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 Trigonometry-basics/728230: Is sinx(cscx-sinx) just sin^2? (x equals theta.)1 solutions Answer 445348 by Alan3354(30993)   on 2013-03-19 19:36:13 (Show Source): You can put this solution on YOUR website!Is sinx(cscx-sinx) just sin^2? -------------- Might be, might not. Pick an angle for x, see if they're equal. eg, x = 22 degs
 Travel_Word_Problems/728194: Solve the equation by finding the exact solution. ln x − ln 6 = 151 solutions Answer 445336 by Alan3354(30993)   on 2013-03-19 18:31:35 (Show Source): You can put this solution on YOUR website!Solve the equation by finding the exact solution. ln x − ln 6 = 15 ---------------- ln(x) - ln(6) = 15 ln(x/6) = 15
 Trigonometry-basics/728187: Trigonometry help please? show that cos(A-B)-cos(A-B)=2 sinA sin B. Using coumpand angle and indenty for cos. Anybody have an idea how to solve that question? Cheers all...1 solutions Answer 445335 by Alan3354(30993)   on 2013-03-19 18:21:58 (Show Source): You can put this solution on YOUR website!show that cos(A-B)-cos(A-B)=2 sinA sin B. --- "show that..." implies you want to confirm an identity. But, cos(A-B)-cos(A-B) = 0 -------- Using coumpand angle and indenty for cos. ------ Then you say, "solve that question?" Questions are answered. Equations are solved. ------------- Try again. Make it clear what you want to do.
 Numbers_Word_Problems/728145: Ten times the sum of 45 and 116 less than 5001 solutions Answer 445334 by Alan3354(30993)   on 2013-03-19 18:13:32 (Show Source): You can put this solution on YOUR website!Ten times the sum of 45 and 116 less than 500 ---------------- Do you have a question?
 Circles/728170: what is the radius of a circle with the equation of x^2+Y^2=91 solutions Answer 445333 by Alan3354(30993)   on 2013-03-19 18:12:18 (Show Source): You can put this solution on YOUR website!what is the radius of a circle with the equation of x^2+Y^2=9 ---------- Look up the standard form of equation of a circle.
 Linear-systems/728182: 2x+y=1 solutions Answer 445332 by Alan3354(30993)   on 2013-03-19 18:10:46 (Show Source): You can put this solution on YOUR website!2x+y= y + 2x
 Numeric_Fractions/728149: Please help. 7/8 - 9/20= 7 1/3- 4 5/12= 9 2/5- 1 1/4=1 solutions Answer 445320 by Alan3354(30993)   on 2013-03-19 17:17:37 (Show Source): You can put this solution on YOUR website!Please help. 7/8 - 9/20 Find a common denominator. The product always works, 8*20 = 160 7/8 - 9/20 = 140/160 - 720/160 = - 580/160 = -29/8 ----------------- 7 1/3- 4 5/12 Change to improper fractions 7 1/3- 4 5/12 = 22/3 - 53/12 Do it like the 1st one. ------------------ 9 2/5- 1 1/4 Same as the 2nd one.
 Quadratic-relations-and-conic-sections/728152: the equation for a circle is x^2+y^2=169 what is the radius1 solutions Answer 445319 by Alan3354(30993)   on 2013-03-19 17:14:15 (Show Source): You can put this solution on YOUR website!the equation for a circle is x^2+y^2=169 what is the radius ------------------- It's x^2 + y^2 = r^2 r^2 = 169 r = 13
 Polynomials-and-rational-expressions/728147: how do you find the product? EX: (x+5)(x-5)1 solutions Answer 445318 by Alan3354(30993)   on 2013-03-19 17:11:39 (Show Source): You can put this solution on YOUR website!how do you find the product? EX: (x+5)(x-5) ---------------- You multiply it. ----------------------- = x*(x-5) + 5*(x-5) = x^2 - 5x + 5x - 25 = x^2 - 25
 Radicals/728092: What does the + and - signs in front of a radical mean when they are both present.1 solutions Answer 445314 by Alan3354(30993)   on 2013-03-19 16:48:44 (Show Source): You can put this solution on YOUR website!What does the + and - signs in front of a radical mean when they are both present. -------------------- There are 2 values, or 2 solutions. One using + sqrt, one using - sqrt
 Square-cubic-other-roots/728083: (3rd root of -9)^51 solutions Answer 445312 by Alan3354(30993)   on 2013-03-19 16:44:50 (Show Source): You can put this solution on YOUR website!(3rd root of -9)^5 -------------- Both exponents (1/3 and 5) are odd, so the result will be negative. = - = - = - =~ -38.941
 Travel_Word_Problems/728121: Jackie drove 96 miles at an average speed of 24 miles per hour.how long did the trip take ?1 solutions Answer 445310 by Alan3354(30993)   on 2013-03-19 16:38:13 (Show Source): You can put this solution on YOUR website!Jackie drove 96 miles at an average speed of 24 miles per hour.how long did the trip take ? ---------------- d = r*t t = d/r
 test/728108: I really need help with algebra, I have a big test tomorrow?1 solutions Answer 445308 by Alan3354(30993)   on 2013-03-19 16:36:33 (Show Source): You can put this solution on YOUR website!I really need help with algebra, I have a big test tomorrow? --------- I don't know if you have a test tomorrow or not. I don't doubt you need help, tho.
 Linear-equations/728050: How do you solve this problem y=-5x step by step?1 solutions Answer 445284 by Alan3354(30993)   on 2013-03-19 14:38:15 (Show Source): You can put this solution on YOUR website!That's not a problem, it's an equation. What do you want to do?
