Math(Please help)

185,959 results, page 52

Math

Find the standard equation of the circle concentric with x^2+y^2-12x-10y = -12 and has a diameter of 10. I have been trying to solve this all day, can you please help me :(

Math

Calculate the sum of the infinite series 72 + 60 + 50 + 125/3 + ... 489 432 360 307 Can someone please help me with this one? I can never solve these on my own:(

MATH, please help

So this is a "Challenge" (we don't have to do it but my mum is making me) we haven't learned it, it's only if you want to do anything harder or more difficult. 1.explain why the ratios 6/9 and 8/12 are in proportion

Math

Find the compound interest on rs 64,000 for 1 year at the rate of 10% per anum compounded quarterly. Could you please do it fast I need to give it tomorrow.

Math (please check my answer)

Write a proof for the following. I have 2 answers but I don't know what the other 2 would be? Can anyone help?i68.tinypic(.)com/k2nw9.jpg

Please help (MATH)

If two fair dice are rolled, what is the probability that a total showing is either even or less than eight? How would I solve this question? What are the steps? Thanks

Math

The store usually sells the baskets of fruit for 15 dollars but today they have a 5% discount which is the new price. Please help me i am totally confused on what is going on.

Math

What is the area of a rhombus with: Side=8 cm Acute angle between one pair of sides=30 degrees Please don't use trigonometry as I'm in Class 7. Thanks in advance.

Chemistry!! Please Help!

A 0.285 M solution of the sodium salt, NaA, of the weak monoprotic acid, HA, has a pH of 9.65. Calculate Ka for the acid HA. I think I am having issues with the equation and then the math part. I figured out what 'x' was from the pH, which I believe is 2.2x10^-10, but when I ...

math

missed this in parade magazine, please answer for me man owns cows and chickens that total 30 when the son couned them his answer was 74 legs how many chicken did the farmer own x=cows y=chickens x+y=30 4x+2y =74 please finish for me Solve one equation for one variable. Take ...

Math (Check answers, please.)

Hello. I am having some difficulty with this problem. Could you please check my answer? You start searching for a buried object by marking the center of a field as (0, 0), with coordinates giving distances in yards. Coordinates to the north or east are positive, and ...

math

John's account of 98.50 has been delinquent for 3 months. After 90 days office charges a 2% service charge, compounded monthly that is added to future bills. What would be the amount owed after 9 months? My math is 98.50 x 0.02 = 1.97 1.97 x 12 months = 23.64. Take 3 months ...

Physics (SO CONFUSED!!!)

I think I'm using the wrong formulas or SOMETHING... Here's the question: "Two equal charges are separated by 3.7 ´ 10^-10 m. The force between the charges has a magnitude of 2.37 ´ 10^-3 N. What is the magnitude of q on the charges?" Here's my work: F = kc(q1q2/r^2) 2.37 x ...

Pre-Calc

Please check answer and help with one of them: 1. check please car in an accident speed of car is the s, d is length of skid=30 feet f is coefficient=0.5 use formula to find s=sqaure root of 30*f*d My answer is 21.21 because I took square root of 30(0.5)(30) 2. this one is ...

Pre-Calc

Please check answer and help with one of them: 1. check please car in an accident speed of car is the s, d is length of skid=30 feet f is coefficient=0.5 use formula to find s=sqaure root of 30*f*d My answer is 21.21 because I took square root of 30(0.5)(30) 2. this one is ...

Chemistry (1Question)

This is really confusing. I know how to do the equilibrium which also has to do with reaction rates but they didb't give it to me as a choice. Please Please help me. I post other questions that i answered already but no one answered me. I just needed someone to check them for ...

math

can u please help me with this math problem. i don't get how to do this question. Mrs. Mabie has a rectangle swimming pool that measures 25 feet by 14 feet. She wants to have a cement walkway installed around the perimeter of the pool. The combined area of the pool and walkway...

social studies

i have a crossword puzzle but i have one word i can't figure out.the clue: the------i- coastal plain is a strip of land that begins in the norteast and runs along the east and gulf coasts.please help me. http://en.wikipedia.org/wiki/Atlantic_Coastal_Plain can you give me an ...

