Math(Please help)

185,959 results, page 66


A "super ball" dropped from a height of x feet bounces to a height y that is 80% of x. Can anyone please teach me how to find its numerical, algebraic, and graphical representations? Thanks a lot!!!




determine vertex, focus and directrix of parabola. then graph the parabola. second equation: y^2 -4y -12x= 8 Please help me this is do 2day bc i forget to turn it in to my teacher


which of the following functions have a inverse? f(x)=ab.solute value of x. f(x)=x^3 f(x)=x^4 f(x)=x^3 f(x)=x^4,xless then or equal 0. how do i know if they have an inverser, can someone please explain:) thanks for your time YOOO


simplify these expressions as fractions: (26/27) + (35/4) (26/27) x (35/4) (3x/2y^2) x (2yx/x^2) and what are the restrictions of x, y? (3x^y/zw) + (tx^2y^3w^4/z) and what are the restrictions for he variables x, y, z, t, w to make the expression well defined? i'm not sure how...

MATH 156

can some one please check if my answer is correct. Write the number in scientific notation. 15)0.000 294 Answer: 2.94x10^(-4)


the width of a rectangle is fixed at 27 cm. what lengths will make the perimeter greater than 70cm? the length must be greater than _70_ cm please check if this is correct. thank you!!


I donot understand how to do this practice question for a test I have tomorrow. can someone please show me step by step? (-> is an arrow) lim x-> 0 (32-32cosx)/64


Find three consecutive integers such that 5 times the first and third is 14 greater than 8 times the second. Please show all work.


Factor the expression on the lift side of each equation. Then solce the equation: 8xcubed-27=0... also please show work so I understand how you got the answer.


1) use the half-angle formulas to determine the exact values of the sine, cosine, and tangent of the angle. 67 degrees and 30' Please explain!! I do not know how to start.

to Mary - re "Math (basic statistics) ..."

Your post has been removed. Once you write up YOUR THOUGHTS, please re-post, and someone here will be happy to comment.


Round 1,643,253 to the nearest hundred thousand. I say it's 1,600,000 but the workbook says 1,700,000. Please explain.


Please give am example for this formula: Debt servicing burden + (Debt payment rule-growth in wage)+ Price inflation rate

5 th grade math

The scores earned by the students on a recent assignment are listed below. what are the maximum and minimum of the scores? 74,80,80,83,84,85,90,87,91,92,91,93,81,95,73,82,78,94. maximum______? minimum______? please help me with this problem thank you!!


when doing decimoles and multiplying them by whole numbers...for example 4.7805 multiplyed by 1000 dose the decimole go 4places over or 8places over i don't get it please help!!!


What does it mean if a line in R^3 is parallel to the xy-plane but not to any of the axes. I really don't know what this means in terms of how the parametric and symmetric equations of the line should look. Please help.


What does it mean if a line in R^3 is parallel to the xy-plane but not to any of the axes. I really don't know what this means in terms of how the parametric and symmetric equations of the line should look. Please help.


What's the slope-intercept equation of line which is parallel to y = 2/5x-3 and passes through point (0,5) A. y = -5/2x - 3 B. y = -5/2x + 5 C. y = 2/5x + 3 D. y = 2/5x + 5 Its D, but how do u figure that out? please explain step by step.

math please help?

Nena invested some money at 7% interest and the same amount at 10%. Her total interest for the year was $850. How much did she invest at each rate?


We need some help with these questions that we posted earlier. Please. What is the meaning of a relative frequency of 1? A rotation is described by it's ____ and ____? Thank you very much.


A pond 100 ft in diameter is surrounded by a circular grass walk 2 feet wide. Find the are of the walk. Answer in terms of π. Please help me! TY


There are 6 boys and 8 girls in a group of students. Calculate the number of ways that a president, vice-president and treasurer can be selected. Please show your work.


an airplane is flying at 550 km/h on a heading of 080. the wind is blowing at 60 km/h from a bearing of 120. Find the ground velocity of the airplane. Please Help! Thanks in advance.

math geo please help?

finals next weekk D: ten less than three times the complement of an angle is it supplement. find the measure of the supplement?

Math 116

Create an equation of a nonlinear function and provide one positive and one negative value for x. Please show steps in how to solve it as well.

