting planned production schedules.
asked by Ibra 
math
1]find two possible values for the geometric mean of –1/4 and –4 [2]form a G.P that has two geometric means between (a)1029 and –3 (b) 2/k and 1/4k
asked by kel 
Math
Find area of rectangle whose length is 3 cm and 1 diagnal is 5 cm
asked by Pooja 
Chemistry
3Cu(s) + 8HNO3(aq) → 2NO(g) + 3Cu(NO3)2(aq) + 4H2O(l) If 15 g of copper metal was added to an aqueous solution containing 6.0 moles of HNO3, how many moles of NO(g) would be produced, assuming a 59.8 % yield.
asked by Raphael 
Math
How many square meter of wallpaper is required for a wall that has perimeter of 25 feet and 8 feet height
asked by Azeezat 
science
A gardener holds a hose 0.75m above the ground such that the water shoot out horizontally and hits the ground at a point 20m away.What is the speed with which the water leaves the hose?
asked by rhamlyn casis 
Physics
A stone is dropped from a hot air balloon that is rising at a constant speed of 2.2 m/s. If the stone takes 4.8 seconds to reach the ground then … a) What was the height of the balloon at the moment the stone was released? b) What is the height of the
asked by Jimbo 
Math
the age of the father is square of the age of his daughter . five years hence the fathers is three times as old as daughter .write the quadratic equation
asked by Ramesh 
Chemistry
A 5.0×101 kg sample of water absorbs 324 kJ of heat. If the water was initially at 22.2 ∘C, what is its final temperature?
asked by Carlos 
Math
A large hose will fill a pool in 40 minutes while it takes a smaller hose 60 minutes to fill the same pool. The same pool requires 80 minutes to drain if the drain is open. Suppose one day both hoses are turned on, but by accident the drain was left open.
asked by Charlene 
Science
How many moles of mercury will be produced by electrolyzing 1.0M Hg(NO3)2 solution with a current 2.00A for 2 hours.
asked by Neha 
math
the angle of elevation of the top of the building from a point 30 meters away from the building is 65 degrees
asked by Daniela 
value
show that the sum of nterm of the progression is logx,logx^2,logx^3,logx^4is n(n+1)/2 logx
asked by value 
math
A hiker is 400 meters away from the base of the radio tower. The angle of elevation to the top of the tower is 46 degrees . How high is the tower?
asked by Daniela 
algebra
Ms. Allison drew a boxandwhisker plot to represent her students scores on a midterm test. Lowest value=44 Lower quartile=47 Median=72 Upper quartile=81 Highest value=96 Jason received 47 on the test. How does Jason's score compare to his classmates? A.
asked by faith 
Health & Physical Education
Hello, I REALLLYYY need help with my Health and physical ed quiz. I have ONE question that i need help answering. please and thank you. 1) Your doctor tells you that you and your twin sister have the same basal metabolism rate (BMR). You live independent
asked by Ms. Lonely 
Vocabulary
Mary gulps down a cup of tea quickly. I am not sure whether use present or past tense. Please help to check. Thanks & regards,
asked by deyond ng 
math
An observer in a lighthouse 48.8 m above sea level saw two vessels moving directly towards the lighthouse. He observed that the angles of depression are 42 and 35 degrees. Find the distance between the two vessels, assuming that they are coming from the
asked by Daniela 
Esol
in which sentences fast used as adverb? The cars on the overpass moved fast the fast car drove over bridgethe battle couldn’t hit the fast pitchthe clock is 10 minutes fast  my answer=The cars on the overpass moved fast
asked by Victoria 
Maths
If a farmer has 90 animals in a field.4/9 are sheep,1/3 are cows,1/10 are horses and the rest are pigs.How many pigs are there?
asked by Billy 
math
A diagonal of a parallelogram forms 25° and 35° angles with the sides of a parallelogram. Find the angles of the parallelogram.
asked by annie 
math
A 12meter high post casts a 19meter shadow. Find the angle of elevation to the sun. what is/are given? formula used solution
asked by Daniela 
Math
Ms. Allison drew a boxandwhisker plot to represent her students scores on a midterm test. Lowest value=44 Lower quartile=47 Median=72 Upper quartile=81 Highest value=96 Jason received 47 on the test. How does Jason's score compare to his classmates? A.
asked by Help! 
