c= 1/2 f(s+k) solve for S S= 2C/f k is this correct?
51,581 results
Math
Solve the equation. 1. 999 + k = 1,721 (1 point) k = 2,720 k= 822 k = 722 k = 732 Solve the equation. 2. f + 523.89 = 812.57 (1 point) f =1,336.36 f =1,336.46 f =299.68 f =288.68 Write and solve an equation for the situation. 3. Jamal and Keisha went

Calc
Consider the following. cos(x) + sqrt(y)= 1 (a) Find y' by implicit differentiation. y' = 2y^(1/2) sin(x) Correct: Your answer is correct. (b) Solve the equation explicitly for y and differentiate to get y' in terms of x. y' = ? (c) Check that your

Algebra
Solve. Show your work. A high school athletic department bought 40 soccer uniforms at a cost of $3,000. After soccer season, they returned some of the uniforms but only received $40 per uniform. What was the difference between what they paid for each

Calculus
Consider the following. cos(x) + sqrt(y)= 1 (a) Find y' by implicit differentiation. y' = Correct: Your answer is correct. (b) Solve the equation explicitly for y and differentiate to get y' in terms of x. y' = ? (c) Check that your solutions to parts (a)

Math
Solve the equation 2cos2x = √3 for 0°≤x≤360° I did this: cos2x = √3 /2 2x=30 x=15 x=15, 165, 195, 345 Is this correct? Solve the equation √3 sin2x + cos2x = 0 for π≤x≤π No idea how to approach this one Thanks a bunch for the help!

math
1. Solve for the indicated letter D=4e, for e The solution is e= 2. G(x) = 6/(65x) Choose the correct domain below {xx is a real number and x ≠0} {xx is a real number and x≠6/5} {xx is a real number and x≥6/5} {xx is a real number and x ≠6} 3.

Differential Equations
solve the following differential equations dx/dt  7x + y = 0 >(1) dy/dt  2x  5y = 0 >(2) (2)/(1) dy/dx = (2x+5y)/(7xy) y=vx Etc. Is this a correct way to solve this one?

Math
Mia took a test with 60 multiplechoice questions. Her teacher told her she got 88% correct. A.Write and solve a proportion to figure out how many questions she got correct.

Calculus
Evaluate the definite integral from [0,4] 4x^2 dx, by using its definition as a limit of approximating sums. First, I solve analytically so I know the answer I am trying to reach: 4/3 * x^3 over [0,4] = 4/3 * 4^3 = 256/3 Now, by approximating sums, I can

Math
Solve the system by addition or substitution. 3x – 4y = 8 6x – 2y = 10 Please get me on the correct track for 3x 4y =8 x=4, y=1 for 6x  2y =10 x= 2, y= 1 Solve one equation for x. 3x = 4y + 8 x = (4y + 8)/3 Insert that value for x in the other

Algebra
Can someone verify if my answers are correct? Solve. 1/x+61/x6 My answer is: 12/x^236 Solve. 1/x+5+2=5/x+5 My answer is: 3 Subtract. Express your answer in simplest form. 13x/304x/15 My answer is: x/6 Can someone verify if my answers are correct?

Ms.Sue?Sorry To Bother You,I Got SOme New Answers!
120 g = 0.12 kg [DONE] 0.44 kg = 440 g [ is it correct? ] 1.00600 kg = 1,006,000 mg [ correct?] 0.009 kg = 9000 mg [DONE] 0.2 mg = 0.002 g [correct?] 8.6 kg = 0.0086 [correct?] 800 g = 0.8 [correct?] 1.7 kg = 0.0017 [correct?] 6 200 000 mg = 6.2 kg

Algebra
1.Solve (x)/(x+10)+(x3)/(x+2)=7/5..I got that there is no solution, is that correct? 2. Solve (x)/(x5)+1=(5)/(x5)..I got that there is no solution for this one too, is that correct? 3. Express your result in simplest form, (4)/(xy)+(6)/(xy)..I got

