# Math(Please help)

183,433 results, page 39

### math

Find the perimeter of a right triangle with legs of 20 cm, and 21 cm. a.882 b.82 c.70 d.47 I have no clue what to do. Can somebody help me with this please?

### MATH

IM CLUELESS PLEASE EXPLAIN IM GONNA TAKE A TEST THANK YOU 3A2B+2A2B2AND-AB2+A2B2?

### Math

I need some urgent help with two simultaneous equations urgently please...Show working. 3a-b=9 2a+2b=14

### math

y=-7/10x-10/7 find the slope and y-intercept can someone please hlp, and explain how you came up with the answer

### math(Please help!!!)

In acute triangle ABC, segment AD is an altitude, the measure of angle ADB=2x^2+40, BD=9x-3, and DC=6x+15. Find BC.

### math(Please help Urgent!!!)

In triangle ABC, D is the centroid and M is the midpoint of segment AC. If BD=10 and DM=2x+1, find MB. Answer choices: 2 , 9.5, or 15.

### math(Please help Urgent!!)

In triangle ABC, D is the centroid and M is the midpoint of segment AC. If BD=x+9 and DM=6, find MB. Answer choices: 9 , 3, or 18.

### math

keep trying to solve this one but canceling out x. i know x=-2 but i'm not quite sure how to get there in steps? 5^(2+3)-5^(x+2)=4 please help!

### math

Can someone please check my answers? Thank you! 1. is (-8,-9) a solution of 2x+4y=12 No 2. Solve using the multiplication principle. -1/2x=-9/10 answer: 9/5

### math

Please help. the question is: Estimate the quotient. Tell what compatible numbers you used 817 divided by 4

### To Happy --

Please repost your math question -- and remove Ms. Sue's and my screen names from YOUR NAME'S space. Thanks. =)

### math

please answer this question? Round off to the nearest half hour:14 hours and 54 minutes.

### 6th grade math

i need some help with determing surface areas of rectangular solids please. thank-you

### Math

Please help with this problem! What is the positive three-digit integer that is four times the product of its digits?

### math

5 coins are dropped on the floor. find the probability that they will all land heads up. please help me solve!

### Advanced Math

Find the principle root (-64)1/6. Express the result in the form a+bi. (2i)^6= -64 = (-64)1/6= 0+2i I got it wrong, please help.

### Math

Calculate the distance between the points -2/3 and 3/4 on the number line. Please show how you come to the answer.

### math

Find all the zeros of the function. t^3 - 3t^2 - 15t + 125 Please explain. I am very confused on how to do this!!

### Math

use the properties of logarithms to simplify the logarithmic expression. log10 (9/300) Please explain!!

### Math

Can someone please explain this question? What would be a brief scenario of a continuous probability distribution? Thanks for your help.

### math

Find the first and third quartiles, Q1 and Q3, of the following set of numbers. 13, 5, 12, 16, 7, 14, 7, 3, 10, 7 i don't know how to figure it out can you help please. thanks

### math

I am changing measurement to the given unit. I need to change 14m to kilometers what is the answer?help please

### math

Rewrite the equation so that y is a function of x: 1. 1/2(y+5)+4x=3x 2. Use the result in Ex. 1 to find y when x= -1, 0, and 2 __________ Can you please check if this is right? 1. y=-2x+4.5 2. f(-1)=-2(-1)+4.5 =6.5 f(0)=-2(0)+4.5 =4.5 f(2)=-2(2)+4.5 =0.5 Thanks!

### To Mia

Please see the answer to your question below. The math tutor may be able to help you if you respond to his post.

### Math

I have a real big problem. I am not suitable for Algebra! So, could someone please explain how 5x=54+7 equals 4 o.O

### Math, please check answer

Find the midpoint of the line segment having the given endpoints. ( 2, 6) and ( 7, 3) M 9/2,9/2

### Math

I am having trouble finding a pattern or linear equation for this table x y 1 -1 3 3 5 7 10 ? 50 ? 100 ? Could someone help me please?

### math

operations on functions: Given f(x) = 2root x+7 and g(x) = 5x^2 – 9, evaluate (f/g)(2) . I don't understand how to do this, can someone please explain the process??!! thanks!

### math HELP SOON!

Write each ratio as a unit rate. 6 eggs for 4 people. "Please help, it is very confusing to me."

### 7th Grade Math

Find the area of the circle described. Use pi= 22/7. Diameter= 1.4cm Please help!

### math

0.3x-0.2y=4 0.5x+0.3y=-7/17 Can anyone Please help me solve using the elimination system..... Someone tried to explain it but I still do not get it at all

### MATH

can some one please help to solve this problem. Add. reduce to lowest terms, if possible 3/y+3+y+7-y-9+/7/y-3

### math

name the transformation that turns a figure around a point please help asap it is due tomrrow

### math

I've to solve 3x^2 + 6x +3 =0 by factoring. Thus, after solving I got the answer as 3(x + 1)^2. Please correct me if I'm wrong.

