# Math(Please help)

183,433 results, page 97

### Math

The tops of seven water fountains in the Italian City of Reggio Emilia form a straight line. The first fountain is 120cm and the last one is 12cm. How tall is the third water fountain from the left? I have absolutely no idea, please help!!!

### math

When a car makes an emergency stop on dry road, it leaves skid marks. The speed S, in miles per hour, of the car when brakes were applied is related to the length L, in feet, of the skid mark. Functional notation is needed, please help.

### math

Please check Fewer than 45 people attending d the show X<45 A student had $5 but does not have enough to purchas three pair of socks 3x<5 At least 127 students attended the rock concert 127>x No more than 50 students walked in the walkathon X>50

### Math

Carl borroowed $2,500 for six months at an annual interest rate of 11%. How much must he repay at the end of six months? a. $275 b. $2,637.50 c. $87.50 d. $2,762.50 Please show all steps needed to get answer in simple terms.

### Math topic part 2

18. Complete the table. a 5 6 7 8 9 b 3.8 4.6 5.4 (2 points) Essay: 9.39 and 10.6 i did 5.4 divided by 7 times 8 and i received thees answers 1 /2 points I like that you figured out the rule first. Remember, when finding the rule, you want to determine what you do to x to get ...

### Math

I need help solving the problem not the answer. (Multiple Choice) The steps below show the incomplete solution to find the value of x for the equation 7x + 8 − 3x = −6 + 10: Step 1: 7x + 8 − 3x = −6 + 10 Step 2: 7x + 8 − 3x = 4 Step 3: 4x + 8 = 4 Which of these is ...

### social studies

prepare a defence for the proposition that the Divine Right of Kings is necessary to good government. i don't get it. what does this mean? and i don't even understand the Divine Right of Kings, it was written in old english. please help me. and it also says that rewrite this ...

### Algebra-please check

Please check these: 1.When the fraction 2/3 is used as exponent, wht role does the denominator 3 play in evaluating expression? I think it indicates cube root of the base,correct? 2.sqrt of (2^4x/4^-2x) is equilvalent to 2^4x, correct? 3.Simplify (2xy^-2z^4/y^-3/z^3)^2 would ...

### Physics (Please, it's a minor error)

A rectangular block has dimensions 1.5cm x 3.2cm x 3.9cm and a mass of 61g. Determine the density in SI units My taking on the question, Mass= 0.061kg Volume= 0.1872m Density=0.061kg/0.1872m=0.3258547kgm^-3 Can someone please tell me where I'm going wrong?

### PLEASE HELP W/ COMPUTER SCIENCE?? JUST 1 PROBLEM?

Write a complete Main method that prints Hello, world to the screen. I have tried: MsgBox("Hello, World!") Console.WriteLine("Hello, world") MessageBox.Show("Hello, world") Almost every way that seems correct. Please help me.

### Math

Actually, i made a mistake. All though we still came up with the right answer, I made a mistake and copied another book answer to another question into this question. The real book answer to this word problem is: ( Let's translate the English into Math: x+3x=60, so x=15 and ...

### MATH

Mr. Smith used 17 lengths of fence to enclose his gardens. He now needs 6 lengths of fence for a dog kennel. Show how he can remove 6 lengths of fence and still have 2 squares. Please help!Thanks!

### PLEASE HELP ASAP!!!MATH

Here was my question The mean height of 5 students is 59.4. If one of the students leaves, the mean height becomes 61. What is the height of the absent student? Heres Bob's answer but what does set them equal mean?? SOMEONE HELP! math - bobpursley, Wednesday, May 26, 2010 at ...

### Science-QUICKLY PLEASE!!

13. Which invention below would not have been possible without the pioneering research of German-American physicist Albert Einstein, American physicist Robert Oppenheimer, and Italian-American physicist Enrico Fermi? a. computer microchip b. nuclear reactor c. television d. ...

### English

Please help write a reaction on this Article, I want to give good presentation. How can I make it interesting? Thank you! So, far I think the Author is Energy literate and motivates readers through his words. Please tell me how I can include "Energy conversion, Energy ...