Math #2
If I had a math problem 2x^4 x y^4 x z^3 / 3x^2 x y^3 x z^4. In simpler terms it would look like this: 2x^4 X y^4 X z^3  3x^2 X y^3 X z^4 When I tried to solve this I got 6x^2 X y^1 X 2^7. Am I correct? If not could you please

math,correction,plz
can someone correct this forme solve 7/5 = 35/x My answer: x = 25 solve x/2 minus x/3 = 3 My answer: x = 18 Both are correct

business math
Of the 4800 students at Medium Suburban College (MSC), 50 play collegiate soccer, 60 play collegiate lacrosse, and 96 play collegiate football. Only 6 students play both collegiate soccer and lacrosse, 6 play collegiate soccer and football, and 16 play

Differential Calculus
you have the expression for dp. q=3, dq=.007*3 Now solve for dp and solve for P at q=3 percentage change in p then is dp/p divided by 100. alright... dp(2q^25)^2, dp/dq = 2(2q^25) dp = 0.007x3 = 0.021 dp = (2(2(2)^25)^2 = (6)^2 = 36 36x0.021 = 0.756

Math
Solve 9(w2)=18 9w18=18 9w=0 w=0 Is this correct?

Calculus  Seperable Equations
Solve the separable differential equation (dy/dx)=y(1+x) for y and find the exact value for y(.3). dy/dx = y(1+x) dy/y = (1+x)dx Integral (dy/y) = Integral (1+x)dx ln (y) = x + (1/2)x^2 + C y = e^(x + (1/2)x^2 + C) y(0.3) = e^(0.345 + C) I am stuck here.

math,help
is this correct solve and graph the solution set: 3x+10>25 3x> 2510 (3x)/(3) > (15)/(3) x < 5 correct.

math
is these answers correct? solve the equation: 2x^2 +8x  17=(x +2)^2= x=7,3 solve (v5)^263=0, where v is a real number, simplify answer as much as possible. v=3 square root 7+5,3 square root7+5 v``12.93725, 2.937254 use the quadratic formula to solve

math
could someone please help. given each set of data for ∆ABC: a) solve for b given ∠B=88 degrees,a=31.5m,c=25.6cm b) solve for a given ∠B=66 degrees,∠C=28 degrees,c=11.6cm i) state whether the sine law or cosine law is required to solve the unknown

physics
1.In one dimensional motion, instantaneous speed v satisfies 0 ≤ v < v0. (a) The displacement in time T must always take nonnegative values. (b) The displacement x in time T satisfies – vo T < x < vo T. (c) The acceleration is always a nonnegative

Math
Solve the following equations for the variable indicated. Please correct me if I'm wrong! 1. I=Prt for P Answer: I/P=rt 2. Solve C= 2ðr for r. Answer: C/r=2ð

Algebra
Solve the equation using the Quadratic Formula 5xsquared+13x6=0 i think it is 2/5,3 5x^2 + 13x 6 (5x 2)(x +3)=0 You are correct. From Bob Pursley's work you can see that his solution gives +2/5 and not 2/5. The +2/5 is correct. drbob is right on that.

English
I have two dice. I will roll the dice and according to the numbers on the faces of the dice, you should solve each problem in the space. (After rolling the dice). I got 1 and 7. Who is # 17? Stand up and solve the first problem in the first space on the

Algebra 2
Can someone see if I got these correct? 1. Solve log5 x = 3. x = 125 2. log3 (x  4) > 2. x > 13 3. Evaluate log7 49. log7 49 = 2 4. Solve log3 x = 4. x = 81 5. The graph of a logarithmic function y = 3^x is a reflection of x = 3^y over the line y = 0.

math, correction plz
Can someone correct these for me.PLZ Problem#1 Directions solve equation ãx+4 = 3 My answer: x = 5 Probelm #2 Directions solve equation ã(4x+1) + 3 = 0 My answer x = 2 Problem #3 Directions solve equation ã(2y+7)+4=y My answer y= 1 and y = 9 the

math
actually, in a addition to the question i posted a few minutes ago, can someone please help me with a few actual specific questions? thanks so much i'm very confused and i've been working on these all day. *Literal Equations* ~solve for x ax + bx = 8ab

math(am i right)
determine whether (5,1) is a solution of 9x9y= 3 I said no am i correct? solve by elimination mehtod. 2x+3y=4, 4x+6y=8 type as ordered pair, type N for no solution, I for many. I chose I am I correct?