Math
Problem: Tad draws three cards at random, without replacement, from a deck of ten cards numbered 1 through 10. What is the probability that no two of the cards drawn have numbers that differ by 1? Express your answer as a common fraction. Scott's solution:
asked by Nikhil 
Physics
A 71 kg skydiver jumps out of a plane at an altitude of 1370m. She reaches terminal velocity of 68m/s. She opens the parachute at an altitude of 328m, and lands with a speed of 2.8m/s. a)How much (negative) work is done by air resistance before she opens
asked by Helen 
college chemistry
Calculate how much carbon you use in a year, by considering how much driving you do a year. If I use 500 gal per year, what is my answer? balanced combustion equation which shows how the main component in gasoline reacts in your car and produces carbon
asked by Alex 
College Algebra
For fx=6x5 and gx=3x^24 find the following (fog)(x) Having problems understanding (gof(x)=g(f(x))= 3(f(x))^24 3(6x5)^24 (36x925)4
asked by Lisa 
Algebra  PLEASE HELP!
Can you PLEASE help me with this problem? I do not understand... The area of a triangle can be found by using the formula A=1/2bh. The area of the triangle can be represented by the expression 17.5x2^  138.5x  27. The triangle's base length is greater
asked by Leroy 
geomatry
Prove algebraically that the ratio of perimeters of two triangles is 1:4 if the ratio of their corresponding sides is 1:4
asked by ann 
geometry
write an indirect proof to prove that if there is a line and a point not on a line, then exactly one plane contains them
asked by ann 
physics
The Earth is 150 million km from the sun. It completes one orbit in a period of approximately 365.25 days. Calculate the orbital speed of Earth in km/hour. please helpppp
asked by loral 
math
The ratio of the units digit to the tens digit is onehalf. The tens digit is two more than the units digit.Find the number.
asked by kitty 
Algebra
I don't understand how to do this problem: A savings account is started with an initial deposit of $500. The account earns 1.5% interest compounded annually. (a) Write an equation to represent the amount of money in the account as a function of time in
asked by JustMe 
Math
A number is such that thrice its 14 less than 5 times the number.find the number
asked by Dinar basic science 
Math
my divisor is 5 I'm greater than 4 X 5 I'm less than 5 x 5 my remainder is 1 what dividend am I
asked by AJ 
Chemistry
Consider compounds trans4tertbutylcyclohexanol and 4tertbutylcyclohexanone below. Using silica gel TLC plates, which of these two compounds will have the higher Rf value when dichloromethane is the developing solvent? Why? Does it possibly have to do
asked by Lyndsay 
English
"Yet thrusting perpetually under siege. Your armed struggles for profit" What does these stanzas from On the Pulse of Morning mean? Please help me
asked by Acasia 
Math
In a two digit number the tens digit is two less than the units digit.If the digits are reversed, the sum of the reversed and the original number of 154.Find the original number.
asked by GeniusTigeress 
Math
In a book closet, mathematics books are kept in stacks of 4. If each student carries no more than one stack, what is the least number of students needed to carry books for a class of 23? Is the answer five or six students?
asked by Matt 
ELA
The Peachtree Road Race is unique as a 10K road race in three distinctive ways: it is run on the 4th of July, it has a rich tradition, and it is the most competitive 10K in the world. Which is the BEST meaning for distinctive as it is used in the selected
asked by anonamus 
Vectors
A boat is capable of 20 km/h in still water. You wish to cross the river downstream so that the angle the boat's push makes with the bank is 50 degrees. At what angle to the bank should the boat steer if the current is 8 km/h? How long will it take to
asked by John 
physics
An electron in a cathoderay tube is traveling horizontally at 2.10×109 cm/s when deflection plates give it an upward acceleration of 5.40×1017 cm/s2 .How long does it take for the electron to cover a horizontal distance of 6.30 cm ? What is its vertical
asked by sintia 
Algebra/Math
How much dry substance is there if we have 150g of 8% of a solution of this substance.
asked by GeniusTigeress 
Math
If goods to be shipped weigh 520 pounds 6ounces and the crates and packaging weigh 21pounds 9ounces what is the gross weight of the shipment?
asked by Ernestine 
physics
IP A whitecrowned sparrow flying horizontally with a speed of 1.70 m/s folds its wings and begins to drop in free fall How far does the sparrow fall after traveling a horizontal distance of 0.400 m
asked by sintia 
6th grd. MATH QUIZ HELP!!!!