### CALCULUS WXMAXIMA !!PLEASE!

y=log(100493/40000*x-1) y=atan(100493/40000*x+1) y=exp(-100493/40000*x+1) Note you will need 2 integrals to represent the area. Approximate the area of the region bounded by the given curves. I can do it with two but kinda struggling over here please helppp!

### chem -please help!!!!!!!!!!!!

An unknown compound, X, is though to have a carboxyl group with a pKa of 2.0 and another ionizable group with a pKa between 5 and 8. When 75 mL of 0.1M NaOH is added to 100 mL of a 0.1M solution of X at pH 2.0, the pH increases to 6.72. Calculate the pKa of the second ...

### 6th Grade Probability

The probability of winning a game is 25%. How many times should you expect to win if you play 36 times? A. 3 times B. 7 times C. 9 times (I think it's the answer) D. 11 times Please help me! If I'm wrong can someone please explain to me why and the correct steps and answer. ...

### geomety please help

the perimeter of a recatngle is 54 inches. The width is one inch less than the lenght. FInd the length and width. I just don't understand how to find the length and width if i am only givent eh perimeter please show work thank you

### Physics

A 492g oscillator has a speed of 99.5 cm/s when its displacement is 3.60 cm and 72.5 cm/s when its displacement is 5.10 cm. What is the oscillator's maximum speed? I'm suck with this problem, can someone please go through it with me step by step, please and thanks

### High School

Please provide me some links to websites where I can buy and download US High School text books. I am now in a UK based school in Asia but I will be moving to America next year. So please provide useful links.

### algebra

Please help....struggling with word problems and please explain how to get the answer.... Max has a collection of 210 coins consisting of nickels, dimes, and quarters. He has twice as many dimes as nickels, and 10 more quarters than dimes. How many coins of each kind does he ...

### English

I have to write an essay on "Why is college important to me" and I have to find two references and each reference must use quoted passage. Where can I find references for this topic because it's asking for my opinion please u need help please tell me what references to use

### chemistry

1.2 mol HCl and 3.9 mol NaOH react to this equation, HCl + NaOH=NaCl + H20 If the limited reactant id HCl, calculate the amount of NaCl formed in moles. Please help and explain how to solve this so I may understand it better please and thank you.

### Account,communication-skill,Economics,Business Law

Make a speech,Your md is 70year. Please state your question clearly. Please also note that we don't do students' homework for them. Our tutors try to give you the information to help you complete your assignment on your own. If there's not a tutor with this specialty online ...

### Math Help Plz fast

13. Describe the number of solutions for the equation. 10(x-2)=10x A.) one solution B.) no solution C.) infinite solutions*** 14. Describe the number of solutions for the equation. -2(y-3)=2y-6 A.)one solution B.)no solution*** C.)infinite solutions 18. Solve b-9>20. I don'...

### math need help please

-9 to the 2nd power - (-6) to the 2nd power

### math-line graph

x: 0, 1, 2, 3 y: 3, 2, 1, 0 I don't know what the pattern is in this x and y line graph. Please help me.

### Math

7k divided by 3=21 Can you please show me the work? I know that k=9 but I don't know how to show the work.

### Trig

can I please have help with these 3 questions? 1. Solve this equation graphically on the interval [0, 2ð]. list the solutions. sin(2x)-1=tan x 2. solve sin x cos x= sqrt3/4 3. solve tan^2 x-3tan x+2=0 thank you! show step by step please.

### college algebra--please help

what does Descartes rule of signs tell you about the possible number of positive real number zeros and the possible number of negative real zeros of the function? 1. f(x)=2x^5-5x^2+x-1 2. f(x)=5x^6+7x^4-x-6 please show work

### English Writing

Please help me... People believe in God because... And there is life on earth because... And people who believe in God think that God has put human beings on this earth because... I have to write continue of these sentences... Could you guys help me please?

### Math

aretha has $0.58 in nickels and dimes. she has 2 more nickels than dimes. how many and nickels and dimes does she have? these money word problems are hard. help please.