MathematicalModels
Consider the BlackScholesMerton model for two stocks: dS1(t)=0.1S1(t)dt+0.2S1(t)dW1(t) dS2(t)=0.05S2(t)dt+0.1S2(t)dW2(t) Suppose the correlation between W1 and W2 is 0.4. Consider the dynamics of the ratio S1/S2, where A,B,C,D,F,G,I,J,K,L are constants

Geometry
I need help solving for the height of a trapezoid and finding the correct final answer for a semi circle (a half circle).In area form Here's what I have so far: Trapezoid Formula: 1/2(b1+b2)h My Answer:1/2(5+15)=10 (My bases are 5 and 15) I need help

Solving Formulas
Solve the formula for the specified variable. I don't understand the following: s=2*pi*r*h + 2*pi*r^2 for h the options for this one are: a. h=(s)/(2*pi*r)1 b. h=2*pi(sr) c. h=(s2*pi*r^2)/2*pi*r d.h=sr A=P(1+nr) for r the options for this one are: a.

MATH/CHEM PLEASE HELP!
Give the answer to the following calculation with the correct number of significant digits. Report your answer in scientific notation. (6.17 x 101 + 4.9 x 102) x (3.95 x 102 + 6.454 x 103) i know how to solve for the answer, i just don't know the

math?
Give the answer to the following calculation with the correct number of significant digits. Report your answer in scientific notation. (6.17 x 101 + 4.9 x 102) x (3.95 x 102 + 6.454 x 103) i know how to solve for the answer, i just don't know the

Math
T=10d+20 Solve for d. I got T/102=d Is this correct? and.... L=9.2+0.17m Solve for m round to nearest hundreth or tenth. I got L/0.1754.1=m Is this correct? thanks for replying.

Algebra 2
1. Solve the following for x. 3(x+(4))= 2x6+5x I figured that the answer is no solution. Is this correct? I have been working with my friend on this next problem and neither of us know which is correct. 2. Solve for r. I=P(1+rt) The first answer is

Algebra
I'm not sure if I have this correct I have to solve each literal equation for the indicated variable. A=1/2h(B+b)variable is (b). I have the answer as: 2A=h(B1+b2) 2A/h=B1+b2 (2A/h)b2=B1 Is this correct? weren't you supposed to solve for "b"? that would

math 115
1. Nina's car payment is $362.57 per month for 4 years. how much will she pay altogether? $17,401.92 is this correct? 2. solve the unknown. 4/X= 3/15= 60/X is this correct? 3.write 2/5 as a percent. = 40% is this correct? 4. write 78% as a decimal. 0.78 is

compound inequality
olve. State the solution set using interval notation and graph it 1/3x > 2 and 1/4x > 2 First should I solve for x. How would you handle this problem? yes, solve for x in each.. x>6; x>8 so if the second condition is met, that is x is g reater than eight,

PreCal
1)find f(g(x)) f(x) = x^2 + 2x g(x) = 1/x x^3 + 2x Is this correct? 2) solve: 3^x1 = 10 ln 3/ ln 10 = .264 Is this correct? I am not sure how to do these. 3) Solve: 3^x+2  4 = 12

Math!
I need help figuring out equations for a math problem. This is the question: For a chemistry experiment Marie needs 300 ml of a 15% acid solution. The Science Department has quantities of 5% acid solution and 20% acid solution. What volume of each solution

algebra
I just need a quick check before I hand in my work if you would...Thanks. 1. I am to use the intercepts to graph the equation x+3y=6 I used the formula y=mx+b using 3 and 6 for x I got these as my ordered pairs to graph (3, 1), (6, 4)…Is this correct?

