Math(Please help)

184,813 results, page 76

Math content exam

Has anyone taken the Mathematics Content Exam 115 for Teacher's in the state of Illinois? Please give me tips or help. Thanks!

Math HELP!

1. Write 12/32 in simplest form. Could someone please help me on how I can turn this fraction into simplest form like explain the steps! Thanks.

Math

I am having trouble figuring out the below problems. 1. 380 dm= m 2. 90.51L= cL 3. 450mg= g Please help me figure out the below

Math

Jane buys a coat that is $18 off the orinigal price. This is a 30% discount. What is the original price of the coat? Please explain how to get answer? Thanks

Math

tossing a coin tails up or rolling a number less than 4 on a number cube. I got 1/2 + 3/6 and got 1. The answer is 3/4. I don't understand what to do. Please help.

math plz help ;-;

Solve the following equation: -2(x-3)+4=8x-20 please help me how to do this step by step plz i do understand how to do this, sorry ;-; And thank you for the ones the helped me with the other Q :D

Math, Please Help

Describe a scenario where you expect a set of data to have A.) a large standard deviation B.) a small standard deviation

Math

Please help!! Suzie is five years older than paul. She is 7 years older than peter. The sum of their ages is 21. How old is each person.

math

Tommy walked 3 2/7 miles. write the distance Tommy walked as an improper fraction. A.4 B.4/3 <<my answer<< C.5/2 D.23/7 please tell me if B is right.

Math

Write a list of steps that are needed to find the measure of angle B. A measures 72 degrees and C measures 113. What does B measure?! Please help!

Math

How is combing radicals by addition and subtraction similar to combining monomial expressions by addition and subtraction? Please use examples.

math

Walmart's net sales for 2015 were 485.7 billion dollars. What were their average net sales per hour? please help.

please check my math

2/3 + 1/5= 13/15. Is that right or can it be Reduced? You're good to go. That is correct... and 2nd question: It can't be reduced.... Good Job!

Math-- PLEASE CHECK

234 - 145 3/4 233 4/4 -145 3/4 ___________ 88 1/4 or am I wrong? How do I solve this if I am wrong? Thank you!! you're correct

math

[(x-9)/(x^2-9)]-[(1)/(x+3)] I got (6-x)/(x+3) for answer. [(2)/(y-3)]+[£¨4£©/(3-y)] I got (-2)/(y-3) for answer. I'm not sure about the answers, please check them for me and correct me! THANKS A LOT!

math

[(x-9)/(x^2-9)]-[(1)/(x+3)] I got (6-x)/(x+3) for answer. [(2)/(y-3)]+[£¨4£©/(3-y)] I got (-2)/(y-3) for answer. I'm not sure about the answers, please check them for me and correct me! THANKS A LOT!

Math calculate depreciation

please explian how to calculate depreciation for federal income taxes what method do I use thanks :)

Math

A board 7 3/8 inches is cut to 3/4 of its size. What is the size ? _______ inches? I need some help starting this Please.

Math

Please help, Locate one other point on the trend line. Then find the slope of the trend line. ...How do I do that?

Math

The distance on a map is given. Find the actual distance, if the scale on the map is 1 in.=60 miles. 2 3/4 in. Please help! Thank you in advance.

Math 116 algebra please check

Solve the following system of equations x + 6y =4(1) x = 9-6y (2) What is the solution of the system N There is no solution

Math: Direct Variation

what are the formulas that illustrates direct blinear variation ?? please help me !! i can't find any formula !! .. humpf .. :(

Math

A(-11,8)B(2,-6) and C(-19,-8) are the vertices of Triangle ABC. N(X,Y) is a point on AC such the BN is Perpendicular to AC. Find Area of Triangle ABC. PLEASE HELP!!!

6th grade math

Will some please help me figure this out??? ?x?/?+?x?/?-?=6 You can only ues these numbers to figure this out, 2,4,5,7,8,9,10

6th ggrade math

Will some please help me figure this out??? ?x?/?+?x?/?-?=6 You can only ues these numbers to figure this out, 2,4,5,7,8,9,10

Math-LOGS

Express x in terms of a,b and c. log x = 1/2 (log a + log b - log c) Please solve and explain how to do this type of problem, thank you!

Math 9

-10/3k = -7/12 i'm stuck with the negative signs, Can someone explain to me how to do this step by step and teach me what to do with the negative sign! Please and thank you!

Math

Can someone please explain (cos(x)+sin(x))/(cos(x)-sin(x)=sec(2x)+tan(2x). I have no luck with this. Thanks

Please help - math

A particle is moving so that its velocity, v(t) = t-64/t^2 for 2≤t≤6. find the total distance traveled by the particle.