### math

1. Sphere C(-2,1,-3), radius=7. T plane at (4,-2,-1)=? (a) 6x-3y+2z=0 (b) r.(6,3,2)=28 (c) 5x-3y-2z=28 (d) r.(6/7,-3/7,2/7) 2. Sphere (x-1)²+(y-5)²+(z-2)²=49 and planr r.(-2,-6,-3)=0 form which circle?(a) (x-1)²+(y-5)²+(z-2)²=19.53 (b) C(0,0,0), radius=4.42 (c) radius=4....

### math

The function f(x)is defined as f(x)={-2x+3: if -2 less than or equal to < 1 f(x)={5: if 1 less than or equal to x less than or equal to 2 f(x)={x^2+2: if x > 2 a. find f(0), f(2) and f(5) b. determine the domain of f(x) Please show work

### Math

Please help. We have to use these digits to solve the two numbers - 2, 9, 4, 3, 6, 7. The difference between the two numbers is 377. What are the two numbers?

### math

Two angles are complementary to each other, if the ratio of the two angles is 3:2, then what is the difference of measures in degree of these two angles? please explain :(

### economics

please please please please help me this is due tomorrow!!! this is a table with some questions and i don't know how to solve it (1)real domestic output (GDP=DI) in billions $200 $250 $300 $350 $400 $450 $500 $550 (2)aggregate expenditures private closed economy billions $240...

### Math(Please Help)

x-2 6x ____ - _____ 3x+4 x+1 *You are supposed to simplify the expresion.I really need help with this and some other problems.Please and Thank you.- Perhaps I could help but I can't make heads or tails of your posts. Try using parentheses (and / bar for divisiion). ok well can...

### geometry

graph the following 2 graphs - y=2x+3 and y=2x-4. a)state the intersections on the y axis and the x axis. b)what is the vertical and horizontal difference between the two graphs? PLEASE help i don't understand? I know how to graph the eqautions but not too sure about the ...

### Social Studies

Who are some famous people that were born in France? Please give me someone who has lot's of info not just 2 or 3 notes. I need someone famous who has lot's and lot's of notes. I tried typing it on google and I found nothing! Please help me! Thanks...

### phyics (PLEASE PLEASE READ)

a model rocket rises with constant accerleration to a height of 3.2 m, at which point its speed is 26.0 m/s. (a) how much time does it take for the rocket to reach this height? (b) what was the magnitude of the rocket's acceration? (c) find the height and speed of the rocket 0...

### Chemistry - help please

In an experiment, when 25 mL of 5.5 x 10^-3 M NaOH is mixed with 30 mL of 7.5 x 10^-3 M Fe(Br)2, a hydroxide compound is formed (Ksp = 1.8 x 10^15). Which of the following describes the resulting solution? a. The product is unsaturated b. The mixture product is saturated c. ...

### Math(Please Check)

Problem: 4x/(x+2)-8/(x-1) What I Got: 4x^2-4x-16/(x+2)(x+1) *I had to simplify the rational expression No. At x=0, it doesn't check. The starting problem gives 8, your answer gives -8. I suspect a sign error somewhere. Probably in the denominator, the x+1 should be x-1

### math

Find the equation of the tangent line to y=6^((x^2)-4x+8)) at x=3. I have worked very hard on this problem, but I can not find the right answer.... I keep getting: y=[(ln6)(6^5)(6)]+[7776-[(ln6)(6^5)(6)]]=7776, but it says this is not correct. Please help!

### MATH--Please help!!

I'm desperate! Find the point where the curve r(t)=(12sint)i - 12(cost)j+ 5tk is at a distance 13pi units along the curve from the point (0,-12,0) in the direction opposite to the direction of increasing arc length. Thanks for any advice...

### Math

How long one can hold their breath can be calculated using the formula y=1.4g where y is the amount of time one can hold their breath in seconds and g is the size of their lungs in cubic centimeters. Is this a relation or a function? Explain why. Please Help!! Thanks!!

### Math

How long one can hold their breath can be calculated using the formula y=1.4g where y is the amount of time one can hold their breath in seconds and g is the size of their lungs in cubic centimeters. Is this a relation or a function? Explain why. Please Help!! Thanks!!

### 6th grade Math

I don't get this question, can someone please explain it, thanks. Heres the question: A lighthouse beacon can be seen 24 mi in all directions. What is the area over which the beacon can be seen? - I think it's circumfrence, but I don't really know what to do. Thanks, Bob.