Math
Factor the polynomial P(x)=x^32x^213x10. Then solve the equation P(x)=0. This is what I got: P(x)=(x+1)(x^23x10) P(x)=(x+1)(x5)(x+2) When it says solve the equation P(x)=0 does it means solve for x? If so then x=1 or 5 or 2 Correct??? please and

math
I need to solve a literal equation  Solve for h: A = 1/2bh If I divide both sides by 2b, then my answer would be h = A/2b Is this correct?

Algebra
i forgot how to solve these types of problems.. 2x^218x=0, x^2=6x+7, 6y^2+5y6=0 Also SOLVE FOR X CORRECT TO 4 DECIMAL PLACES: x^2+6x+2=0 2x+4=3x^2

Math
108 is 46% of what number? Write and solve a proportion to solve the problem. I think it's 38 correct me if I'm wrong

Math
I missed these problems on my test and I want to see how you would do them the correct way! 1. Solve the equation: 12r8=3(6r7)+4(r1) 2. Solve the inequality: 55>4(1+4x)3

Math
i forgot how to solve problems like this... 2x^218x=0, x^2=6x+7, 6y^2+5y6=0 also I need help on this one SOLVE FOR X CORRECT TO 4 DECIMAL PLACES x^2+6x+2=0 2x+4=3x^2

Algebra
Solve by using your knowledge of the Distributive Property and combining like terms. 1. 5x(9x10)=34 4x10=34 4x=44 X=11 Did I solve this correctly? If not can someone please show me how to get the correct answer?

math,correction
can someone correct this for me please. Directions: Solve the following system by substitution. 5x2y=5 y5x3 what i received as the solution are : x =  (1)/(5) and y = 2 which it would look like: ((1)/(5) , 2) correct.

Algebra
Hi this question was already asked but there is still no correct answer. I can't seem to solve this for x correctly...I got 128 over 55 as an answer which can't be correct. Please help me find the correct answer! Thanks The equation is: .05x.6(x+2)=.08

Math assistance needed
Solve: (t+24)/(t^2t56)+7/(t8)=3/(t+7) I do know that (t^2t56) can be factored out to (t8)(t+7) so I have the equation as (t+24/(t8)(t+7) +7(t+7)/(t8)(t+7)3(x8)/(t8)(t+7) is this correct ot what am I doing wrong? I don't understand the rest so

math,correction & help
is problem number 1 correct Problem #1 factor completely. x^4 + x^3 12 MY answer: (x^23)(x^2+4) or is this still factorable. Problem #2 i need someone to help me set it up for me to solve. If the sides of a square are decreased by 3cm, the area is

math,correction
Is this correct: Solve: (x+5)^2 = 3 I get: x = 5 (+/) sqrt (3) Problem #2 Solve: 5(x2)^2 = 3 I get: x = 3 (+/) ((sqrt(3))/(5) No on the second. YOu have take the sqrt5 slso, so x= 2+ sqrt(3/5) correct on the first.

Mathematics
Solve the following differential equation, i.e. solve for y: dy/dx  y/x = 1/x + y + 1 I have this so far, 1. dy/dx= (y + 1 + xy + x)/x 2. x dy = (y + 1 + xy + x)dx 3. Integrate both sides... xy + c = xy + x + .5x^2y + .5x^2 + k where c and k are constants

Math check 2
Solve: (t+24)/(t^2t56)+7/(t8)=3/(t+7) I do know that (t^2t56) can be factored out to (t8)(t+7) so I have the equation as (t+24/(t8)(t+7) +7(t+7)/(t8)(t+7)3(x8)/(t8)(t+7) (t24) + 7(t+7)=3(t8) solve for t. The choices are: a.)97/5 b.)122/5

