# Math(Please help)

183,433 results, page 16

### math

please help me with this proving question prove that 4cos(theta) * cos(theta + 120) * cos(theta - 120) = cos(3theta) PLEASE HELP THANKS

### mssue can you please view

can you please view my last postage. i hope you can understand me. If you think i don't appreciate your help well let me tell you how greatful i am of having each and one of you tutors all i want is to feel clear about a topic that i'm in question that's all.please view my ...

### math

Can some one please help me I had developed jello brain today. Can some one explain to me why the line x = - 2 is avertical line. and what the slope would be for the line. and why its diffenrence for y = -2 . what would the slope be for y = -2. Please I am sinking here.

### math double check please

GCF and LCM of 252, 420, and 180 252: 2,2,3,3,7 420: 2,2,3,5,7 180: 2,2,3,3,5 GCF is 12 and I think LCM is 1260? Can you please tell me if I'm right?

### math

PLEASE HELP ME WITH THIS TRIGONOMETRY QUESTION!!? Edit Express each of the following in terms of another angle between 0 degrees and 180 degrees a. sin 50 degrees b. sin 150 degrees c. cos 45 degrees d. cos 120 degrees Update: we have not yet learnt it in class i'm trying to ...

### Math Please Help!!!

John is at a car show. Beginning 2.5 miles away, a car travelling at a constant 45 miles per hour approaches and then passes John. The distance between John and the car can be represented by the equation d = |2.5 – 45t|. At what times is the car 0.5 miles from John? Can ...

### math

simplify -cd^-4e^-1 okay rob or jim. read my math tip notes, okay? otherwise you'll do poorly on your quizzes. :) if you meant (-(cd)^-4) * (e^-1) -e/((c^4)*(d^4) or if you meant ((-cd)^-4) * (e^-1) e/((c^4)*(d^4) or if you meant (-c(d^-4)) * (e^-1) -ce/(d^4) Please specify ...

### Math

Graph the function Identify the vertex and axis of symmetry f(x)=2x^2 + 4x +1 please explain steps I need to do. I keep looking at notes and just can't grasp any of it. Failing math not sure how to start again. I think I missed something major.

### Math

Find the five-number summary of the following set of numbers. 337, 248, 157, 388, 248, 451, 271, 225, 310 First sort... 157,225,248,271,310,337,388,451. the minimum = 157 the minimum = =271 the median = (271+310)/2= 290.5 the upper quartile= can you please tell me if this ...

### Math

In math we're doing a review sheet and i don't get any of it so can someone please help!! What is the simplest form of the expression Radical 28 + radical 175 - radical 7

### Math

My math assignment is conversion with weight. 1. 6 T= lb 2. 18lbs= oz 3. 3,200 oz= lb 4. 12T= lb 5. 9lb= oz 6. 7lb= oz 7. 100lb= oz 8. 60,000= T I need major help on the above. I do not know where to begin and need to know if there is some sort of chart I can use as well ...

### Math

Could you please help me unscramble this word It is supposed to be a math word natoopseia

### math

please help me with this question What is your fear of math or if no fear, what do you like about it?

### Science (Please Respond SOON!)

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 ...

### college

Select the properly punctuated sentence. a. Please let me know; when I may contact you. b. Please let me know, when I may contact you. c. Please let me know when I may contact you.

### math

ok i need help with these questions i have been trying to figure them out and my brain isnt working. please help and thank you ahead of time. if you can help. 4. Q.write and algebraic expression for the product of 15 and c A. IS IS C-15 16. Q. define the variable and write an ...

### To Gunjan

Your posts have been removed. In the future, please remember these things: 1. This is a homework help website; please put your subject (math, science, English, or ??) in the subject line to make it faster for each teacher to find those questions in his/her areas. An even ...

### calc (please help)

A wedge is cut from a right circular cylinder of radius r by two planes, one perpendicular to the axis of the cylinder and the other making an angle (beta) with the first. Find the volume of the wedge by slicing perpendicular to the y-axis. Please show all steps Note: this is ...

### Finite Math- Please help!

Hi, I'm having trouble finding the overall output. output at A is pq output at B is ~q+r output at C is ~p(~q+r) What is is the overall output? I'm having trouble getting the EXACT answer with parethesis. Please help!! Thanks and God Bless!!