### math please check my work

a license plate has 2 letters followed by 4 digits.how many license plates are possible if the digits and letters can be repeated? f-8 g-92 h-676000 i-6760000 i think it is i(the 4th one) am i correct thank you for helping me

### 8th grade math

Can you please check my answer? A spherical balloon has a volume of 268 cubic cm. If more air is pumped in so that its radius is 3 times as long, what is its new volume? My answer: 2,412 cubic cm

### Math repost

I posted this question before at 7:14 I think the answer to it is 0. cot(40) - ((sin(50))/(sin(40)) = ? these are also degrees steps too please. I thought since 50+40= 90 then that part would be 1, but then how would cot 40 turn out to be 1

### Trigonometry (Math)

From the top of a building 70 ft. high, two objects in a straight line from the building are observed at angles of depression of 28° and 41°6' respectively. Find the distance between the two objects. -Complete Solution please. :'(

### Probability

Darby guesses the answers to six questions on the math portion of her college entrance exam. Each question is a true or false question. What is the approximate probability that at least 4 of her answers are correct? A. 0.23 B. 0.34 C. 0.66 D. 0.78 Explanation please??

### Math

Find the product or quotient. Write the strategy you used. Write model, break apart, multiplication table, inverse operation pattern, or doubles. 56/7=8 and 36/9=4 and I need help showing the strategy used. Please help thank you.

### math Please HElp

The minute hand on a watch is 7 mm long and the hour hand is 4 mm long. How fast is the distance between the tips of the hands changing at one o'clock? (Round your answer to one decimal place.)

### math

As a a test of a new measurement process, 10 measurements are made on pieces of glass known to have conductivity 1. The average of the 10 measurements is 1.07. Indicate whether 1 and 1.07 is a parameter or statistic and explain why. I understand that 1.07 is a statistic. ...

### Math

A Classroom bulletin board is 7 feet by 4 feet. If there is a picture of a student every 6 inches along the edge, including one in each corner, how many pictures are on the bulletin board? The teacher gave me the answer 40 but I don't know how.... Can you help me, please

### math

You have a 20-foot ladder that you are using as you paint your house. You place the ladder so that it forms an angle of 30 at the point of contact between the ladder and the ground. How high will the top of the ladder be above the ground? Please explain. thank you

### math

Four similar glass tumblers just fit into a cubical box.The area of the top of the circular cover of any one of the tumblers is 4 pi.The area of each side of the box is a. 16 b. 32 c. 32 pi d. 64 e. 64 pi please answer and explain

### math

Four similar glass tumblers just fit into a cubical box.The area of the top of the circular cover of any one of the tumblers is 4 pi.The area of each side of the box is a. 16 b. 32 c. 32 pi d. 64 e. 64 pi please answer and explain

### math

What is the period, in seconds, of a simple pendulum of length 3 meters? Use the gravitational constant g = 9.8 m/s2 and round your answer to two decimal places Please help! A step by step would with the answer would be helpful!

### Math

Find all values of p such that 2(x+4)(x-2p) has a minimum value of -18? I know x=-4 but I do not know that helps us. Please explain in steps! The temperature of a point (x,y) in the plane is given by the expression x^2-y^2-4x+2y. What is the temperature of the coldest point on...

### math

2. sylvia has 6 1/2 boxes of chocolate to share at a family picnic. if she gives each person 1/3 of a box, how many people can receive chocolate? 13 17 19 21 3.which of these numbers is not rational? square root 3 0.25 1/5 square root 9 someone please help asap

### Math

Simplify the expressions in each pair. (2 marks each) (Show your work) (x^2-2x)/(x+1)x (x^2-1)/(x^2+x-6) My work on simplifying the expressions x(x-2)/x+1 x (x+1)(x-1)/(x+3)(x+2) If I've gone wrong please help me understand where I went wrong and help me get the correct answer...

### Math

Simplify the expressions in each pair. (2 marks each) (Show your work) (x^2-2x)/(x+1)x (x^2-1)/(x^2+x-6) My work on simplifying the expressions x(x-2)/x+1 x (x+1)(x-1)/(x+3)(x+2) If I've gone wrong please help me understand where I went wrong and help me get the correct answer...