Questions 1) Solve the equation 3x=3=18 a) x=7 b) x=5 c) x=3 d) x=5 THERE ARE MORE QUESTIONS!
asked by Ms. Walker 
physics
A soccer ball is kicked with a speed of 16.7 m/s at an angle of 45.0 ∘ above the horizontal.If the ball lands at the same level from which it was kicked, for what amount of time was it in the air?
asked by ana 
Physics
What happens to the location of the image when the radius of curvature changes? I think it moves farther away when the curvature increases.
asked by Anonymous 
English
"I and the Tree and the Rock were one" What does it mean that the River, tree and rock were one?
asked by Acasia 
Chemistry
Write the Kc expression for the following reaction: Fe3+ + SCN = FeSCN2+
asked by Aiyana M. 
Math Algebra
Solve algebraically using only variable: The length of a rectangle is two less than three times its width. If the area of the rectangle is 65, find the length and the width. (The area of a rectangle is equal to its length times its width.
asked by Tony 
Politics
Compare Britain's and America's government. How are they similar? How are they different? Consider things like: Who is the leader of their country or their executive? Who makes the laws in their country? How do their elections work?
asked by Lana 
Linear algebra
Let L1 be the line passing through the points Q1=(−2, 1, 1) and Q2=(−4, 4, 0) and let L2 be the line passing through the point P1=(−6, −6, 0) with direction vector →d=[9, 6, 3]T. Determine whether L1 and L2 intersect. If so, find the
asked by shana 
Algebra
Solve algebraically using one variable: Find three consecutive odd integers such that the product of the first integer and the third integer is equal to nine more than twelve times the middle integer.
asked by Russell 
Algebra
I spent hours on this and I still cant figure it out please help me: Let L1 be the line passing through the points Q1=(4, 2, −3) and Q2=(5, 5, −5). Find a value of k so the line L2 passing through the point P1 = P1(3, 7, k) with direction
asked by shana 
Science
You have been challenged to lift a weight of 200 kg from the floor.Your challenger has the same task and also lifts a 200 kg from the floor but they take longer time to do so.Who has completed more or less work?Explain.Who has used more power?Why?
asked by Susie 
physics
In a friendly game of handball, you hit the ball essentially at ground level and send it toward the wall with a speed of 17 m/s at an angle of 39 ∘ above the horizontal. How long does it take for the ball to reach the wall if it is 3.8 m away? How high
asked by ana 
physics
What is the magnitude of your total displacement if you have traveled due west with a speed of 23 m/s for 125 s , then due south at 12 m/s for 255 s ? 2sf What is the direction of your total displacement in part A.
asked by sintia 
Math
The fruit plants in my garden do not bear fruit during their first summer. The fruits are picked for the next two years and then the plants become too woody and need to be pulled up. Occasionally some of the die over winter. The last five years I had fruit
asked by Alice 
chemistry
Create balanced equation, given the two compounds in aqueous solution may react with one another. State whether or not a chemical reaction occurs. Make sure to include the state of each reactant and product. If a precipitation reaction occurs, provide the
asked by Aaron 
physics
An electron in a cathoderay tube is traveling horizontally at 2.10×109 cm/s when deflection plates give it an upward acceleration of 5.40×1017 cm/s2 . How long does it take for the electron to cover a horizontal distance of 6.30 cm ?What is its vertical
asked by sintia 
algebra
system of equations c3d=27 4d+10c=120
asked by Rocky 
Algebra
Solve algebraically using only variable: The length of a rectangle is two less than three times its width. If the area of the rectangle is 65, find the length and the width. (The area of a rectangle is equal to its length times its width.
asked by Tony 
Physics
which of the following is NOT true about the path of a cannon ball launched horizontally from the earth's surface if air resistance is neglected? a. the cannnonball has a uniform horizontal velocity b.the total velocity of the cannon ball increases as a
asked by Anonymous 
math 1
system of linear equations of substitution. a=2/b3 a=2b8
asked by Rocky 
Algebra
2.1/ x+1 4/5 = 3/10x The fraction 2.1/x+1 4/5 equals 3/10x. Find out what x equals.
asked by GeniusTigeress 
Algebra
Can you please confirm that my answer is correct to this problem? 80x2^  96x + 27 =0 I am using the quadratic formula to solve... I would put the formula here but I can't put the square root sign in here. My answer is 1.33 and 2.22 Is this correct?
asked by Lucille 
math 1
c3d=27 4d+10c=120
asked by Rocky 
History
When does the Terror end and who seizes control of france? July 27 1794 and Napolean
asked by Anonymous 
Math
If a circular railroad crossing sign has a diameter of 30in what should its areas be?