Math

Can you please check my answers. Determine whether the function is a polynomial function. f(x) = 4x + 4x^5 -Yes f(x) = 4 - 1/x^2 -No

math median

please tell me hoe you find the median in a group of numbers :)

Math

how to use grids to mutiply decimals by decimals. please give example

Math

Please help I have the answer to the problem but can figure the steps to solve it. 1/4 = 3 - 2x-1/n+2 I know the answer is -26/3

math....please help....so desperaTe...

what is the coordinate of a rectangle with a vertex at (1,2) and dimensions 3 units by 4 units.....

Fractions/Math

7/8 divided by into 3 1/2 please help I got 0.014 is this correct and 2 1/4 divided by 1 1/7

Math

Divide by long division divide x^3+4x^2-3x-12 by x^2-3 I am a bit confused. Please explain!!

math(integers)

Ok so i need help with subtracting integers because i am lost some please help me fast!

Math

Can someone please show me how to find an answer for this? I forgot how to add them to get the answer. 2x +12= 6x +4 =

math

what is the the diameter of a circle in km if the area is 5.65 miles? i don't know how to convert miles into km so please help.

MATH

the circumference of the peg is 3 in.will the peg go through the hole that is 1 in.? Explain. please help i am confused

Math (URGENT)

Write and simplify the expression. My answer: 2x +(x+3)(x-2) = x^2-x-6 Textbook Answer: x^2-x-2 Please help. Thanks.

Math

Solve. x-6/x-9=3/x-9. I came up with a answer of -2/3 but I don't think that is the right answer. Could someone please help? Thanks.

math

solve equation if equation has no solution state so,simply when necessary 2/3x+1x=1/6 1/x+4-1/x-2=x+2/x^2+2x-8 help me please

Math

Find the domain of the function g(x)= 1/6-5x I know that x is a real number but I need the domain please.

math

how do you solve these problems? 1.2x/3 + 1/3 - x/8= 2/3 2. 3n + 9/10 + n/5= -2 3/10 3. 3k/4 - 28 - 2k/3 = 37 thank you can you please show me step by step how you got the answer?

Math Algebra

Please help Solve by the elimination method x+7y=54 -x + 6y=37 The solution is (___,___)

math-please check my answer

Find the slope of these two points (3,5)and (-5,-2) Is the slope 3?

Math-please check my answer

Find the slope of the following points(8,9) and (10,-9) -9 - 9 / 10 - 8 = -18/2 = -9 is the slope?

Math/Please HELP!!

Find the vertex for f(X)=-x^2+8x+6 My answer is (4,22)Is it correct? If I am correct then what is the line of symmetry?

math subject

make (a) the subject 2a+ã2a^2=10 please and thank you (the 2a^2 is all spuare rooted)

Math

How do you do this Simultaneous Equation? 3x+4y=14 x+y=3 Please give me the step by step solution. Thanks a lot!

Math

please go step by step to better understand if 2f(x)+f(1-x)=x^2 for all real numbers, the f(x)=?

Math

A triangle has sides with lengths of 3x, 5x, and 8x. Express the perimeter of the triangle in terms of x. Please help!!!

math

hi i made a typo in my last question can u please show me step by step how to simplify [(x^3/y^3) -1]/[(x^2/y^2)+(x/y)+1]

math

i only need help on these two that's it so please help me(step by step if you could) 1)1.5x-2.5y=8.5 6x+30y=24 2)3x-2y=8 x+3/2y=8 THANKS SO MUCHHHHH!! :))))

math

if 65% of students are wearing t shirts and 48% are wearing jeans is this possible? Please explain.

math

Please help my equivalent fraction. I am greater than 1/5 and less than 1/2. My denominator is between 2 and 4. What fraction am I? Thanks for the help..