### algebra..Matrix...math

Hi, Please help me to this question would prove less than 10 hours Athens has a population of n ,m club with any club membership is an even number and the number of members of both clubs to prove and show m<n

### Math

Let me know if I'm correct please For exercises 1 and 2 translate each phrase into an algebraic expression The difference of a number and sixteen n+16 n-16<---- when they say difference it - 16n n over 16 five times k 5k k+5 k/5<--- 5-k for exercises 3 and 4 evaluate ...

### Math

the arch of a concrete bridge is a semi ellipse having a span of 60 ft and a central height of 20 ft. if the roadway is 25 ft above the base. find at 10 ft intervals the distance from the arch to the roadway. (Im completely lost at what to find. Please help)

### Math

I was wondering if anyone could please help me with an Algebra 2 problem involving roots. The roots are 1/2, 1, and 3+2i. I need help finding the equation of that and it passes through the point (-1,200). I did (x-1/2)(x-1)(x-3+2i)(x-3-2i) as my first step Is that right? Then ...

### Help Me On Math Please, If Anyone Is Available

A multiple choice test has 5 questions each with 5 possible answers. Find the probability of answering all the questions correctly. A. 1/3,125 B. 1/25 C. 1/625 D. 1/125 I'm on a test, and this is the only one I'm stuck on.

### math

A circular oil slick is expanding with radius, r in yards, at time t in hours given by r=2.5t−0.3t2, for 0≤t≤10. Find a formula for the area in square yards, A=f(t), as a function of time. f(t)= HELP PLEASE!

### Math

Susan tossed a die 1,038 times. Which of the following would be a good estimate of the number of times she got the number 3 on the die? A: 186 B: 128 C: 306 D: 273 Can someone please help and explain this to me?

### Math

Alice is covering a foam cube with fabric to make a footstool. Each side of the cube is 20 inches. How many square inches of fabric will she need? 120 in** 720 in 1,200 in 2,400 in Please help!! I'm not sure I quite get it!

### Help Math

A graph of the sequence f(n)=2n-3 and a graph of the function f(x)=2x-3 are both shown What accounts for the differences between the graphs in terms of range? i know only the difference of the domain but i have no idea the difference of the range can someone please help

### Math

Rita needs to measure out 3.5 gallons of vinegar for a science experiment However, her only measuring tool is a measuring cup that holds 1 cup. How many cups of vinegar does she need? I am confused on this can you please help me?

### math

A girl starts from point A and walks 285m to B on a bearing of 078.She then walks due south to a point C which is 307m from A. What is the bearing of A from C,and what is {BC}? please i need the answer urgent ooo it is an assignment pls help me fast

### Math

A jeepney ride costs 8 pesos for the first 4 km and each additional integer km add 1.50 pesos to the fare. Use a piecewise function to represent the jeepney fare in terms of the distance (d) in km. Please give the solution. Thank you

### Chemistry

Hi can someone please help with this question, or atlest direct me in the right direction. Please and thank you. The initial rate of reaction H2O2(aq) --> H2O (l) + 1/2 O2(g) is found to be1.7*10^-3 M/s . Assume that this rate holds for 2 minutes. Start with 165ml of 1.55M ...

### please check my work language

-write the plural for each noun potato-potatoes shoe-shoes auto-autos speech-speeches -describe the kinds of information about words that can found in a dictionary *prononciation *parts of speech *definition and the word *how many syllabuls a word has is there anything else ...

### Algebra

Fiona invested $1000 at 8% compounded continuously. At the same time Maria invested $1100 at 8% compounded daily. How long will it take for their investments to be equal in value? Assume there are 365 days in every year. Please help I have tried everything and cannot solve ...

### Chemistry

Balance the equation: NO2- (aq) + Al (s) --> NH3 (g) + AlO2- (aq) (basic solution) ** please note the "2-" on the NO2- and AlO2- are not subscripts, they are the charges. I missed a few classes in Chemistry and find myself lost. I have tried to learn these equations with ...

