Math(Please help)

181,141 results, page 87

math problem

please find slope and y intercept f(x) = -3x -6 Slope = intercept =

math

please help me if x over 4 minus a over b is equal to 0 b is not equal to 0, then x equals what? thanks

math

please help me if x over 4 minus a over b is equal to 0 b is not equal to 0, then x equals what? thanks

Help please math

Solve using substitution. y = x – 2 x + y = 10 7x + 2y = - 8 8y = 4x Solve using elimination. 2x + 3y = 12 2x – y = 4 5x – 2y = - 19 2x + 3y = 0

Math

equation log_b a = c. a) If 0 < a < 1 < b, what can you conclude about c? b) If a < 0 < 1 < b, what can you conclude about c? Please help !

Math

square root (x-3)-square root(x)=3 can someone please solve this for me

math

1. give an example of an absolute value inequality whose solution set is the empty set 2. explain why \x+2\ is greater than or = to -4 has all real numbers as its solution set. please help

Math - Pre Algebra

Simple and Compound Interest Find the simple interest. principal= $870 interest rate= 6% time= 9 months Please help me I need the answer for tommorow.

Math

Use your knowledge of exponents to solve. a) 1/2^x=1/(x+2) b) 1/2^x>1/x^2 So I know that these functions are rational functions.. and I am trying to solve for x. I tried to solve them by I keep getting stuck with the exponent 2 which is the exponential function.. Help please

Math

What is the FCIA tax (assuming a 7.05% rate) on a weekly paycheck of $398.00? What is the sales tax of 5% on a purchase of $6.71? What is the property tax of 1.6% on property assessed at $60,000? Please help i am very stuck on these!!!!

Math

3) Explain how the laws of exponents work with rational exponents and give at least one example of an expression containing rational exponents... Please help.. I can't find the answer to this anywhere..

How to calculate marks to pass with the exam

My friend has currently 62.4% and the final exam is worth 30%. She's wondering how much she should get on the exam to at least pass or boost it up. Please show the math :o

Math

Use synthetic division to find the quotient and remainder: (2x^5-7x^3-5x^2+1)/(x-2) This is what I got: Quotient: 2x^4+4x^3+x^2-3x-6 Remainder: -11 Do i just leave the quotient like this: 2x^4+4x^3+x^2-3x-6? Do I need to factor it down more? please help and thank you

please help

HI, MY dughter is studying 3rd grade.how to prepare Tsat test in math,english.can u tell me .can u send me links.Tennese state.that links is not working.can u send me another links

Math

A particle is projected along an inclined plane with a velocity given by the formula v = 4.4t2 + 10.1t -23.2. Determine the acceleration of the particle when t = 1.5 s. acceleration in m/s2 = My Answer V'=8.8t+10.1 V"=8.8 V"(1.5)= 8.8 acceleration in m/s2 = 8.8 Can you please ...

MATH SINUSOIDAL APPLICATION

Would pulling a roll of thread create a sinusoidal function? please suggest some real life application of sinusoidal wave that i can experiment with...

Math!!!

Jim bought 1520 g of beans. He used all the beans to make 16 bean bags. How many hrams of beans did he use for each bean bag? - equation format please!

Math

Could someone please help me. Solve the linear equation by substitution. Y=10-2.2x 5x+y=70 For the first equation I am getting x=21.4 and for the second equation I am getting y=-37. The answers are 21 3/7 and -37 1/7. Could you show me how you do this so I can see where I went...

math help please

Chumley from the TV show "Pawn Stars" bought some vintage watches for $15 each. He sold five of the watches for $36 each. What was the total amount of profit made for the watches sold?

Math

A circle’s area is represented by A = π(x2 − 22x + 121). What expression represents the radius of the circle? A. x + 11 B. x − 11 C. x − 22 D. x + 22 I got d please correct if wrong thx.

math

the question is the formula use in calculating depreciation that is reducing balance method which is (1-n√s/c)×100/1 now we were asked to now make each of n,s,and c in the formula the subject of the formula please help me

math

One side of a square is 2x + 5 centimeters long. The area of the square is ax^2 + bx + c square centimeters. What is the value of a + b + c? I litteraly dont undestand this problem at all please help me and guide me throught it.