Math Inequalities
9/8x greater than or equal to 1/16 can someone please check my answer? my answer is x greather than or equal to 1/18 is this correct? if not what is the correct answer and what is the correct way to solve this problem..maybe I missed a step or did not do

Calculus  Second Order Differential Equations
Solve the boundaryvalue problem. y''+5y'6y=0, y(0)=0, y(2)=1 r^2+5r6=0, r1=1, r2=6 y=c1*e^x + c2*e^6x y(x)=c1*e^x+c2*e^6x y'(x)=c1*e^x6*c2*e^6x y(0)=c1+c2=0, c1=c2 y(2)=c1*e^2+c2*e^(12)=1 c2*e^26c2*e^(12)=1 c2(e^26*e^12)=1

Math/Calculus
Solve the differential equation y'=3t^2+4. Solve the initial value problem y(0)=3. Separation of variables! My work: dy/dt= 3t^2+4 dy= 3t^2+4 dt Then you integrate both sides. ∫ dy= ∫ 3t^2+4dt Question: is there a 1 in dy? ( ∫ 1dy)? If so:

Math
y^2=8(x3) how would you get the coordinates. vertex = 3,0 then what? let x=1, or 1, and solve for y. This is a parabola, if you are graphing, you will need several points to plot. vertex = (3,0) using x = 2 (2,4) (2,4) > +3 translation = (5,4) (5,4) Is

Algebra/math
I have a few problems I need you to take a look at and tell me if I arrived at the right answer. 1. I am to use the intercepts to graph the equation x+3y=6 I used the formula y=mx+b using 3 and 6 for x I got these as my ordered pairs to graph (3, 1), (6,

Algebra/no response yesterday
I have a few problems I need you to take a look at and tell me if I arrived at the right answer. 1. I am to use the intercepts to graph the equation x+3y=6 I used the formula y=mx+b using 3 and 6 for x I got these as my ordered pairs to graph (3, 1), (6,

Math/Check
I have a few problems I need you to take a look at and tell me if I arrived at the right answer. 1. I am to use the intercepts to graph the equation x+3y=6 I used the formula y=mx+b using 3 and 6 for x I got these as my ordered pairs to graph (3, 1), (6,

algebra
I have a few problems I need you to take a look at and tell me if I arrived at the right answer. 1. I am to use the intercepts to graph the equation x+3y=6 I used the formula y=mx+b using 3 and 6 for x I got these as my ordered pairs to graph (3, 1), (6,

Algebra
I have a few problems I need you to take a look at and tell me if I arrived at the right answer. 1. I am to use the intercepts to graph the equation x+3y=6 I used the formula y=mx+b using 3 and 6 for x I got these as my ordered pairs to graph (3, 1), (6,

math,correction
okay for the first one i/ve done it twice and both times i got 10, not 10. check your work to make sure you did it correctly. for the second one i got 24 so you are correct Directions solve for x. (x)/(x2)(x+1)/(x)=(8)/(x^22x) The answer i get is :

mat/116
Will someone please help me slove this problem? Use the elimination method to solve the system of equations. 5u+2v=18 3u+v=5 I have tried to solve this problem several times and have not gotten the correct answer please help. Thank you.

physics
how do I solve for angular momentum if the weight its 700 g and the angular v is (1m=r, 120rmp). I get 12.56 for the v. But i don't know how to solve for the monentum. Also is my v correct?

PreCal
1) Solve the equation exactly for x: log3 x  log3(x3) = 2 I got 1 as an answer. Is this correct? 2) Find the cotangent of the base angle of an isosceles right triangle. sqrt3 / 2. Is this correct?