### MATH/OPTICS

given di=145, do=38,hi=-97 formula: hi/ho=-di/do how do i rearrange this?? i do not want the answer. need help rearranging equation please help!!

### math-please help!

Use the properties of lines to parallel solve the problem. If p ðF q and mÚ8 = 52‹, what are the measures of the other angles?

### math

How would you simplify this rational expression: Can you please show me the steps on how you get the answer thank you. 2y+1 over y-2 times (4-2y)

### Math

What is the relationship of the two lines with the equations -3y=x-6 and y=3x+1? I am very confused. Please explain how you got your answer!

### Math help please!!!

Factor completely 3p^2q + 9p^2q^2 - 12p^2q^3 I have done the following: 3p^2q(1+3q-4q^) but then i get stuck..not sure if that's the final answer..

### Math please help asap

Solve using elimination.......answers must be in ordered pair form 0.3x-0.2y=4 0.4x+0.5y=-55/17

### Math

Please I need to solve this problem Use the elimination method 0.3x -0.2y=4 0.5x + 0.3y=1 Plesae help I am competely lost!!!

### 6th grade math

Why is the best- the mean or median- to use when planning a trip? Why? HELP PLEASE! I'M STUCK!

### math

can you answer this as soon as possible please just find the lcd of this rational algebraic expression 3x/x-4,2x/x+4

### Math

An experiment has three possible outcomes: A,B, and, C. If P(A)=P(B) and P(C)=2P(A)what is the probability of each event? Hint: We know that in this case, P(A)+ P(B)+P(C)=1; therefore,P(A)+P(A)+2P(A)=1 Please Help :)

### Math

I don't understand how to solve equations with logarithms very well...can you help please? here is one im stuck on: log (3r+5)= 5 2 Thanks!!

### Math

how would you simplify log10^x3 ? i tried the examples from the book, but it just confuses me. someone please help.

### Statistics/Math- Please Help

When comparing two independent population means, how do I find the degree of freedoms?

### math

if an equilateral triangle has a perimeter of 24 inches, what is the length of each side and please explain why because i don't really understand this! help!

### Math

simifly. Use the commutative associative and distributive properties. 1. 175 + 37 + 25 2. 50(11 x 2) 3. 12/(99 can someone explain to me how to do these please?

### Math

Solve by using the multiplication principle -2x> 1 over 9 I have tried this problem and can get no where with it can someone please help me????

### MATH I NEED HELP PLEASE!

DETERMINE THE SUM OF THE FOLLOWING GEOMETRIC SERIES A. -1/32+1/16-...+256 B. 50 over Σ 8(.5)^n-2 where n=1

### math i need help please

determine sums of following geometric sequences... A. -1/32+1/16-...+256 B. 50 over Σ 8(.5)^n-2 where n=1

### math

write the following in a sigma notation 3/32+3/16+3/8+...+12288 so far ive gotten that a=3/32 and r=2/1 can you please help me further

### pre-algebra-math

two fractions equivalent to the given factor 18/21 and the other 3/27:) please helpp

### Math(Please check)

Find the derivative of f(x)=1/3 sqrt x. The 3 is little above the square root. I know that it is -1/3x^-4/3. Can this be written as -1/3x^4/3 ?

### 3rd grade math hw help!

Please help! Name three ways the Roman and American coins are alike? Thanks.

### Math

Principal is $1,800. Rate is 10%. Simple Interest is $360. What's the time? Please show how you go to this answer.

### math

Could someone please describe two main differences between classical and empirical probabilities.

### math

HELP ME PLEASE!!!!! Convert to an improper fraction. Type in your answer with the negative in the numerator. -11 1/3= I have NO clue how to do this!?

### math

I don't understand the rules for adding and subtracting postive and negative ,can you please explain it to me? im having a test

### math

a circular coin has radius of 8.2 what is the circumference rounded to the nearest tenth? please show work

### math algebra..help please urgent! due in 20mins

how to divide and simplify 12x^3-22x^2-44x-16/6x+4

### Math(Please help)

f(x,y)=x^2 e^2x lny (2,1) I need to find the partial derivatives with respect to x and y. I have not idea how to do this especially with the (2,1).

### math

2 questions please 6x<2x+24 also express 792 as a product of prime number in index form

### Math

Find the limit of ( n(n+1)/2 )^2 * 2/n^3 * 2/n as n goes into infinity I keep on getting 1, which is the wrong answer. Please help!

### math

please let me know the probability that in five tossess, a coin shows heads at least 3 times in succession?