Math

A car traveling at 25 mi/h accelerates to 48 mi/h over the first 5 seconds. It maintains that speed for the next 5 seconds, and then slows to a stop during the next 5 seconds. Connections answers please?

math

The scale on amount is 2 inches equals 75 feet. On the map a rectangle or park is 8 inches long and 3 inches wide. What is the actual area of the park? Please answer I am confused.

math

Could someone please show me what I did worng in my math questions? any help will be greatly appreciated! I put my teachers response under the questions 4. Solve: 5|2x + 1 | = 55 Divide both side by 5: |2x+1|=11 2x+1=11 and 2x+1= -1 +1 +1 +1 +1 2x = 12 2x = -10 X=5 x=-6 What ...

physics please HELP !

can you please help me with this please. thank you. A small mass m hangs at rest from a vertical rope of length l that is fixed to the ceiling. A force then pushes on the mass, perpendicular to the taut rope at all times, until the rope is oriented at an angle delta and the ...

history

out of growth of schools, racial discrimination, and education for immigrants, which educational development do you think was most important? Explain. Please remember that we are here to help you learn to do your own work, but not to do it for you. Once you have written your ...

food

does anyone know what a manufacturing specification is for food coursework?? im sooo stuck and it has to be in tomorrow =[ please help me :D x Thank you for using the Jiskha Homework Help Forum. Since I'm not sure exactly what you are looking for, I hope the following site ...

Biology

I was wondering if someone could please explain this to me (please don't give me links to websites, I already have a thousand saved under my favourites, I just don't understand how to find my answer from the information the websites have provided). Question: What would the ...

chemistry please help!!

4{C3H5(NO3)2}(l)--->6N2(g)+O2(g)+12CO2(g)+10H2O(g) If a dynamite of 100mL needs 3.5atm to explode, what minimum mass of C3H5(NO3)2 do I need to put in at 25 degree celcius? I tried to do this by finding the number of moles by the formula PV=nRT and then convert that into ...

calculus

I posted this below, and no one answered. Please help with this very complicated question! Using 3(x-3)(x^2-6x+23)^1/2, as the chain rule differentiation of f(x)=(x^2-6x+23). Please explain how I find the general solution to the differential equation dy/dx= 2/27(x-3)SQUARE ...

calculus

I posted this below, and no one answered. Please help with this very complicated question! Using 3(x-3)(x^2-6x+23)^1/2, as the chain rule differentiation of f(x)=(x^2-6x+23). Please explain how I find the general solution to the differential equation dy/dx= 2/27(x-3)SQUARE ...

Algebra

Application problems and converting decimals is not my forte. Please help me? Dick mows the lawn in 7 hrs. Mary can do the same yard in 6 hrs. How much time would it take for them to mow the lawn together? (They are sober btw) 8.26 x 10^7 Convert to decimal notation please. I ...

Visual Basic Programming...Very Urgently!!!

Please Can someone help in proving the code about transactiopn program of images. it must have a two diffetrent form that will perform simultaneously which menas that first form will have login password to log in to use the transaction. Please your help is muchly appreciated.

Social Studies

How did the Supreme Court decision in Worcester v. Georgia and the Indian Removal Act lead to the removal and resettlement of Native American groups? Please help me I looked at every website and information for a answer but I'm new to connections academy and I'm really stupid ...

Science - please please help

1. Explain why conduction, convection, and advection cannot occur in space. ^is it cause there is no gravity in space? 2. Does warm water rise or fall in cold water? Explain why this happens. 3. Explain why rocks and soil are poor heat sinks. Thanks in advance.

chemistry, Please help.

Please tell me where I can find the articles ( free) to represent the Setvens rearrangement and Favorskii rearrangement. I have to have them for presentation but I have not taughed about these reaarangenment yet. I hope somebody on Jiskha will help me to find it. I really ...