### Math Help Please

What are the ratios for sin A and cos A? The diagram is not drawn to scale. Triangle Description- AB = 29 AC = 20 BC - 21 A. sin A = 20/29, cos A = 21/29 B. sin A = 21/29, cos A = 20/21 C. sin A = 21/29, cos A = 20/29****? D. sin A = 21/20, cos A = 20/21 Please help and explain!

### Algebra II- please help!

I just cannot seem to be able to grasp the concept of solving polynomial inequalities. Can someone please explain, step by step, how to solve them? Here's a problem I can't solve. Please use this as an example: (x-2)(x-5)<0 I cannot thank you enough for helping me with this...

### Physics

Car A is moving at a constant speed of 10.0 m/s and passes Car B which is at rest. 10 seconds after, the latter follows with an acceleration of 0.5 m/s2. Determine the distance that the latter has to travel before it overtakes the former. does it require quadratic formula? Oh ...

### Geometric Constructions HELP!

Congruency means that two figures or items are exactly the same size and shape. Where in life would it be vitally important for two or more items to be congruent? Can you give me ideas or examples about: the with wings of an airplane and tires of a car. Please! Please! Please!

### math

need to make a venn diagram using 3 circles. A survey on subject being taken by 250 students at a certain college revealed the following info: 1. 90 were taking math 2. 145 were taking history 3. 88 were taking english 4. 25 were taking math and history 5. 38 were taking ...

### Math HELP!!!

x2 + x + -3.75 = 0 Please... I'm horrible at algebra. x=7.5 and x=-8.5 THANK YOU SO MUCH

### Math(Please Help!)

6-y/y^2-2y-24=? *I don't get it at all!!! Answered in another post.

### math...help please!

so if 0.98 = 98% then what % would 9.8 be? 980 percent

### math

how do you find the vaule of x please help thanks :) example 9(2x-)18=36

### Math

I do not understand how to solve this...please help me. 3-4x=10x+10

### math

Please explain how to do this problem: 5(9-3)+5x4-6=

### math please

what is the least number that is divisible by 2,3,4,5,,6,9 and 10?

### math please help

Solve the system by addition. 2x-4y=7 4x+2y-1

### math please help

Solve the system by substitution. x – 5y = 2 2x + 3y = 17

### math!

WHAT IS THE ANSWER TO A LINE THROUGH (-1,1) AND (2,3) please help! C:

### Math

3,17392% of 3,123. Please help me on this problem.

### math

49 divided by n = 7 ( please show work thank you)

### Math

how do you find the radius of a circle? Please help

### math

can somebody please solve these inequalitys 3w>30 4n+8<24 6y+1<19 2r-8>6 b-5>-2 2y+1<-5 4x-6>-10 Thanks

### Math

150 is 75% what of number? I'm not understanding this please help.

### math

3/x + 5x/12 = 9/4.... i need to solve for x but i don't know what im doing.. can someone help me please

### Math

I need help changing 67.4 dm _________mm. Please and thanks!

### math

please check. thanks. (8.3 x 10^-15) (7.7 x 10^4) = 6.391 x 10^-10 Is that right?

### math

Please check problem 3y - 2 > 12 - 5 y answer y > 7/4

### Math

Please check this problem -5x > 30 answer x < -6

### math

Please check problem 4 x + 7 < 8y - 1 answer x > 2

### math

please check this problem 2x + 5 < 7 answer x < 1

### math

54-6 celcius 2+6=? please explain if possible

### math

two questions that i cannnnnnot get!: 2/3(t)-(2-3t)<5t+2(1-t) and; 4[5x-(3x-7)]<2(4x-5) please help!

### math

5+2x=13 i don't really understand how to get the answer. could u please help?

### math

answer this simultaneous equation please. 3a-b=9 2a+2b=14

### Math

please answer this simultaneous equation. 3a-b=9 2a+2b=14

### math

can someone please help me with my question below

### math

Help subtract 7 4/5 from 18 6/15 Can someone show me how to do this please

### Math Help please

Solve w= (va)/(r^2+a^2) for a. is the answer a= sqrt[w(r^2+v^2)/v]?