Math

The following equation has a positive and a negative solution. z-1/z+1 = 2/z+4 I need to find the positive solution, any ideas please?

Math

Please help... What is the principle of powers? When solving a radical equation how do we use the principle of powers to eliminate radicals

Math(Please check)

Find the center (h,k) and radius of the following circle. x^2 + y^2 - 6x - 2y + 1 = 0 My answer is center= (-3,-1) and radius of 1. Am I correct?

math

completing the square 3x^2 +15 -33 =0 a=3 b=15 c=-33 -15+or- sqrt225-4*3*-33/2*3 -15+or-sqrt225+396/6 is this right because don't you have to subtract not add the 396 please help. thanks

5th grade math

I need help with this problem ! 5 2/5 - 3 4/5= ? 6 1/10 - 3 4/10 = 10 - 4 2/5= ? PLEASE! SHOW ME EACH PROBLEM STEP BY STEP SO , I CAN FINISH MY HOMEWORK! THANK YOU!

Math - Domain of Composite

Find the domain of the composite function . Please show all of your work. f(x) = sqrt(x); g(x) = 2x + 12

Math

is this the correct answer? I might post more on this exact post, so please bare with me? These are proportions 1.) 2:5 = 4:y Answer: y=2

Math

How many two block towers can you make from: 1 black block,1 red block, and 1 blue block? Please explain.

math

5 items = a mean of 98 6 items =mean of 102 possible anwers 25,24,117,122 please show how to do

math help please

Helen has$1.35 in her bank in nickels and dimes. There are 9 more nickels than dimes. Find the number she has of each kind.

MATh please help

Helen has$1.35 in her bank in nickels and dimes. There are 9 more nickels than dimes. Find the number she has of each kind.

math calculus

7/(x-2)(x+5)-8/(x+5)(x-3) 7(x-3)-8(x-2)/(x-2)(x+5)(x-3) 7x-21-8x+16/(x-2)(x+5)(x-3) 7x-8x give me -1x and -21+16 give me -5. for numerator but it have to be -1/(x-2)(x-3) i not know how to do this please explain process my way not different way.

Math

Find the derivative: y = square root of x(x+14). The square root is only on the x. Please show work and explain. I don't know how to do this. Thanks!

6th Grade Math

PLEASE HELP ME!!!!! I need to answer this equation: 9/2m-8=-5.5+4m I need it answer in a way like this: Ex: 9+5k=45+2k 0peration S 9 5k=36+2k S 2k 45+2k D 3 k=12

Math 8R - Help!!!!!!!!!!!!!!!!!!!

14. Subtract -5 from -14 -14 - (-5) 16. Subtract -6 from 18 18 - (-6) 18. From 14 subtract -2 22. Subtract 17 from 8 I already know how to solve this just have trouble formatting it. How do I do it for number 18 and 22???? Please help

Math

What is the area of a square with the same perimeter as a regular hexagon with area 24 square root of 3. Can you please help me wodrk this?

math/calculus

solve the equation loga(x-5)- loga (x+9)=loga(x-7)-loga(x+9) all a's are lower please show work

math

Dan has 5 lb of rhubarb. He has 4 rhubarb recipes, and uses 1/4 of his rhubarb in each. How many pounds of rhubarb are in each recipe? Please answer and explain.

Math

Find sec θ and csc θ. If tan θ =3 and cos θ>0. Please helpp, i don't get identities

Math: Please check

What is the simplified form of square root 48n^9? I think the answer is: 3n square root 4n^8. Thank You

math

A parallelogram has an area of 8x^2 - 2x -45. The height of the parallelogram is 4x + 9. I know the formula for a parallelogram is A=bh. Please work and explain how I get the length of the base of the parallelogram. Thanks

math

solve and check your answer. Please check this for me to see if I have the right answer. __2__ = __3__ 1-x 1+x x= 1/5

MATH - PLEASE HELP

A biased coin is tossed 5 times where p(t) = .6. determine the probability that if you have 2 tails, you have 3 tails.

Math

Could someone please help me write an equation of the line containing the given point and parallel to the given line. (6,-9)4x-5y=8 Y=?

Math. Urgent please help

ABC is an isosceles triangle. If AB =AC =16, BC=8. D is the midpoint of side AC , and G is the centroid of triangle ABC , find BD .

math

write the pair of the fractions as a pair of fractions with a common denominator : a.) 2/4 and 7/8. b.) 3/10 and 1/2. my answer for the a.) is 16/32-28/32. for b.) is 6/20-10/20 please let me know is my answers is right or not

math

I need help on how to use a common denominator to write an equivalent fraction for each fraction?number 1 is 1/2,1/3 and number 2 is 7/8,3/10 please help

math-urgent

Sample space ={1,2,3,4,5} p(1)=0.1, p(2)=0.2 and p(3)=p(4)=0.05. Assume that A={1,3,5} and B={2,3,4}. Find p(5). Find p(A^c). I need help with this question. It is a probability question. please help.