Chemistry need response ASAP please

Calculate the mass KHC8H4O4 (molar mass= 204.44 g/mol) that reacts with 15 mL of the NaOH solution. Express this mass KHC8H4O4 to the correct number of significant figures. Please, help I have no idea how to do this. What will the mass be of KHC8H4O4? Thank you for help!

History

Can someone help me find some polls or info on the original LAPD SWAT officers who were wounded and killed in action from the late 1960s-1982 please. And can someone explain to me what anti-SWAT opinions are as well as pro-SWAT opinions please.

Physics Help Please!

A block of mass is moving along the horizontal frictionless surface with a speed of 5.70 m/s. If the slope is 11.0° and the coefficient of kinetic friction between the block and the incline is 0.260, how far does the block travel up the incline? Show step by step please! ...

Physics Help Please

A 35-mm camera equipped with a 40-mm focal length lens is used to photograph a tree 17 m tall. If a 32-mm high image of the tree on the CCD sensor is required, how far should the camera lens be from the tree? Show Work Please! Thank you so much!

Physics Help Please

A 35-mm camera equipped with a 40-mm focal length lens is used to photograph a tree 17 m tall. If a 32-mm high image of the tree on the CCD sensor is required, how far should the camera lens be from the tree? Show Work Please! Thank you so much!

MATH

I have math questions I need to check my answers can you please help me 1. 4x4x4x4x4 as a power of 4 answer 4 to the fifth power 2.a bedroom is 10 ft by 11 ft what is the perimeter? answer 42 ft evaluate 72/8-9/3=6 3.Jamal is fencing a rectangular field that measures 25 ft by ...

Math

(Mix and Match) Instructions: choose an item from (a), (b), (c), (d) or (e) that best matches the given problem. Enter your response in the space provided. (a) single equivalent discount (b) amount of discount (c) 3 / 10 , n / 30 (d) 5 / 10 , 3 / 15 , n / 30 e.o.m. (e) R.O.G...

English-CHECK PLEASE

Ok, I figured this out (I think) but can you please check? Don't worry. I can carry the tent all by myself because it is so light. I do not even need a lantern it is so light outside. In these sentences, the word "light" is used as a: A:homophone B:homonyme C:synonym D:simile ...

math

A parabola has the equation y = 4(x-3)^2-7 Choose 2 true statements: A) The parabola has a minimum value B) The parabola has a maximum value C) The parabola does not cross the y-axis D) The parabola does not cross the x-axis E) The vertex of the parabola is at the point with ...

Math

Please double check me. The last problem I couldn't figure out. Thanks 18. 13/18 + 11/18 = 24/18= 4/3 38. 9/11 – 3/11 + 7/11 = 13/11=2 1/11 44. 7/1 + 12/1 + 21/1= 40/1=40 50. 3/8 + 3/8 + 3/8 = 9/8 = 1 1/8 12, 20, and 35 = 7*5*3*2*2= 420 13/15 – 11/20 = 13/15- 13/75 – 11/...

GRAMMAR

PLEASE CORRECT THE ANSWERS ACCORDING TO THE QUESTION BELOW. insert the prepositions in the following sentences : 1) he was christened Stephen UNDER his father,buthe answer IN the name of George. 2)He has not been heard since for years no one knows what has become to him. 3)do ...

SHSAT-URGENT

Can someone please give me a link for a website or websites that provide shsat student handbooks-other than 2011-2012 and 2010-2011. thank soo much in advance i only have a few more weeks to study and have no resouces please.

Physics

A cube of ice is taken from the freezer at -8.8°C and placed in a 103 g aluminum calorimeter filled with 321 g of water at room temperature of 20°C. The final situation is observed to be all water at 15°C. What was the mass of the ice cube? Could someone please help me get ...

Statistics

Please Help!!! I am having a small Problem Working this Problem. I am just not understanding. Could someone please assist? The lifetime of a brand of DVD player follows a normal distribution with a mean of 8 years and a standard deviation of 6 months. Find the probability that...