Math,Word problems(algebra)

Kai Ling has 4m kg of flour.She bought 2 more packets of flour, each of mass m kg.How much does she has now in terms of m? Please help me

More MATH 

Here's some other stuff we never learned in class: 7e-2=47 e=_____ 1/3g=8 g=_____ 5b+1=46 b=______ I don't know how to work them! Please explain as well.


Let c be a positive integer with 1<=c<=n. Show that the set: W ={ó exists in Sn such that ó(c)=c} is a subgroup of Sn. (The set W is called the stabilizer of c, because every element in W leaves c fixed.)

Math- Trig please help!

A tire with a diameter of 100 cm rotates 20 times in 3 seconds. a) determine the angular velocity b) how far the tire has travelled? c) what is the speed in km/h?

math help please

if you divide this number by 2 you will get 3 multiplied by 6. Subtract 3 groups of 3 and you will get 3 multiplied by 9. I am so confused trying to help my 8 year old figure this out i have come up with 9 then 36 then 0

math help please

if you divide this number by 2 you will get 3 multiplied by 6. Subtract 3 groups of 3 and you will get 3 multiplied by 9. I am so confused trying to help my 8 year old figure this out i have come up with 9 then 36 then 0


THe population of Anytown in 1960 was 1,576,230. In 1990 the population was 892,560. Find the percent change. AM REALLY CONFUSED PLEASE HElp


Need help understanding 2010-2011 Transitional Unit: 06 Lesson 01- Unit: 05 TESCCC source It is called Maintain Your Balance Can someone please help?


John jogged downhill at 6mi/hr and then jogged back up at at 4mi/hr. If the total jogging time was 1.25 hours, how far did he jog in all?


A tuition bill was $4360. If she paid $6052 what's the percentage increase on her tuition. (Could you please show me how you get this answer so I'll have an idea on how to do the others that are similar)

aig math (please answer Ms.Sue)

Albert bought 28 compact discs for $805.give a quick estimate of the cost of each compact disc.


Solve the inequality and express the solution in terms of intervals whenever possible. | x+3 | < 0.01 I know the answer is : (-3.01,-2.99) Please show me how to solve this type of math problem.


solve equation then check for extraneous solution please someone explain this to me. 6/6-4x/=8+4 then one that is solve the inequality s/x+3/4<2 I don't understand these problems and then it says to graph


What expression is a counterexample to the statement The whole numbers are closed under division 2 divided by 10th 10 divided by 2 Please explain to me which one is the correct


Could someone help be understand the general addition rule for probability? It says P(A or B)= P(A)+P(B) - P(A and B). But I get a different answer when I work it out myself: P(A or B)= P(A)(1-P(B)) +P(B)(1-P(A)) = P(A) -P(A)P(B) +P(B)-P(A)P(B) =P(A) +P(B) -2P(A)P(B) Would ...


ok so this question is to ms. sue this question says what is the actual height of the living room whose distance is 9/20 inch on the the blue prints??? can u help me please -celeste


what is the volume in cubic feet if you have a cylindrical object whic is 8' in diameter and is 16' feet long.? could you please show in detail how to figure this out? thank you

math--please check

Change the logarithmic equation to an equivalent equation involving an exponent. log8^64=2 **note that the 8 should be lower than the g** 8^(log64)=8^2 64=8^2 is this correct

Math Help Please!!!!

Natalie picked 135 berries in 15 minutes. If she continues picking at that rate, how long will it take her to pick 486 berries? Explain.


Ivan has completed 45% of his walk. He has already walked 9 km. How much farther does he have left to walk? I don't understand how to do this. Could you please help and show me how you got this answer? Thank you.

Math 6th grade

The base of the skateboard ramp has an area of 2.3 m square meters the height of the ramp is 1.2 m find the volume of the rectangular prism?Please help!

Math Help Please!!!!!

The number of pounds gained during pregnancy are normal with mean=30.23 and st. deviation=13.84 Determine the percent of women that gain between 20 and 30 pounds.

Annuity math

Calculate the future value of S of an annuity using the following formula: S =R(1+i)^n-1/i) given R=250,i=0.001;n=13 please show the workout thankyou

heeeeeeelp math

visit this link and answer the question on screen please tell me answer also


A.) graph the quadrilateral with the end points A(6,5), B(-3,-1), C(-1,-4) and D(8,2) B.) what type of quadrilateral is ABCD? use slope to justofy your answer Can someone please help me with ASAP thank you so much


Employees at a company are given a three digit employee identification code. If each digit cannot be repeated, how many different codes are possible? Please help.