Math 2

Two friend share1/2 of a pineapple equally. What fraction of a whole pineapple does each friend get? Please answer

Math

How do you solve 2y-5x=10 using the dual intercept method? I have to solve for X int and y int on a graph. Please help

math

(please solve step by step) solving equation (6x+2)/4 + (2x²-1)/(2x²+2) = (10x-1)/4x we got roots as

MATH HELP PLEASE

Which of these numbers can be classified as both real and irrational? a. 5.85 b. 63.4 c. square root 21 d. square root 36 Is the answer D?

MATH HELP PLEASE

Which of these numbers can be classified as both real and irrational? a. 5.85 b. 63.4 c. square root 21 d. square root 36 Is the answer D?

math

an average sized dog weighs about A. 15 grams B. 50 grams C. 5,000 grams D. 15,00 grams I don't know the answer, please help

5th grade Math

Is the Distributive Property of (5*600)+(5*400) (600+400)5? I'm not really sure...please help...

Math

solve the proportion using cross products. 20 miles/60 hours=16 miles/h hours? a.20 b.40 c.48 d.64 ??? thanks in advance:) please help!!!

Math

9 friends share 12 pounds of pecans equals how many pounds of pecans does each friend get? Please answer soon! :-) :-( :-(

Math (written answer)

C/4-5=4 (c over 4) Please explain how to do this, its a written answer questen and I have no idea how to do it at all..

MATH HELP ASAP PLEASE!!!!!

the formula of a volume of a cube is v = s3. find the volume of a cube with a side length of 3/4 inches.

Math

A biology class has 12 boys and 18 girls .what fraction of the class are boys? Solution. 12/30=2/5 Please tell me this correct or not.

Math

The point (2, 3) is on the graph of y f(x). Determine the corresponding coordinates of this point on the graph of y= 2(f(2(x + 5) 4. Please include a full solution! A: (1,3),(1,6), (1,-6), (-4,-6), (-4,-10)

Please Help asap: Math

X is greater than or equal to 3 I'm pretty sure that its D, but i'm not sure 0=open dot @=closed dot A) @-------> 3 5 B) <-------------0 -5 0 3 C) <-------------@ -5 0 3 D) 0-------> 3 5

Math

I need help solving this math problem, please: Problem: Angela's math test had 100 multiple-choice questions. Each correct answer was worth 1 point, each incorrect answer was worth -2 points, and skipped questions were worth 0 points. Angela answered an even number of ...

math help

I need help solving this math problem, please: Problem: Angela's math test had 100 multiple-choice questions. Each correct answer was worth 1 point, each incorrect answer was worth -2 points, and skipped questions were worth 0 points. Angela answered an even number of ...

please check my answer

please check my answer thanks :) You are the manager of The Candle Shop using the FIFO method of inventory pricing, what is the dollar value of the ending inventory if there were 17,000 units on hand Dec 31 Show all of your work Jan 1 5,000 @ $0.89 Feb15 10,000 @ $0.69 April ...

math URGENT PLEASE HELP

can you please explain this question to me for part b i get t=0.7 by trial and error and 0.6 percent of the population but im sure theres a more exact way to do it (a) A chemical process produces NaCI at the rate 3.Jtgrams per minute. (i) What is the rate of production 4 ...

Algebra one help, please.

Determine which lines, if any, are parrell or perpindicular linea= y=4x line B= y=-1/4x line c= y= 4x-1 I think line B and A are parrell. Am I correct? Please help me, thank you.

geometry

8. iN triangle ABC, a point D is on AC so that AB=AD. ANGLE ABC - ANGLE ACB = 30. IND ANGLE CBD. PLEASE TELL ME WHAT TO DO. I BEG YOU. PLEASE

Please help

A rectangular picture frame has a perimeter of 58 inches. The height of the frame is 18 inches. What is the width of the frame? Please help show work and help answer thanks

PHYSICS PLEASE SOMEONE HELP ME OUT

When an object is placed 55.0cm from a certain converging lens, it forms a real image. When the object is moved to 45.0cm from the lens, the image moves 6.00 cm farther from the lens. Find the focal length of this lens? Please someone help me out I tried so many times i keep ...