asked by A girl 
History
What was the name of the new freedom of the press newspaper created by Jean Paul Marat
asked by Anonymous 
Chemistry 101
Fe3+ and CN
asked by Siyabonga 
Esol
which of them is correct? gosh, i be ordering a v8!  gosh,i coulda had a v8!gosh, i should ordered a v 8 !gosh, i could have had a v8! my answer, gosh, i could have had a v8!
asked by Victoria 
History
Who does Robespierre round up and execute
asked by Anonymous 
physics1
What is the magnitude of your total displacement if you have traveled due west with a speed of 23 m/s for 125 s , then due south at 12 m/s for 255 s ? Express your answer using two significant figures. What is the direction of your total displacement in
asked by anonymous 
Science
1. Which of the following is an example of matter A.Leaves B.Shadows C.Light from the sun D.Sound
asked by Cookie dough 
Algebra
Solve algebraically using one variable: Find three consecutive odd integers such that the product of the first integer and the third integer is equal to nine more than twelve times the middle integer.
asked by Tony 
Math
Peanuts, walnuts, and cashews are mixed by volume in the ratio 5:3:2, to make a party snack. The number of cups of walnuts needed to make 12 cups of party mix are between: a) 1 and 2 b) 2 and 3 c) 3 and 4 d) 4 and 5
asked by Terrence 
Pre Calculus 30
I'm having a hard time understanding the fundamental counting principal and I don't even know where to start on some of the questions.Here are a few questions I'm having trouble with. 1.Andrea, Brian, Carol, David, Emmalee, Floyd, and Gloria are to stand
asked by John 
Algebra
4.5cm is 75% of
asked by GeniusTigeress 
math 1
4x+y=2 2x3y=1
asked by Rocky 
Algebra
The perimeter of a rectangle is 46 inches, and the area is 120 square inches. Find the length and width of the rectangle.
asked by Tony 
math 1
4x+y=8 2x3y=1
asked by Rocky 
physics
A car travelling at 25 m/s slams its break leaving skids marks along a distance 125 m as it comes to rest. the coefficient f friction between the tire and the road is a 5 b 2.5 c 1 2 .4 e .25 A 500N worker pulling a 500 N crate on a rope with a force of 50
asked by Anthony 
math (precalc)
Find a polynomial with integer coefficients that satisfies the given conditions. R has degree 4 and zeros 3 − 4i and 5, with 5 a zero of multiplicity 2.
asked by Kyle 
Math
The fruit plants in my garden do not bear fruit during their first summer. The fruits are picked for the next two years and then the plants become too woody and need to be pulled up. Occasionally some of the die over winter. The last five years I had fruit
asked by Alice 
Algebra Word Problem
Solve algebraically using one variable: Find three consecutive odd integers such that the product of the first integer and the third integer is equal to nine more than twelve times the middle integer.
asked by Tony 
Math
I am more than 25 and less than 28 I am an even number
asked by Itzi 
Social Studies
Would surviving the holocaust affect religion or spirituality? Why?
asked by Kylie 
chem
22.5 grams of lithium reacts with 33.5 grams of aqueous aluminum sulfate
asked by Anonymous 
Math
Kenny will invest $16,000 in an account with an annual interest rate of 5% and the interest is compounded quarterly. How much money will be in the account in 7 years? How will I set this up?
asked by Hannah 
Algebra 1
Suppose a spherical asteroid has a radius of approximately 9.0 x 10^2m. Use the formula 4/3*pi r^3 to find the approximate volume of the asteroid. 2.57 * 10^9 m^3 1.07 * 10^4 m^3 2.54 * 10^10 m^3 4.51 * 10^10 m^3 I've worked 4/3*pi*10^2 = 900 meters... but
asked by Fading 
Algebra
can you please help me with this problem: 30y2^ + 60y + 300 = 5y2^ + 120y 24 25y  60y + 324 = 0 used the quadratic equation (used the square root) x = 60 (60)2^  4(25)(324) / 50 x = 60 (3600 + 32,400)/50 x = 60 +or minus(28,800) / 50 x = 60 +
asked by Angela 
Math
Monica wants to know what she needs to get on the exam to get a certain grade in her English class. The term Mark is worth 70% of the course and exam is worth 30%. The following is the formula used to calculate her overall Mark. Course Mark = term Mark +
asked by Emma 
Algebra 1
When dividing two numbers written in exponential notation, what do you do with the exponents of 10? add subtract multiply divide I flat out do not know, can somebody please tell me what it is and why?
