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algebra
Solve each equation by factoring. 7x²243=0 I know I'm supposed to add 243 to the other side but don't know what else to do. Divide maybe? Thanks in advance. 243+7x^2= 0 (reorder) 243+243+7x^2 = 0+243 (add 243 to both sides)
asked by Sir Galahad on November 27, 2006 
Math
Find X 27^4x2=243^3x+6 Please explain how to do it. Thanks 27^(4x2)=243^(3x+6) Notice that 27 and 243 are both multiples of 3 Changing them.. (3^4)^(4x2)=(3^6)^(3x+6) 3^4(4x2)= 3^6(3x+6) taking the log base 3 of each side.
asked by K on November 28, 2006 
Math
Find X 27^4x2=243^3x=6 Please Explain Thanks Is this a repeat of the problem you posted earlier? If so, it should be 274x2 = 2433x+6 You might try it the hard way. (4x2)*log 27 = (3x+6)*log (243) Solve for x. I get 12. Post
asked by K on November 28, 2006 
math
5 people measured a metal bar using the same measuing instrument,but each read the scale to a different level of accuracy.their 5 answers are show below.4 of them are correct(to the chosen level of accuracy),but one is not.which
asked by sarah on July 20, 2013 
MATH URGENT
The prime factorization of 243 is 3*3*3*3*3. Write 243 as the product of two powers of 3 in as many ways as possible. Thank you
asked by SPIKE on January 8, 2013 
Math
Geometric series: Finite and infinite n=5 a1=243 r=2/3 i=1 This is the equation 243(2/3)^i My answer is 633 n=infinity sign a1=5 r=1/4 i=1 The equation 5(1/4)^i1 I think its undefined
asked by Aria on June 1, 2017 
math
A score of 243 is a "basic" reading level. Scores for a random sample of 3000 students had a xbar = 250 with a standard error 1.0 The 99% confidence interval for the mean score all students in the city is 247.4 to 252.6. Ques: Is
asked by please help on March 16, 2013 
Algebra
Write a function rule to represent the situation: The volume, V, remaining in a 243 ft^3 (cubed) pile of gravel decreases by .2 ft^3 (cubed) with each shovelful, s, of gravel spread in a walkway. I think: V=243 ft^3  .2 ft^3s
asked by PicturesDon'tChangeThePeopleInsideOfThemDo on November 6, 2017 
math
A score of 243 is a "basic" reading level. Scores for a random sample of 3000 students had a xbar = 250 with a standard error 1.0 The 99% confidence interval for the mean score all students in the city is 247.4 to 252.6. Ques: Is
asked by please help  urgent on March 16, 2013 
Sequence
What is the fifth term of the sequence a sub n = 1/3^n? a)1/12 b)1/81 c)1/243 d)1/15 If the sequence starts at n = 1 (there is no reason why it should) then it is 1/243
asked by raven 31791 on March 8, 2007 
Math
The sum of two counting numbers is 243. Half of one number is four times the other number. What are the numbers? 121.1+122.2=243.2
asked by Anonymous on February 8, 2015