Corporate Fiance

Given an annual lease payment of $438,020 find the rate of return earned by the lessor on a 3 year, $1 million (present value) capital lease. Please don't show me how to solve this by using a financial calculator!! Please show me step by step how to do this.thanks

trig 30

Please help I need to solve the following question for x, where 0<x<2pi. and then write a general solution for the equation. The question is 2cos^2 x + cos x =1. I need to solve this using radian measurement. I solved it using algebra and was told I wasn't allowed. Could...

math please help

There are two triangles one large and one small. Write an expression in simplest form for the perimeter of each triangle. Large triangle left side says 4x+2 top says 7x+7 bottom days 5x-4. Small triangle left side says x+3 top says 2x-5 and bottom says X+7. How do I write an ...

Trig Help

Prove the following: [1+sinx]/[1+cscx]=tanx/secx =[1+sinx]/[1+1/sinx] =[1+sinx]/[(sinx+1)/sinx] =[1+sinx]*[sinx/(sinx+1)] =[sinx+sin^2x]/[sinx+1] =[sinx+(1-cos^2x)]/[sinx+1] =??? This is where I'm stuck. Can someone help me. Please check what I got is right so far it's ...

Economics

Can someone please explain what factors affect a country GDP? Also, if Thailand has a GDP of 4.5% and Australia has a GDP of 2.8%, please explain which country has a better economy. Thanks for your help

Algebra-Please help me!

Hi, I'm totally stuck! Problem: sqrt(x-3) = sqrt (2) -sqrt(x) I know I square them to get them out of square roots but after that I'm stuck- answers: -25/8 25/8 no solution 1/8 Please show me how its done Thank you

Organic chemistry

please help me with these what are the functional group(s) in Lexiva (Fosamprenavir Calcium)? i only know that it has an amine group but i'm not sure if there is another group!!! and how can i relate Lexiva to chemistry?(ideas please)

Chemistry

Calculate molarity of HNO3 please help? Calculate molarity of HNO3 prepared by dissolving 22.3 grams of HNO3 in water to make 875 ml of solution... Please help I'm stuck

Algebra please help

1.(9m+6)+(-5m-6) A:4m+12 B:14m+12 C:14m-12 D:4m*** 2.(3r²+7r+1)+(4r²-8r-2) A:7r²+15r-1 B:7r²-r-1*** C:7r²-15r-3 D:-r²-r-1 3.(6h+1)-(9h+4) A:-3h-3*** B:15h-5 C:-13h+3 D:-3h+5 4.(m²-m-4)+(m-5) A:m²-2m+9 B:m²+2m-9 C:m²-2m-9 D:m²-9*** 5.(4x+4)+(3x+2+1) A:7x+3 B:x+7 C:7x...

PHYSICS PLEASE HELP

A fire hose held near the ground shoots water at a speed of 6.5 m/s 1. At what angle(s) should the nozzle point in order that the water land 2.5 m away? -I believe the answer is 18,72 2. Sketch the trajectory for the 18; angle -Please give me exact (x,y coordinates) -I believe...

Physics-Please check if I did this correctly

I posted this question this morning but I'm not sure of the response Damon provided. I did it once but then I updated it later in this at the bottom- please check booth of my answers. If you were in a rotor style ride and the riders accelerate until the speed of ride is ...

Math HELP PLEASE

How many inches a wall in an everyday house might be? Sorry this is for a math portfolio, this isn't the question, but I just need the inches of a wall. I did use measuring tape. I got 22, even though measuring tape, it measured in Feet and Meters. I used another measuring ...

algebra

The price of a sweater is $5 less than twice the price of a shirt. If four sweaters and three shirts cost $200, find the price of each skirt and each sweater. I have no idea how to set up these types of equations..... someone please help its due tomorrow and i cant turn it in ...

Algebra please help..

1. Find P(10, 2). a. 90 b. 20 c. 200 d. 60 Answer: B 2. Find C(9, 3). a. 84 b. 504 c. 210 d. 360 Answer: A Please Answer!!