Math
We have an important chemsitry test due and I want to make sure that I do not mess up on my algebra. I am dealing with the integrated rate law, but my question is purely algebraically in nature. I hope, somebody can help me. 1) ln(A) = kt+ln(B) solve for

math
I am alittle confused but I did attempt the question. How did I do? Solve 1/3y+5/12=2/y first I brought the y over to the other side.Mult both sides by 3/1 getting 5/12=6y/y 5/12=5y now divide each side by 1/5 1/12=y I this correct? If not can you lead me

Kim what about this one?Can you please help me wit
Thanks,what abou this one? Use the Substitution method to solve the system of equations. x + y = 10 y = x + 8 follow the same principle for the first one and u'll get it u already have y = x + 8 Subst. that in the first eqn and just follow up from there

math,help
is this correct solve and graph the solution set 3(x4) > 7x9 my steps 3x12 > 7x9 3x7x > 9+12 4x > 3 (4x)/(4) > (3)/(4) x< (3)/(4) how do i graph it also well, everything to the left of .75 is x. so then am i correct or completely wrong...

math,correction
is this correct: solve by using the quadratic formula 5x^2+x=3 what i keep getting is this: (1 +/ sqrt 61)/(10) or should i reduce the denominator to 5 or is my whole answer incorrect? (1 +/ sqrt 61)/(10) looks correct. You do not need to reduce it

maths
(a) Solve the following equations for x where possible, giving your solutions correct to three decimal places. (i) 3^x+1 1=5 (ii) 3×4^x =4×4^12x (b) Confirm that any solutions you found in part (a) are (approximately) correct by subsituiting into the

Math3 Questions
Hi. Check my answers? Thanks? Also, if I got any wrong, explain to me why because inequalities confuse me sometimes 1. Julia is allowed to watch no more then 5 hours of tv a week. She has already watched 1.5 hours. Write and solve an inequality to show how

math,correction
can someone correct these for me i'll appreciate it thank. dirctions: solve 3x7=2x+8 my answer: x = 15 directions: solve 2/5x=10 my answer: x = 25 Directions: solve 3(x+1)=2(x8)+3 my answer: x= 3.2 1 looks ok. Show your work on 2 and 3 and we can

math
Evaluate: 3/4  1 3/8 A:  17/8 B: 1 C: 17/8 D: 5/8 I put C but its was incorrect. I'm to sure what the correct answer would then be. can you show me how to solve it and how to achieve the correct answer?

math
can someone correct this for me please... Solve for x: 6x minus 1 divided by 5 minus 2x divided by 3 equals 3 my answer: x = 6 Solve for x: 3/7x = 15 My answer: x = 35 correct, as best I can tell from the description. Thank you.

algebra
5x2y=5 y5x=3 substitution Substitute 5x +3 for y in the first equation, then solve it for x. Substitute 5x +3 for y in the first equation, then solve it for x. When I subsitute 5x+3 into the equation I get x=1/5 and y=2 is this correct? You are close!

math/algebra
solve each of the following systems by substitution. 16) 5x 2y = 5 y  5x = 3 20) 8x 4y = 16 y = 2x  4 28) 4x 12y = 5 x + 3y = 1 Step one: Solve on of the equations for one of the variables. y=2x4 Step two:Substitute the expression for the variable

math
I'm trying to solve these equations but it seems I didn't get the correct one. please help if you still can. to solve the equations: 1. 0.4 =32z 2. 8n  2 = 14 3. 2 (x + 3) = 4 Thanks a lot.

Algebra
Solve. x3/15=1/3 I get 8 as an answer. Is this correct? If you substitute 8 for x, you'll find that 8 is not the correct answer. x  3/15 = 1/3 x = 3/15 + 1/3 x = 3/15 + 5/15 x = ______ Please post your answer and a teacher will be glad to check it. Does

Algebra
I can't seem to solve this for x correctly...I got 128 over 55 as an answer which can't be correct. Please help me find the correct answer! Thanks! The equation is: .05x.6(x+2)=.08 Please show the work as well as the answer. Thanks again.