Assume that the mean salary for a profession is $35,104 with a standard deviation of $3200. What percent of the profession earns less than $38,700? I don't understand how to do this. Please help!!


I'm confused, please help. If a quarterback had 112 positive yards and 61 negative yards what was his total yardage, should I add both together?


a restaurant charges a reservation fee of $15 for its party room, plus $21.50 per person. If the bill was $445, how many people were at the party? HELP PLEASE! IS THE ANSWER 30?

Quick math help

Use the following information to find y: m= -3 (5,2) and (6,y) Now write the point slope form of the equation using the completed point: Please help!! Thank you!!


i was doing the mean theorem for this problem: (x+4)^2 (x-3) on [-4,3] i got to: 3x^2 + 10x-8=7 someone helped me out and told me the answer was (-5 +/- sqrt(70))/(3) but i don't know how to get to there, can someone please explain to me how to get to this point?


Three minutes after take-off, and airplane is 5,000 feet in the air. If it ascends at a constant rate, what is the rate of change? Please help.

Math: Trig

What is Arcsec(-2) equal to and how can you find the correct answer? I got 2pi/3 but it was marked wrong on my test and I'm not sure why it's wrong. Can you please explain this to me? Thanks!


This isn't very urgent but can you please break this down to me step by step? I really don't understand. I get that I'm supposed to use the order of operations but I still get lost. 2[4(9-7)+1]/3


!!PLEASE SHOW YOUR WORK!! My recipe makes 96 cookies, but I'll only need 24 for the party, what will I multiply each ingredient by to make just 24 cookies? Explain.

4th grade math

explain how you know that 21/30 is greater than 2/3. Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!. Also, I need a FOURTH GRADE ANSWER, nothing else, perferibly using fraction strips.

Business Math

Find the amount due on a $300 invoice received on June 3 and paid on June 11 if the sales terms are 3/15, n/30. I can't figure this out! Please help!


integral of ((1+sin(2x))^0.5)/(sin(x)^2) I tried all kind of substitution, simplification but unable to solve it.Need a hint only no solution please.

math lictracy,life science,geography,tourism,isizulu,english,life orantation.

please tell me the job i can do while im study that subjects?

math asap

this is a difficult question for me please help! thankyou A sequence is defined recursively by an + 1 = 3an − n, a1 = 2. Find the first six terms of the sequence. a1 = a2 = a3 = a4 = a5 = a6 =


Please show eighty thousand, nine-hundred twenty-three and eighty-six hundredths in standard form. My answer was 80,923.86 Thanks

Math Asap

When adding √9 and -7, which type of number is the sum? A.irrrational B.whole number C.radical D.integer My answer is A. CAN you check please @Ms.Sue


Which measurement represents the height of the parallelogram? 3 m 4.2 m 6 m 10.2 m I'm stuck between 3 and 4.2 I can rule out 6 m and 10.2 m. But what would there be a difference if I were to choose 4.2 if it is slant height or just 3 m? Please help me.


Please check my answer. Four girls went to Friendly's. The check comes to $36. They want to leave a 20% tip. How much should each girl pay? 36 ÷ 4= $9.00 $9.00 × 20%= $1.80 $1.80 + 9.00= $10.80 each


Carter bought a pair of jeans for $49.99 and a shirt for $23.59. He received $6.42 in change. How much did Carter have originally? Should I round or subtract? Please help me!


Three picture frames are on a dresser.two are shaped like squares and the other is a trapazoid. how many sides are there in the frames altogether? Please help today


Find the number of vertices in a polyhedron if it contains 20 triangular faces and 12 pentagonal faces. a. 30 b. 32 c. 60 d. 120 * Also please show me how you got your answer, thanks


Find the measure of the third angle of a triangle given the measure of two angles are 86º and xº. A. 86-x B. 90-x C. 94-x D. 180-x My answer was A. Please correct me if I am wrong. Thank you

math please explain!

Suppose this firework is set to explode 3 seconds after it is launched. At what height will this firework be when it explodes? My equation is h(t)=-16t^2+120t+20 How do I do this?


The dimension of a rectangular garden are represented by (x+7) (x-7) A. What is the area of the garden? B. It is possible that x=?how about x=-7?explain why or why not? C. What could be the value of x? I need answer to my homework now na please


if 2m + n= 7, then 9m+3n= i tried using elimination for this one too. I tried to find m m= 7-n/2 Then i plugged it into the first equation. and somehow i got 7=7 ??? CAN SOMEONE PLEASE EXPLAIN

Math please help !!!!!!