### Math

solve for x, where x is a real number. (x^2)+3x-4=14 Please show me the steps im missing one and i cant figure out what

### Math Algebra 2

m1v1 + m2v2=(m1+m2)v3 find m1 If you could please explain it too or show the steps I would appreciate it.

### MATH HELP PLEASE

What is the smallest positive integer by which 180 should be multiplied to obtain a perfect square? Thank you

### Math

Let f(x)=sinh^−1(6x). Then f(x) can be written in the simplified form (Ax+B)/(sqrt(Cx^2+D). What are the values of A,B,C and D? Again, please show me how to do this. Thanks

### MATH

multiply 138* 29/46*7/9 give answer as a whole ormixed number????? this is a foreign language to me please help!!!

### math

e.) 22, 344,579.06 a.) 1, 333.8 c.) 4.44 b) 2.97 d) 2.05 can you please put this in order from least to greatest in decimal form

### Math

e.) 22, 344,579.06 a.) 1, 333.8 c.) 4.44 b) 2.97 d) 2.05 can you please put this in order from least to greatest in decimal form

### math help me please!!!!!!!!!!!!!!!!

luke added 429+699+314 and got 950 is this sum reasonable?

### Math

Calculate the number of grams of dextrose in 250mL of D5W. I know that the answer is 12.5g, but I do not understand the work. Please help.

### Math 7 Help! (last qs.)

Name some situations in everyday life where positive and negative ingeters are usaful ____________________________________________________________________________________________________________________ I DON'T GET THIS!!?!??!?!? Please help me! Thank You! :-)

### MATH

DESCRIBE THE ANGLE SUM THEORY AND HOW THE FORMULA WORKS. HELP ME PLEASE I NEED TO STUDY FOR A TEST

### Math

How do you turn 11/12 ( a fraction) into a percent?? Help please its homework due very soon!!!!!! Thankz.

### math

Solve -3(x-10)>-x+5. Write your solution using set builder notation. please show work

### Math

Find two lines passing through (-1, 1)which are tangent to the ellipse x^2-4x+y^2+3=0. Please write out how to get there. Thank You.

### math

For the function f(x)=-2x^2-6x-7 find: a) an equivalent equation in the form f(x)=a(x-h)^2+k b)the maximum or minimum (also decide which) please help and thank you

### Math

IN a square with each side measuring 6inches what is the ratio of the perimeter to the area? Please show work for this!!

### Math help please

(This homework question was removed due to a copyright claim submitted by k12.com.)

### Math

I've been working on this function for quite awhile and just can't seem to get it. Inputs x 5, 6, 7, ? Outputs y 50, 72, 98, ? Please help!

### math/algebra

Find the quotient and remainder when the dividend is 262 and the divisor is 11. Please show work

### math/algebra

Please show work Find the quotient and remainder when the dividend is 262 and the divisor is 11.

### physic please check answers test tommoro

bobpursley did i do the math problem right if not could u do it for me .thanke

### Math

Simplify x^2 - 9x + 18/ x^2 - 6x + 9 for all values of x for which the expression is defined. A. x-3/x-6 B. x-6/x-3 C. x-1/x+9 D. x+9/x-1 Please explain how you work this problem in detail. Thanks.

### Math

What is the length of a segment whose endpoints are (5, -8) and (9,2). Please explain to me what the formula or rules for working this problem.

### Math

Use the method of substitution to solve the linear equation! 6a=6-b 6a=5-b please help I don't get it it needs to be an ordered pair.

### math

Really need help please!! triangle CDE has vertices C (-2,4) D (6,2) and E (-4,-2) determine the exact location of the centroid

### Math, Pre Calc

Given that (+-2) and i are the roots of a 4th degree polynomical, find the equation. Please help! Thank you:)

### MAth

I keep getting -28/19 for this problem, but it doesn't check with the solution in the back of the book. Help please.. solve the equation 7d-(1/2)(2d-4)=(-5/4)(d+4)

### Math

how would you find the inverse function of a problem when you have a squared number like f(x)=(x^2-4)^2 PLEASE HELP

### Math Help!

What is the scientific notation of 95? Please give a simple explanation! Thanks, sorry i keep posting this question!

### Math

24 (6-)-1 divided by-5. There is a big space between the 24 and the -6. I don't know if I multiply 24x-6 or do I multiplying-6x-1and then times it by 24. Please help

### Math

Find the slope of the tangent line to the curve 0x^2−2xy+2y^3=10 at point (-4,1) Help please? Thanks in advance

### math help please

Solve the following system of equations using substitution. What is the value of y? 2x + 3y = 105 x + 2y = 65 A.15 B.25 C.40 D.65 I think it is B??

### 7 th grade math

Input 1 2 4 5 10 12 Output 3 5 9 11 21 25 What is the rule for this function ? If adding add what tried 2 Need help please