MATH

Air pressure at sea level is 30 inches of mercury. At an altitude of h feet above the, air pressure, P, in inches of mercury, is given by, P =30e^(-3.23x10-5h) a)Find th equation of the tangent line at h=0. b)A rule of thumb is given by travelers is that air pressure drops ...

urgent!!!words questions

I have alot of questions here but you don't have to answer them all but please help me!They are due on 24/6/05. The male of mare? The citizens of Paris,Netherlands,New Zealand or Malta? The collection name for cattle,wolves,lions,elephants or whales? What animal make a sound ...

math,correction

can somone correct these for me please... Simplify (m^5)^8 My answer.m^40 List the terms and coefficients of 8x^3-4x^2+3 My answer: terms: 3 coefficients: 8,-4 This next one i'm not sure about how to even do it... write 9.03 X 10^-2 in standard notation. standard notation? ....

Math - PLEASE

I roll twelve 4-sided dice. What is the probability that I roll at least one 2? What is the probability that I roll exactly three 2s? i don't knowm sorry the same question was answered by Economist at 4:59

math

If someone is Typeing 360 words at 90 minutes words per minute, is getting paid 10$ per 1800 words a better pay?Please show how you got the answer cause i don't get it.

Math

Look at the Chart below: Then answer the question. Bounce: 0, 1, 2, 3, 4 Height: 100, 50, 25, 13, 6 (cm.) Ordered pairs: {(0,100), (1,50), (2,25), (3,13), (4,6)}. * How high do you think the ball will bounce on the 5th bounce? Explain. Please Help!! Thank you!!

Math(Please help)

Use the fundamental identities to simplify the expression. csc Q / sec Q so this would be 1/sinx / 1/cosx and then 1/sinx times cosx/1 = sin x cosx Is this correct so far? If it is I do not know what to do next.

Help please? Math!

Let W represent the width of a rectangle, the length if 7cm more than the width. I have to write the answer in a algebraic expression, but I don't know how too Here is the question: 1. 7cm less than twice the width?

5th grade math

what is the range for the following number? 900,700,500,600,600,300,600,200,100,200? pleASE! EXPLAIN HOW TO SOLVE THE PROBLEM..

5th math

Mr. davison has 30 students in his class . He has four more girls than boys. How many boys are in Mr. Davision class? can you please check my answer? I got 11 boys . does it sound about right ?

math

A car license plate consists of 6 characters. The first 3 characters are letters excluding I, O, Q and U. The last 3 characters are any of the numerals 0 to 9 inclusive. How many different license plates are possible? Please show your work.

math

A car license plate consists of 6 characters. The first 2 characters are any letter. The last 4 characters are odd numbers from 1 to 9 inclusive. How many different license plates are possible? Please show your work.

Math

For the question below can you please help explain why this survey question might lead to an erroneous conclusion thank you. SURVEY QUESTION: “Do you think that it is not important to give extra tutoring to students who are not failing?

Math

1) Let f(x)=9x-2;g(x)=under square root 3x+7. Find each of the following. A) domain of (f+g) B) domain of fg C) domain of f/g (my answer is all r real number am i right?) 2) Let f(x)=3x-2;g(x)=5x+1. Compute the indicated value. A) (fogof)(2) i don't get the answer.please help ...

Math 12A

Each side of a square is 20cm. Four points on the sides are joined as shown to form an inner square. What is the minimum area of the inner square? Can anyone help with this using quadratics? Please!

Math- PLEASE HELP!

Sarita works 2 days each week. If her office is open 7 days each week, use pascal's triangle to find the probability that she will be scheduled for Wednesday and Saturday next week. A. 2/7 B. 1/14 C. 1/21 D. 1/42

Math(Please respond, thank you)

The original equation was 1.7e-3 = (0.0015 -x)^2 / (0.025 +1/2x)(0.025 + 1/2x) Square root of both sides is 0.0412 = (0.0015-x) / (0.025 + 1/2x) Solve for x and when I put in -0.001 or 1.0e-3 it says that it is incorrect, I don't know why??

math

micheal drew a triangle with the sides measuring 12.5cm,30cm,32.5cm. using the pythagoream theorm determine of micheals triangle is a right triangle. explain. PLEASE HELP ME WITH THIS ONE!!