### math need help please

What percent of 140 is 21

### Math

5 5^5=25 25-1=24 24/4=6 6-5=1 =1 Did I solve this right,Please help I just don't get it

### math

please explain to me how to dived this 57/550

### Math

Please help me with this question: What is the supplement of 125degrees?

### math

How do you change fractions to percents HELP PLEASE...

### Math

Hi, Name the property illustrated: 1. If 3p=11, then 11=3p Please Help!! Thank You!!

### math

please!!! i forget!! how do u do rnage? How do u do mode?!?!

### math-algebra

linear equation x+y=-2 please help!!!!

### Math

Please help with the following: Factor completely 3x^2-5x+1

### math

Please help me if I am wrong F(x) = -9x – 10 What is the slope (9) The y intercept is (0, 10)

### Math

What percent of 60 is 54? please explain how to do this, i forgot

### math

9 divided by 6/7 .. i have no idea how you do this so please help!

### Math

-28= - 14n i am really confused on how to do this... Please help!

### math

If r=t/2 and t=w/2, what is (r+w) in terms of t? (A)t (B)t^2 (C)3t/2 (D)5t/2 (e)5t/4 Please show work. Thanks.

### math

Find the root of each question 1. 1/3 (2w-6)= -10 2. 3a-7 = 4a + 5 4 3 3. 3k - k+3 = 8 - k+2 2 3 4 PLEASE HELP !!!

### math

90,050mL=____L please help i forgot how to do

### Math

h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 3 1 6 6 6 2 2 you can post your response here please

### 6th Grade Math

2/13 divided by 5/26 = Please HELP me. Thanks

### math

im having trouble with ratios...please help!

### math i need help please

5m2-29if m=2 a)-9 b)+9 c)54 d)-54

### math i need help please

solve the equation x+13=-8 a.21 b.-21 c.5 d.-5

### math i need help please

solve equation w/9=9 A)1 b)-1 c)-81 d)81

### math i need help please

solve the equation b/2-15=16 a.62 b.15 c.1/2 d.2

### math

matrices: A=[-5 4 -6 B=[-2 4 -5 9 -8 7 8 9 3 4 -3 9] 5 -2 2] AB=? please show the work if you can.

### math

matrices: A=[-5 4 -6 9 -8 7 4 -3 9] B=[-2 4 -5 8 9 3 5 -2 2] AB=? please show work if you can.

### math

_ _ _ * _ = 1101 please help it is due tomrrow

### math

factorise 1. 3a^2 - 2a - 8 2. 3x^2 + 31 + 10 3. 64y^2 - 49 please help thankyou

### math, answer please!

I don't understand how you do these 2 problems. (p-7)(p+8) & (-7+p)(8+p)

### math

I'm having trouble with 2 problems. Please help. Thanks.

### Math

Evaluate can you please show me the steps. -3/4-3/16

### math

(-2x^4 ) ^(-3) I cant figure this problem out please help!!!!

### Math

solve by the substitution method 7x+4y=14, x=47-7y please help

### math

square root of x+4-2square x-1=-1 could help me please.

### MATH

HOW TO SOLVE THIS? ã8(ã10-1) PLEASE IT IS URGENT !!!!

### math absolute values

please solve this: {3z} for z=62

### math

I cannot unscramble this word please help. REAOPRDDRIE

### Math

how do you simplify (8-(ã-36)) / 4 and express it in a+bi format? Please help!

### math-please check

is the solution to 2x^2-4x+5... 1(+/-)((sqrt6)/2)i ??

### MATH!

4 SQRT(2x-3) < 12 please show how you find this! thanks!

### Math(Please help)

Simplify the expression: (x^9y^-4)^6 x^54/y^24 Is this correct?

### math

can someone please help me with this.. I do not get how to do it 3 sqrt 729 x^5/y^3

### Math

Please help! What is the solution of 5 - 2x is greater than -3 OR -3x + 9 is less than -6 Thank you

### Math

Please help me, I do not understand how to factor out 2x^2+4x-2x^3.

### Math

Please help me, I do not understand how to factor out 2x^2+4x-2x^3.

### math

what is the largest area for my poach.... please help me