 Linear-equations/728052: How do you solve this problem x=2y step by step?1 solutions Answer 445283 by Alan3354(30993)   on 2013-03-19 14:37:53 (Show Source): You can put this solution on YOUR website!That's not a problem, it's an equation. What do you want to do?
 Linear-equations/728053: How do solve this problem y=20x+5000 step by step?1 solutions Answer 445282 by Alan3354(30993)   on 2013-03-19 14:37:29 (Show Source): You can put this solution on YOUR website!How do solve this problem y=20x+5000 step by step? ------------------- That's not a problem, it's an equation. What do you want to do?
 Length-and-distance/727983: If the measurment of a circle is 24 in diameter, how many iches is that inside the circle?1 solutions Answer 445280 by Alan3354(30993)   on 2013-03-19 14:25:25 (Show Source): You can put this solution on YOUR website!If the measurment of a circle is 24 in diameter, how many iches is that inside the circle? ---------------- Not a reasonable question.
 Linear-equations/728044: How do you solve this problem x=-y+5 step by step?1 solutions Answer 445279 by Alan3354(30993)   on 2013-03-19 14:21:14 (Show Source): You can put this solution on YOUR website!How do you solve this problem x=-y+5 step by step? -------------- Solve for what?
 Linear-equations/728048: How do you solve this problem y=2x-14 step by step?1 solutions Answer 445278 by Alan3354(30993)   on 2013-03-19 14:20:25 (Show Source): You can put this solution on YOUR website!How do you solve this problem y=2x-14 step by step? --------------------- Solve for what?
 Length-and-distance/727991: What is the distance between the points (80, 55) and (20, 44)? 1 solutions Answer 445253 by Alan3354(30993)   on 2013-03-19 12:08:16 (Show Source): You can put this solution on YOUR website!What is the distance between the points (80, 55) and (20, 44)? ---------
 Expressions-with-variables/727758: i need help solving this problem: x+Y+3 2x+2y=61 solutions Answer 445184 by Alan3354(30993)   on 2013-03-18 21:11:11 (Show Source): You can put this solution on YOUR website!i need help solving this problem: x+Y+3 *********** no equal sign 2x+2y=6
 Trigonometry-basics/727777: Simplify the expression sinalpha secalpha cotalpha1 solutions Answer 445183 by Alan3354(30993)   on 2013-03-18 21:09:48 (Show Source): You can put this solution on YOUR website!Simplify the expression sinalpha secalpha cotalpha ---------- change all the functions to sine & cosine
 Equations/727781: I have a math problem, but I don't have the equation to solve it. I can't find it in my notes. If I just had the equation, i could figure it out. The problem is: How many different three-topping pizzas are possible given eight different toppings? Thank you! Madison1 solutions Answer 445181 by Alan3354(30993)   on 2013-03-18 21:08:55 (Show Source): You can put this solution on YOUR website!How many different three-topping pizzas are possible given eight different toppings? ---------------- There isn't always "an equation," sometimes you have to figure it out. ---- Assuming there's no mushrooms, mushrooms, mushrooms pizza, ie, the 3 toppings are different: the 1st choice is 1 of 8 then 1 of 7, then 1 of 6 = 8*7*6 = 336 possibilities.
 Rectangles/727705: A square has a perimeter of 88 inches. What is the length of each side?1 solutions Answer 445156 by Alan3354(30993)   on 2013-03-18 18:38:51 (Show Source): You can put this solution on YOUR website!A square has a perimeter of 88 inches. What is the length of each side? ------------- P = 4s where P = perimeter and s = side length
 Quadratic-relations-and-conic-sections/727678: What type of conic section is: 49(x+1)^2+3y^2=201 solutions Answer 445155 by Alan3354(30993)   on 2013-03-18 18:37:21 (Show Source): You can put this solution on YOUR website!What type of conic section is: 49(x+1)^2+3y^2=20 ----------- Hint: The signs of the x^2 and y^2 terms are the same, and the coefficients are different.
 test/727662: 4x-5y=01 solutions Answer 445152 by Alan3354(30993)   on 2013-03-18 18:06:51 (Show Source): You can put this solution on YOUR website!4x-5y=0 ================ Do you have a question?
 test/727676: Please help I can't understand this to help my daughter 7=2-5m; m=1 solutions Answer 445151 by Alan3354(30993)   on 2013-03-18 18:05:10 (Show Source): You can put this solution on YOUR website!7=2-5m; m= ------------ 7=2-5m Subtract 2 from each side 5 = -5m Divide by -5 -1 = m m = -1
 Linear-equations/727687: if m<1=45, what is m<3 if m<2=132, what is m<7 if m<2=118, what is m<5 if m<6=53, what is m<71 solutions Answer 445150 by Alan3354(30993)   on 2013-03-18 18:03:40 (Show Source): You can put this solution on YOUR website!if m<1=45, what is m<3 I don't know what that means. If they're angles, how is angle 3 related to angle 1? ------------------- if m<2=132, what is m<7 if m<2=118, what is m<5 if m<6=53, what is m<7
 Linear-systems/727686: Hi I need a little help with solveing linear systems using substitution This is a problem from my homework Please Help and thanks! x=y+3 2x-y=51 solutions Answer 445149 by Alan3354(30993)   on 2013-03-18 18:02:01 (Show Source): You can put this solution on YOUR website!Hi I need a little help with solveing linear systems using substitution This is a problem from my homework Please Help and thanks! x=y+3 2x-y=5 ------------- sub y+3 for x in the 2nd equation.
 �t�e�s�t/727682: Solve for x. 6^5x = 171 solutions Answer 445148 by Alan3354(30993)   on 2013-03-18 18:01:15 (Show Source): You can put this solution on YOUR website!Solve for x. 6^5x = 17 ------------ Is the exponent 5? or 5x? Use parentheses, post it again.