math

the volume of a container that is 8" long 4" long and3' high is _cu in. please help

math

please help I have no ideal how to do this convert the numeral to a numeral in base 10 8B3C0 16

Math

Please help me with the two given questions. 1] find lim 3x^2-4x/7 x-->0 2] lim sinx/2x x-->0

math

please help with daughters homework show 25 broken key is 5 show in 3 ways

math ASAP

please explain how to use doubles plus 1 and doubles minus 1

Math( help please ! )

For what values of k will the function f(x)=3x^2+4x+k=0 have no zeros, one zero, 2 zeros

math

can someone please help me understand how to get a z score. For example I have to find the z score for: x and y and x is 2 and y is 3

Math please help urgent !

Find the slop of the tangent to the curve y=(10-sqrt x)(5+sqrt x) at x=25

Math jss 2

Please draw a number line from -7 to+7 on the line and mark the pointr a(6)b(5)c(-4)d(-6)e(5)

8th grade math

2x=y+1/2 how do you turn this equation into an equation that is ax+by=c? Please help and explain. Thank you.

Math problem

having problems working this problem out please solve 49 5/2

7th grade math

Could someone show me how to do this please? 26.2% of a certain number is 81. What is the number?

math

how to simplify the following,please step by step 56x^7+21x^4+63x^3

math

how do i simplify the following? -19-11a+9+16 thats negative 19 minus 11a plus 9 16. please help!!!

Math

How do you do ratios? And whats the easiest steps i can follow that will help me do and understand ratios? please help.

math. solve for t

1/1024=42*0.5^(t/12.5) Solve for t. Please show work. Much appreciated!

Math

I am having a hard time doing equivalent fractions. Would 3/5 of 2/9 be equivalent? Please help

math

numbers that have a tens digit greater than 5. Please chose the numbers 44 75 21 16 93 67 88 82 6 90 77 34 92 42

math

what is the square root of 6,multiplies the answer bt 2 and then squares that answer.please explain,thanks

Math 8R - HELP!

Multi-Step Equations Systems of Equations x + y = 0 5x + 2y = -3 this is what i got so far.... x + y = 0 ----> x = 0 - y 5x + 2y(0-y) = -3 please help!!!!

Math-Please Help

A piece of iron weighs 45 oz and has a volume of 10 in^3. Determine the density of iron in g/cm^3.

Math

Hi, could you please provide a step by step solution explaining how to do this: [(a^2 - b^2 + a + b)/(a - a^3)] x [(1-a^2)/(a - b + 1)] The answer should be (a + b)/ a Thanks

Math

Parallrlogram that is 3 cm measuring 110 degrees and 70 degrees. Please show drawing.

math

can someone help me and expalin how to do these five question please and thank you 11. y = ½ x2 +2x – 3 27. 3x2 – 5x = -3x2 + 6 33. x2 + 10x = -8 45. x2 – 6x + 9 = 0 47. (-3,0),(1,4),(-1,6),(2,0)

MATH FACTOR POLYNOMIALS

Factor the polynomial. Please show all work. x^2+2x-3

Math

Solve by elimination: 5x+7y=77 , 5x+3y=53 can you please help me out step by step so I can understand it on my own, thanks.

math mrs sue help!!!

-4h greater than 7h what can you multiply -4 to be greater than 7 please show your work

Algebra

Could you double check my math problem please? Thanks 4) −15 + n = −9 MY ANWSER: 6. Thank you :)

Math

simplify: cos(sin^-1(x)) Can someone please show a step by step of how to do this.

Math - Algebra

Evaluate t - u/v when t = -1, u = -3, and v = 1/2 I am VERY VERY unsure what the answer is. PLEASE HELP!!! I am stuck on this!!!

MATH

Show that C is an integer C=16*25-32*75/64*6*16 16(25-2*3*25)/16*6*64 25(1-6)/6*64 -125/384 -0.3255208 Which is a decimal and not an integer. Please help.