How many blocks 1 inch on each edge would it take to fill a shoe box that is 12 inches long , 6inches wide , and 5 inches high ?


Solve the system of equations to find x,y,z (hint let d=x2 e=y2 and d=z2 . Find d e and f first) !!where ever you see 2 it's supposed to be a squared sign!! X2+y2+z2=9 3x2-y2-z2=7 Y2+2z2 =6


A ball is thrown from a cliff. This is modeled by the eqn h=-5t^2 +5t+210 How long does it take the ball to reach a height of 60m? I don't understand how to find this, please help.


A running tap dispenses 0.15 gallons of water every second. How many pints of water is dispensed after 20 seconds? Please show me how to get the answer.


A math department is allowed to tenure 4 of 17 eligible instructors. In how many ways can the selection for tenure be made? Please show more than one approach.

math please help

Chris can be paid in one of two ways. Plan A is a salary of ​$450 per​ month, plus a commission of 7​% of sales. Plan B is a salary of ​$681 per​ month, plus a commission of 4​% of sales. For what amount of sales is Chris better off ...


find the constant of proportionality and unit rate for the data in the table. Then write the equation to represent the relationship between time t and distance d Time Distance 2 hrs 90 miles 3 hrs 135 miles 5 hrs 225 miles 6 hrs 270 miles I don't understand how to do this kind...

Colonial Times

colonial government info. please help Please be more specific about what you need. Which time period? Which colony? If you give us more information, we'll be glad to help you.

please check my answer med reimbursement

Please recheck my answer thanks The Americian Associaton of Labor Legislationimplemented fee schedules True or False I said True

Health please check my answer

Please check my answer thanks True or Faslse The term used to describe why medical treatment is necessary is procedure I say False

I just posted chinese!!

um, i don't think it appears really well on my monitor (is it just mine or...) if you can't see it, could you please give me your email add so that i can email it to you and you can check the mistakes? please help me...


Please Solve: 4-x=-5 I thought the answer was -9 but that doesn't seem to be it. Can someone please help? Thanks! This is what I have: 6. 4-x=-5 The problem to solve is: 4-x=-5 Subtract 4 from both sides x = -9 Then divie by -1 Would the answer be 9? To Check: 4- - 9 = -5

Earth Science

What are two forces that cause the Earth's surface to constantly change and what are their effects on the planet? Please help I do homeschooling and I'm super behind in science please answer before 12:00 p.m. on 11-17-09


I NEED HELP ON THE NEXT WORLDS PLEASE i need the definition also please 1. Performance goals 2. Mastery goals 3. The effect of praise 4. Expectations and self-efficacy


I NEED HELP ON THE NEXT WORLDS PLEASE i need the definition also please 1. Performance goals 2. Mastery goals 3. The effect of praise 4. Expectations and self-efficacy


Please find these sentences whether these are correct or not. If not please explain. 1.Neither of these roads----lead----to the railway station.(lead, Leads) 2.Many of these roads--were--- damaged by the earthquake.(was, were)


find linear approximations for each of the following and put a bound on the error of the estimate. 1. (7.985)^1/3 using f(x)=x^1/3 and a=8 2. (.9997)^100 using f(x)=x^100 and a=1 please help explain please too


Which of the following metals would be expected to have the most unstable salts? a) sodium b) zinc c) tin d) silver Please define for me what 'unstable salts' are please?


how to prepare research graphic organizer ocean animal.which one is the best like dolhin.please help me i don,t have any to prepare that one can u please explain me


How many moles of Hydrochloric acid are needed to dissolve 39.0 grams of aluminum Hydroxide? I just need to write out the equation but I was out and don't know how PLEASE HELP!

alGEBRA 2 help please would appreciate

for the equation -4x-8y^2=0,give the focus and directrix.then sketch the graph, showing both the focus and the directrix. please show all the step thank you.

ALGEBRA 2 help please would appreciate

for the equation -4x-8y^2=0,give the focus and directrix.then sketch the graph, showing both the focus and the directrix. please show all the step thank you.

Please help trig proof

((cotx+cscx)/(sinx+tanx))=cotxcscx Please prove left side equal to right side, only doing doing work on the left.


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