Precalculus(NEED HELP ASAP PLEASE!!)

cot(theta)= 3 pi < theta < 3pi/2 Find: sin(theta)= -1 ? cos(theta)= -3 ? tan(theta)= 1/3 ? sec(theta)= -1/3 ? csc(theta)= -1 ? That's what I came up with, but they are not correct, PLEASE help me where I went wrong!!

Math

Lee Holmes deposited $16,600 in a new savings account at 9% interest compounded semiannually. At the beginning of year 4, Lee deposits an additional $41,600 at 9% interest compounded semiannually. At the end of year 6, what is the balance in Lee’s account? I have tried and I...

CHEMISTRY HELP PLEASE!!!

The cell potential of the following electrochemical cell depends on the pH of the solution in the anode half-cell: Pt(s)|H2(g,1atm)|H+(aq,?M)||Cu^2+(aq,1.0M)|Cu(s) what is the pH of the solution if Ecell is 375 mV? I first got .65 as my pH, but it said that it was wrong. ...

Math

6. Vangie had 0.75 ream of bond paper. She used 0.25 of it in her project. What part of the ream of paper did she use? Please answer this question.\

Math

Please help!!! 1. Simplify...w+3/4w divided by w-3/2w to divide one fraction by another, keep the first fraction as is, then multiply by the reciprocal (flip) of the second one. so... (w+3)/(4w) ÷ (w-3)/(2w) = (w+3)/(4w) x (2w)/(w-3) = (w+3)/[2(w-3)] Thank you!!!

Math

Please check my answer thanks :) When repaing an installment loan of $3,500 with 20 equal monthly payments of $196 each , the apr of the loan is my answer is 13.5 %

Math - Inverse Functions

Find the inverses of the following functions. y = 3(x - 1)^2, x >= 1 Work: x = 3(y - 1)^2 x = 3(y - 1)(y - 1) x = 3(y^2 - y - y + 1) x = 3y^2 - 6y + 3 And now what do I do!? Please explain and show me how to solve this inverse function! ... Thank you

math

{y-2}/(a^2-5a+6)=(a+1)/(a-3)-(a+2)/(a-2) How can I solve for y in terms of the other variables??? I tried many times, but I just get y=6,can't express y in terms of variables. Can anyone please correct me or teach me?THANKS A LOT!

Math

Xavier and Yolanda have a combined aged of 24. 6 years ago Xavier was 3x as old as Yolanda. Can you help with the equation and the working out please.

math

Is there a formula to sum the digits between two numbers? eg. 1 to 20 = 1+2+3+4+5+6+7+8+9+1+0+1+1+1+2+1+3+1+4+1+5+1+6+1+7+1+8+1+9+2+0 = ?? I am looking for the numbers 1 to 2008 so I really need a formula! Please help, thank you. Jane

math

how would you determine a conic represented by the polar equation r=a*cos(x)+b*sin(x). then how would you convert the equation to rectangular form? please help

math

the question asks to integrate cos(t)/(5sin(t)+8)^2 the answer i got was xcos(t)/(5sin(t)+8)^2 i think the x is wrong but i am not sure what i am doing wrong...help please.

Math(Please check)

1) Use the cofunction identites to evaluate the expression without the aid of a calculator. cos^2 18 degrees + cos^2 72 degrees.

Math

Could someone please help me with this problem? I need to solve -5/2x greater than or equal to -7/4. Here is the answer that I got but I 'm sure that it is not correct. x greater than or equal to 35/8. Thanks.

Math

Please explain why a positive number minus a negative number equals positive and you add it together??? Makes no sense at all. ex 10-(-3)=13

Math 5th

i need help in a hurry!!!!!!! I need to know what the fractions-one half and so on until one fourth us equal to bye tomrrow!!!!!!!!!!! please help!! :)

8th grade math

Can you please check my answer? Selena received $42 commission for selling a computer for $1400. What percent is her commission? my answer: 3%

Math

which of the following sums is larger and by how much? round your answer to 4 decimal places if necessary 1. 7 over Sigma 15/4(pi/10)^n 2. 11 over Sigma 17/4(4/13)^n please help!

Math - Please Help

Find two positive fractions such that if we switch the denominators, the sum afterthe switch is 50 times the original sum.

Math(Please check)

Determine whether on not the following limit exists. If, so compute the limit. lim x->3 of sqrtx - 4 / x^3 +27 sqrt 3 - 4 / x^3 + 27 = sqrt 3 -4 / 54 Is this correct?

Math(Please help)

The radius of a niobium atom is 131 pm. How many niobium atoms would have to be laid side by side to span a distance of 1.4 mm?? I know that 10^9 is pm or is it -9??

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