asked by Fading 
Algebra
Hello...can you please let me know if I worked this problem correctly: 10Z2^ + 8z  7 = 16z2^ + 48z  12 0 = 6z2^ + 30z  5 a = 6 b = 30 c = 5 x = 30 + or  (30 2^ 4(6)(5) / 12 x = 30 + 31.937 / 12 = .161 x = 30  31.937 / 12 5.161 Am I on the right
asked by Joyce 
algebra
A car cost $25,750.00 and depreciates in 20% per year how much will the car be worth in 5 years
asked by Anonymous 
Physics
The electric field from an infinitely large and uniformly charged sheet is independent of the distance from the sheet, yet the individual charges in the sheet all produce fields that object the inverse square law. Why doesn't the field get weaker at
asked by Timothy 
Chemistry
You put a rock weighing 45g into a graduated cylinder. Before you put the rock in the graduated cylinder, the volume of water in the cylinder is 10mL. After you put the rock in the graduated cylinder, the volume rises to 25mL. What is the density of this
asked by Lysa 
math
There are 3 red balls and 7 blue balls in Bowl A, and 8 red balls and 2 blue balls in Bowl B. Mandy rolls a die and if a prime number is up, Bowl A is selected; otherwise Bowl B is selected. Then Katie draws a ball randomly from the selected bowl. Find the
asked by Andrew 
English
4) 1 The first rugs were made as a part of their need. Read the passage. Look at the underlined section marked number 1. There may be a mistake in the way the sentence is written. If you find a mistake, choose the answer that corrects the mistake. If there
asked by Maya 
English
) (4) Her carpets were planned for, so not woven, until she knew the size of the room in her new home in which it was to be used. Read the passage. Look at the underlined section marked number 4. There may be a mistake in the way the sentence is written.
asked by Maya 
Science
You have been challenged to lift a weight of 200 kg from the floor.Your challenger has the same task and also lifts a 200 kg from the floor but they take longer time to do so.Who has completed more or less work?Explain.Who has used more power?Why?
asked by Susie 
math
1.Nancy is 3 times as old as Cathy. In seven years, she will be ten years older than Cathy. What are their present age?
asked by leslie 
Biology
What is the path that electrons take in C3 photosynthesis?
asked by Anon 
math
So far this year Nick has scored a 75, 81, 88 and 92 on four of his math tests. Each test is worth a maximum of 100 points. To earn a B this year, Nick needs a test average of 80 or better. Write the inequality that represents this scenario. Let t equal
asked by z 
Quantitative Reasoning (MATH)
If the national economy shrank at an annual rate of 11% per year for three consecutive years, then the economy shrank by 33% over the threeyear period.
asked by theresa 
chemistry
. What would be the molarity of the solution produced when 276 mL of 6.00 M NaOH is combined with 125 mL of a 2.00 M NaOH solution?
asked by jey 
math
Write the inequality that represents the solution set for −15/9 y
asked by z 
math
20 men dig a trench in 12 days,how many men would be needed to do it in 10 days
asked by Anonymous 
history
Hi, can someone please explain what it is I am to do. Here is the question. (I am extremely confused. thanks for your time!) thanks identify the headlines that could be described as yellow journalism and explain how these headlines and their stories
asked by ♥ 
Chemistry
How many grams of K2SO3 would be required to react completely with 200.0 mL of 0.245 M HCl
asked by Lauren 
calculus
The position of a particle is given by the equation of motion s(t)= 1/(1+t)where t is in sec and s in meters find the velocity.
asked by donnie 
English
what is passive voice
asked by Anonymous 
Math
Peanuts, walnuts, and cashews are mixed by volume in the ratio 5:3:2, to make a party snack. The number of cups of walnuts needed to make 12 cups of party mix are between: a) 1 and 2 b) 2 and 3 c) 3 and 4 d) 4 and 5 Math  Ms. Sue, Monday, February 20,
asked by Terrence 
Teacher Aide / Language and other Barriers
A student who has limited English proficiency would mist likely be placed in a(n) A. ESL I class B. ESL II class C. LEP Class D. Shelteredcontent class. My answer I am confused with B and C. So please help me
asked by A student 
English
I know that when we are writing essays, we cannot use the words we, you, etc. Is it okay if we use the words they, them, their?
asked by Anonymous 
Chemistry
If 32.3 grams of KCl are dissolved in 192 grams of water, what is the concentration of the solution in percent by mass? 5.94% KCl 8.55% KCl 14.4% KCl 16.8% KCl Can someone explain this to me? I don't want the answer I just want to know how to find it.