maths
use the substitution method to solve the linear system. 1. 3x=9 x+2y=9 3x/3 = 9/3 x = 3 x(3)+2y = 9 3+2y = 9 2y = 12 y = 6 is (3,6) correct? =========== also, can you please tell me how to solve these? use the linear combinations to solve the linear

drbob222 math,correction
i made some corrections for the previous postage can you check those when you get a chance please. Also for this one: my options of answers are: A)2y + 6/3 B)3x 6 /2 C)2 + 2y D)2/3y + 6 Directions: Solve for x: 3x  2y =6 3x  2y = 6 +2y +2y 3x = 6 +2y 

Geometry
How would one solve similar right triangles if the first triangle has y and x as legs and a (altitude) as hypotenuse, and the second triangle has one leg of 50, the other is a, and the hypotenuse is 100. I solved for a, and it came out to be 86.6? Is this

physics
When 1.60 multiplied by 105 J of heat enters a cherry pie initially at 20.0°C, its entropy increases by 470 J/K. What is its final temperature (C)? I use delta S = entropy change = 1.6*10^5*[1/293  1/T2] = 470 Solve for T2, but it's not correct. Please

Algebra
Hello, can someone tell me if I got the following solve and check work correct? 1. solve and check 1/2x = 3 5/6 1/2x = 3 5/6 1/2x = 23/6 3x = 23/3 x = 23/3 And to check for it 1/2x = 3 5/6 1/2x = 23/6 46x = 6 x = 6/46 x = 3/23 2. Solve and check 3x + 2 / 2

Algebra
It does, thanks. I'm currently working on solving algebraic equations with two variables (Example: 3x+4y=9). The computer lesson has taught me nothing but to solve the equation by trial and error  selecting the proper ordered pair from a multiple choice

math
Two friends are playing a variation of MasterMind where one friend tries to guess the three digit number that the other friend is thinking of. The rules of the game are as follows: Digits can be repeated Zero cannot be the first number, but zero can be

math
how would you solve for y in this problem: x=(y^2+3y)^(1/3) would it equal: y= x^3/y  3 ? and what about this problem: x= 1/[(y^2+3y5)^3] would it equal: y = y/x + 5/y  3? I would appreciate your help very much! Your equation is correct but it does not

math olympiad
how to i solve this problem asked previously unsatisfied with ans. Jack and Jill copared results on math test. Jack had 40 correct ans & Jill had 50 correct ans. There were 32 questions they both had correct and 6 they both had wrong. How do I determine

Physics(please check)
Solve for Q Q= sin^1 1.5/9.8 I got 8.80 Is this correct? I have a TI30 calculator and to do the sin^1 I pushed the 2nd button and then sin. I am not sure if this is correct.

math
To solve 3/4 divided by 2/5, Elisha writes, 3/4 divided by 2/5 is the same as 15/20 divided by 8/20. So the answer to 3/4 divided by 2/5 is the same as 15 divided by 8. 1. Is Elisha's first claim, that 3/4 divided by 2/5 is the same as 15/20 divided by

math ,correction
Is this correct..... Solve the problem. Round to the nearest hundredth, if necessary the following data gives the number of appliaces that applied for a job at a given company each month of 1999: 64,67,94,76,78,82,87,88,90,73,64. What is the mean of the

drwls, is this correct,math
drawls this is from the previous post is this correct. solve the system by subtraction. 5x3y=13 4x3y=11 equation#2 woudl be 4x3y=11 3y = 4x+11 y = (4)/(3) x  (11)/(3) so now i substitute it to equation #1 5x  3((4)/(3)x  (11)/(3)= 13 5x  4 x +11 =

Algebra
Solve : 5(x + 8) 6> 4(x + 6); I got 5x + 40  6> 4x + 24 5x4x + 34> 4x  4x +24 x + 34 34 > 24  34 x > 10; is this correct?

Math Help!!!!
how would I solve this 5(73/2) x 6 2*5=10*6=60 is this correct????