Math. Please help :(

Write a translation rule that maps the point D(7, -3) onto point D'(2, 5)

Math

Solve the following systems of equations: -2x+y=1 -4x+y=-1 (3,1) (-1,3) (-1,-3) (1,3) Could someone please help. I'm confused on how to solve this. Thank you!

Math

If f(u)=u+1/(cos^2u) , u=g(x)=pi(x), x=1/4 , find the derivative of f(g(x)). I can't seem to get this one, step by step please?

Math

1) Given that p(-3), p(-1), and p(5)=0, which expression could be p(x)? A)x^3-x^2-17x-15 B)x^3+x^2-17x+15 C)x^3-3x^2-13x+15 D)x^3-9x^2+23x-15 How do I solve it? Please help

math

which is equivalent to the expression shown? 10^2 • 5^2 2,500 250**** 500 200 please help

Math

Please solve y=3x2 the 2 represents the exponent, because I don't know how to place the exponent in the equation.

Math

Suppose f (x) = x^3 + x and g(x) = f^-1(x). Find g'(2). I am confused about how to find the inverse of f because I can't isolate y. Could you please help? Thanks!

math

wx + zy = c Solve for y. I don't understand this. If you know what Carnegie is, then you would know I don't really understand. So please help me. help me with the steps

** Math - PLEASE help!!

Find all real zeros of the function: f(x)=-2x(x^-16)(x-3) I appreciate all help. Thank you.

Math

For f(x) = 3x + 4 and g(x) = x - 1. Calculate (f o g)(x). For f(x) = 3x + 2 and g(x) = x². Calculate (f o g)(-2). Consider the function. f(x)= -2x+1. Find the inverse of f(x). Please help! How do I solve this?

Math

There are 144 people in an audience. The ratio of adults to children is 5 to 3. How many are adults? PLEASE HELP!

Math - ASAP Please

(Slope-Intercept Form) Which of the following lines has a slope of -1/2? A) x + 2y = 0 B) x - 2y = 0 C) -x + 2y = 0

Math

How many yards do you need to make 15 t shirts with only 3/4 yards please explain

math test help

help me n the exploring probability unit test all answers please!!!!

math

Dennis says that (2x-7)^2=(7-2x)^2.Do you agree with Dennis?Explain Answer please steve

Math

I need help, please find the exact value of 2log3 27+log3 (1/3)-log3 3^1/2 many thanks

math

If 1/3 is equivalent to 33 and 1/3%, what percent is equivalent to 2/3? A. 33 and 2/3% B. 150% C. 66 and 2/3% D. 65% PLEASE HELP I NEED THE ANSWER ASAP!!!

Math

Find the ratio of the complementary angles having the ratio of 3:16. With solution please, thank you!

Math

-q/7 (greater than or equal to sign) -1 How do I do this step by step I am very confused. Please help.

Math

Please help me to understand what it is that I need to do. A rectangle whose length is 5.3 cm and whose width is 2.5 cm

Math please help!!

In most geometry courses, we learn that there's no such thing as "SSA Congruence". That is, if we have triangles ABC and DEF such that AB=DE, BC=EF, and ∠A=∠D, then we cannot deduce that ABC and DEF are congruent. However, there are a few special cases in which SSA...

Math

These problems I really don't understand and really need serious help :) 1.What the product of (5.1 x 10^3)x (3.2 x 10^3)?(Please express your answer in scientific notation) 16.32 x 10^6 1.632 x 10^7 16.32 x 10^9 1.632 x 10^10 2.What is the product of (7.28 x 10^-2)x(9.1 x 10...

math

These problems I really don't understand and really need serious help :) 1.What the product of (5.1 x 10^3)x (3.2 x 10^3)?(Please express your answer in scientific notation) 16.32 x 10^6 1.632 x 10^7 16.32 x 10^9 1.632 x 10^10 2.What is the product of (7.28 x 10^-2)x(9.1 x 10...

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