asked by Acasia 
Math
While solar energy powered home systems are quite expensive to install, adding some passive energy features to conventional construction can make a substantial reduction in heating and cooling costs. Passive solar requires no machinery and uses the
asked by Karola 
math
an equilateral triangle has three equal sides , which equation could be used to find the measure,M,of one angle A.180+3=M  B.3 x 180 C. 1803=180 D. 180 divided by 3=M if you know all the answer GREAT!!!
asked by harlee 
Algebra
there are three nickels three dimes and four quarters in your pocket. you randomly pick three coin and place them on the counter. the first two coin are a dimes, and the third is quarter
asked by Anshil 
physiology
how many grams of glucose (180grams/mole) to make a 13% glucose solution with a final volume of 600 milliters.
asked by sam 
Chemistry
A sample of 10.7 g of O2 reacts completely with CO to form CO2. 2 CO + O2 → 2 CO2. How many grams of CO is required.
asked by Jennifer 
Math
According to legend, manhattan islansd was purchased in 1626 for 24 dollars. If the 24 dollars have been invested instead at a rate of 6% interest per year, what would its value be in 2011?
asked by Chantal 
math
A pentagon has a perimeter of 60 inches, a side measures 12 inches. what is the sum of the measures of the interior angles.
asked by a parent 
math
From the top of the control tower 250 m tall, an airplane is sighted on the ground below. If the airplane is 170 m from the base of the tower, find the angle of depression of the airplane from the top of the control tower.
asked by Daniela 
Math 115
While solar energy powered home systems are quite expensive to install, adding some passive energy features to conventional construction can make a substantial reduction in heating and cooling costs. Passive solar requires no machinery and uses the
asked by Stacy 
chemistry
N2(g) + 3 H2(g) → 2 NH3(g) [balanced] If 5.42 g of nitrogen gas are reacted with 5.42 g of hydrogen gas, which of the reactants is the limiting reactant? Use the molar mass data below if necessary. Molar mass of N2 = 28.02 g/mol Molar mass of H2 = 2.02
asked by Jennifer 
Statistics
A CBS News/New York Times survey found that 97% of Americans believe that texting while driving should be outlawed (CBS News website, January 5, 2015). a. For a sample of 10 Americans, what is the probability that at least 8 say that they believe texting
asked by Jack Rogers 
Statistics
Wendy's restaurant has been recognized for having the fastest average service time among fast food restaurants. In a benchmark study, Wendy's average service time of 2.2 minutes was less than those of Burger King, ChickfilA, Krystal, McDonald's, Taco
asked by Kelly Luth 
Statistics
The Information Systems Audit and Control Association surveyed office workers to learn about the anticipated usage of office computers for personal holiday shopping (USA Today, November 11, 2009). Assume that the number of hours a worker spends doing
asked by Kelly Luth 
Chemistry
N2(g) + 3 H2(g) → 2 NH3(g) [balanced] If 5.42 g of nitrogen gas are reacted with 5.42 g of hydrogen gas, which of the reactants is the limiting reactant? Use the molar mass data below if necessary. Molar mass of N2 = 28.02 g/mol Molar mass of H2 = 2.02
asked by Jennifer 
calculus
A convex lens of a focal length f can be defined by the lens equation 1/f=1/p + 1/q if an object is a distance p from the lens, then the distance q from the lens to the images. For a particular lens, f=2cm and p is increasing find 1. a general formula for
asked by donnie 
Pre Calculus 30
1.How many positive threedigit integers can be made from the digits {3,4,5,6,7} if digits may be repeated? 5x4x3=60 2.In how many ways can all of the letters of the word HEXAGON be arranged if the arrangement must start with a consonant and end in a
asked by John 
Math
A wire is stretched from the top of a two feet tall anchor to the top of a 45 foot tall antena. If the wire is straight and has a slope of 3/5, then what is the length of the wire in feet?
asked by Anonymous 
History
Why did Russia's withdrawl from the war hurt the Allies? A The Russians had almost won the war before they had to withdraw B Germany was able to travel to Russia to attack the allies C The Russians begin to fight against the allies D Britain and France
asked by Help Ms.Sue 
02  Corporations: Organizations and Stock, Exam 2
Dividends in arrears occur when the company doesn’t pay dividends to A. cumulative preferred stockholders. B. noncumulative preferred stockholders. C. participating preferred stockholders. D. nonparticipating common stockholders.
asked by Wise 
stats
A preliminary survey shows that 35% of college students smoke. In a class of 42 students, what is the probability that more than half the students smoke?
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