### math

using 3,4,5,6, =28 you have to use each number once Using addition once, subtraction once, multiply once and divid once how do get these numbers to =28 please shoe me how you do it Thanks

### math

A circle has an area of 25 pi cm^2.If a circle is drawn within that circle with a diameter equal to the radius of the first circle, what is the area of the second circle? a. 2 1/2 pi cm^2 b. 4 1/4 pi cm^2 c. 5 1/4 pi cm^2 d. 6 1/4 pi cm^2 e. 7 1/2 pi cm^2 please answer and ...

### Math

carl wants to plant a garden that is 1 1/2 yards long and has an area of 3 1/2 square yards. How wide should he make the garden? a. 3/7 yard b. 2 yards c. 2 1/2 yards d. 5 1/4 yards Help please.

### Math. PLEASE HELP!

1. What is the sum? 7 over 3+ -3 over 8 A. 65/24 B. 47/24 C. -4/5 D. -5/4 2. What is the difference? 9 over 5 - 1 over 6 A. 49/30 B. -8/1 C. 59/30 D. -1/8 3. What is the simplified form of the following expression? 4 over 7^3 A. 343/64 B. 21,952 C. 407 D. 64/343 My answers: 1...

### math

I have a question in my math class in college. Here is the question, but I just need help on HOW to answer it. My text isn't clear at all. A box contains 2 black balls and 3 gold balls. 2 balls are randomly drawn in succession. a.if there is no replacement, what is the ...

### Math

Are these correct? I need to bring my grades up for math. Please help! 1. Identify the decimal and simplified fractional form of 60% A)0.6 and 4/5 B)0.6 and 3/5 *** C)0.06 and 3/5 D)0.06 and 6/10 2. A baseball team wins 45% of its games. What fraction of games does it win? A)8...

### Math

Hi, I have a question regarding simplifying the following expression: (1/x)/((1/3)x^(-2/3)) = 3/3sqrtx The last expression reads three over cube root of x. I don't understand how to get from the expression on the left side of the equal sign to the one on the right. Could ...

### Financing

Please..I need help asap If a firm pays its bill with a 30 day delay, what fraction of its purchases will be in paid in the current quarter? Please show me how you get this answer Since a quarter is three months long, then 2/3 of the firm's purchases are paid in the quarter in...

### drivers ed

can someone please tell me a good website or give me a good link where i can take a practice driving test for a permit (learners licence). pleeease, i really need to practice, and i need a test that is updated. close to the real test. please help me

### business

Please please I need help with this question. thanks For 2010, Fielder Corporation reported net income of $30,000; net sales $400,000; and average share outstanding 6,000. There were no preferred stock dividends. What was the 2010 earnings per share? a.$4.66 b.$0.20 c.$66.67 d...

### 4th grade Science (Please Help!)

Bowl A and Bowl B are filled with the same amount of water. Bowl A is covered in plastic wrap. Both bowls are left on a counter. The water level is checked in both bowls after 1 week. What is the hypothesis? Please HELP!

### algebra

can someone help me with this question it is very hard the question is 4j - 3 = 5 the solutions are a)j=1/2 b)j=2 c)j=8 d)j=32 someone please help me on this pretty pretty please

### free verse poems please

i need really good examples of free verse poems please

### Help Please, Oh Please--Algebra

Identify 3x^5 − x^2 + 4x as a monomial, binomial, or trinomial. A. trinomial B. binomial C. monomial D. none of these

### Chemistry Basics- Please Help!

Choose either homogeneous or heterogeneous. Tea: homogenous Concrete: heterogeneous Soda: homogeneous Soapy Water: homogeneous Salt Water: homogeneous Granite: heterogeneous Please help, and thanks lots :D

### Algebra

Mr. Green teaches band, choir, and math. This year, he has 57 students that take at least one of his classes. He teaches band to 25 students. There are 48 students who take either band or choir or both. There are 9 students who take both math and choir with Mr. Green. Use the ...

### math

In 2007, the population of a town was approximately 35,250. In 2012, the population of the town had decreased to 28,200. Based on a linear model, what will be the approximate population of the town in 2014? Please i need help with this i don't understand.