Math

For a track and field athlete who can jump vertically, his distance above the ground is given by the formula s = 3.3t - 4.9t2. What is his initial velocity? velocity in m/s = My Answer S'= 3.3-9.8t S'(0) = 3.3 velocity in m/s = 3.3 Can you please confirm this answer Thanks

math

Fay's rubber ball bounces exactly half the height from which it is dropped. she drops the ball from the top of a building that is 64 meters tall. how high will the ball bounce on its eight bounces? please help me

math 2

Ms. Angelino made 2 pansof lasagna and cut each pan into twelfths. Her family ate 1 and 1/12 pans of lasagna for dinner. How many pans of lasagna were left? Please anser asap. thanks

math

Can u please make an equation for this? : the club members need 686 cm of denim for rag dolls. They need 438 cm of denim for bean bags. How much denim is needed in all?

MAth

Malcom has 1/2 gallon of soup. He pours the same amount of soup into 8 bowls. which equation represents the fractional part of a gallon of soup, n, in each bowl? Please he;p solve with the letter n. thanks

MATH

The shape is an equilateral triangle. a)Does the shape have rotational symmetry? If so,identify the angle of rotation. b)Does the shape tessellate? I don't know what to do for the first part.But I think part B is yes because it has no overlaps or gaps. Please help

math.help pls

A line segment with endpoints A(–4, 3, 2) and B(5, –6, –1) is translated first 2 units back, 3 units right, and 1 unit up. The image is then translated 7 units to the left. What are the coordinates of B´? A: (3, 4, 0) B: (3, –10, 0) C: (5, –6, –1) D: (–4, –10...

math help please

What type or graph does not show the number of times a response was given? A. Box_and _whisker plot B. Line plot C. Stem and leaf plot D. Bar graph Is the answer A?

Math

Whoever can help with a question I posted earlier. I am very sorry; I put the wrong variable in the question. Question is to solve for y and not "x" as my previous message and the equation is: x = 3(r + ty) So sorry for the confusion. Please help at your earliest. Thank you.

math

A man buys 120 oranges at 6 a rupee and 12atmore at 5 a rupee and he sold the whole lot for 4 a rupee. What was his total profit and profit % ? Ans- Rs16, 36 4/11% Please help me to get the right solution of it.

math

marching band wants to creat a square on the field using all the band members. If there are 169 members in the band, how many sgould be in each row? 1.12 2.15*** 3.13 4.11 Please tell me if im correct or not and Im in brain honey.

math grade 11

i need help with this quretsion ; i don't know if im right, and i dontknwo what do next question expand and simplfy: 4√7(2√3 + 3√6 - √7) my work = 8√21 + 12√42 -4√49 please help me

math grade 11

i need help with this quretsion ; i don't know if im right, and i dontknwo what do next question expand and simplfy: 4√7(2√3 + 3√6 - √7) my work = 8√21 + 12√42 -4√49 please help me

MATH

i need to write each expression as a product of the same factor: * = multiply can you check these please a^2 i got a*a 19^3 i got 19*19*19 -6^2 i got 6*6*-1 -x^3 i got x*x*x*-1 (-5)^4 i got (-5)*(-5)*(-5)*(-5)*(-5) 4^3 i got 4*4*4 -(10)^2 im not sure how to do?? 20^1 i got ...

math

Please check 6 more than a number n 6(n)+9 A number m multiplied by 7 7xm 9 less than a number w 9-w The sum of a number a and 9 9+a A number k minus 7 K-7 5 times a number h,plus 12 5*h + 12 5 increased by a number g 5+g

english

Correct each run-on sentence. Combine each pair of sentences into one sentence. You can make compound subjects, compound predicates, or compound sentences. Lee prepared a slide for Ann she observed tiny plants. Can you help me please to get example, please!!!!

English

Could you please check these sentences, please. Thank you. 1. Connect the sentences with a relative pronoun and make any necessary changes. 2. Write in brackets the relative pronouns that can be omitted. 3. Complete the sentences with a suitable word. (8 pts) pts stands for ...

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