Questions and answers by

slomo

Questions (69)

Listed below are the duration's (in hours) of a simple random sample of all flights of a space shuttle program. Find the range,
1. 4 answers
2. 1,373 views
Below are 36 sorted ages of an acting award winner. Find P10 converting a percentile to a data value17 21 22 22 22 23 24 30 31
1. 3 answers
2. 1,107 views
Explain why this is or is not a probability distribution.x 1 2 3 4 P(x) 0.4 0.3 0.4 -0.1 Please I do not understand!!
1. 1 answer
2. 360 views
One of the tallest living men has a height of 263 cm. One of the tallest living women is 245 cm tall. Heights of men have a
1. 2 answers
2. 1,009 views
Listed below are the duration's (in hours) of a simple random sample of all flights of a space shuttle program. Find the range,
1. 2 answers
2. 609 views
Identify the level of measurement of the data and explain what is wrong with the given calculation. In a set of data, movie
1. 3 answers
2. 1,116 views
A polling company reported that 53% of 2302 surveyed adults said that they play basketball.a. what is the exact value that is
1. 3 answers
2. 1,959 views
Suppose we want to estimate the average number of purchases in a given hour in a local convenience store. Using this example
1. 1 answer
2. 667 views
Describe whether the following study would most likely be “observational” or “experimental”, and why it would be so.*
1. 3 answers
2. 615 views
A candidate for a political office claims that he will win the election. A poll is conducted, and 35 of 150 voters indicate that
1. 1 answer
2. 514 views
write a quadratic equation having the given numbers as solutions. -6 and -4Not sure how this is to be written into an equation.
1. 2 answers
2. 533 views
Multiply and simplify. Assume that no radicands were formed by raising negative numbers to even powers.√6x3 √18x2 I have
1. 2 answers
2. 883 views
Solve.9x^2 + 12x = 32 x2 + (4/3)x - (32/9) = 0 has two solutions: x = -2/3 + √ 4 or x = -2/3 - √ 4 This is the solution I
1. 2 answers
2. 475 views
Solve. Simplify your answer. Type an exact answer using radicals as needed.y^2 + 31 = 12y Solution y = {8.236067978,
1. 3 answers
2. 2,120 views
Multiply and simplify. Assume that no radicands were formed by raising negative numbers to even powers.√6x^3 * √18x^2 = √2
1. 2 answers
2. 484 views
Use the laws of exponents to simplify5/(6^12) 2/9 = I am not sure how to do this at all. Please and Thank you
1. 1 answer
2. 432 views
the sum of two numbers is 21. The first number is 2/5 of the second number. what are the numbers?Help, I have been trying to
1. 2 answers
2. 556 views
Solve each system graphically. If a system has an infinite number of solutions, use set builder notation to write the solution
1. 4 answers
2. 1,162 views
Factor completely.48w^2 + 120w +75= 3((5 + 4w)(5 + 4w)) is this correct??
1. 1 answer
2. 479 views
Factor by grouping even though it would seem reasonable to first combine like terms.30b^2 + 25b + 36b + 30 = This practice
1. 1 answer
2. 533 views
Factor the trinomial.Factor completely.s^2 + 3s – 28 = 4s^2 – 24 Is this correct?? Please and thank you.
1. 2 answers
2. 683 views
Divide. (2b^2 + 2b - 9)/(b-3)2b2 + 2b - 9 ———————————— =2b+8 b - 3 Is this the correct answer? Please
1. 2 answers
2. 577 views
Multiply. (x+4)(x-2) = x^2+2x-8Is the answer correct, if not can you please point out what I did wrong? Please and Thank you
1. 1 answer
2. 425 views
Subtract.(4+6x+7x^2+4x^3)-(-3+6x-7x^2+4x^3)= 7(2x^2 + 1) or 7 * (2x^2 +1) I know this is basically the same answer but is one
1. 1 answer
2. 409 views
convert to decimal notation. 5.623 * 10^-8is the correct answer 0.00000005623? If not can you correct me Please and Thank you!!
1. 2 answers
2. 609 views
Simplify your answer and use positive exponents only(a3b)3(a4b8) ^ ^ ^ ^ The answer I got was 3a7b9 ^ ^ is this correct? Please
1. 2 answers
2. 695 views
Solve by factoring: x2 + 5x = −6x^2 + 5x + 6 = 0 2+3 = 5 and 2x3 = 6 so (x-2)(x-3) = 0 then x-2=0 or x-3 = 0 x = 2 or x = 3
1. 1 answer
2. 441 views
Find the quotient6s^7p^8-6s^5p^6+27s^3p^4 _________________________ 3s^3p Please help, I am lost on this process
1. 1 answer
2. 361 views
Divide36x^3-73x^2-45x-6 __________________ 9x + 2
1. 2 answers
2. 500 views
Solve by factoring: x^2 + 5x = −6Please help! I have a test next week and this is one of the practice problems and I do not
1. 3 answers
2. 508 views
Solve using the Quadratic Formula (Find all complex-number solutions.) x2 + 4x + 6 = 0I do not get this at all and this is just
1. 2 answers
2. 903 views
factor completely. -49x^2-35x-6Please help with this, I know you multiply the two outer numbers which =-294, I am just having
1. 2 answers
2. 779 views
Factor completely. If a polynomial is prime, state thisx^2 -2/5x + 1/25 I am having trouble getting how this is done!
1. 1 answer
2. 484 views
Is this correct with addition and simplified.(5x^2-7x+23)+2x^2+9x-72)=7x^2-7x+9x+23-72=7x^2+2x+49
1. 1 answer
2. 362 views
Multiply using the rule for the square of a binomial. (7x + 4)^2
1. 2 answers
2. 622 views
Subtract the polynomials(6v^2 + 7vd - 3d^2) - (9v^2 - 5vd + 19d^2)
1. 2 answers
2. 502 views
find three factorizations for the monomial 72x^872x^8 is 12x^4 * ?
1. 2 answers
2. 668 views
solve using the elimination method.x + 3y = 20 -x + 2y = 0
1. 1 answer
2. 430 views
solve the system of equations using the substitution method8x - 9 = y y - 8x = 4
1. 1 answer
2. 431 views
solve using the substitution method.-8x + y = 18 9x + 13y = 8
1. 2 answers
2. 546 views
Solve the given system by the substitution method.3x + y = 17 5x -2y = 10
1. 2 answers
2. 700 views
solve using the substitution method.y= 5 - 3x 4x + y= 7
1. 2 answers
2. 525 views
solve each system graphically. if a system has an infinite number of solutions, use set-builder notation to write the solution
1. 2 answers
2. 514 views
solve the system of equations using the substitution method. 8x-9=y, y-8x=-4
1. 1 answer
2. 432 views
I need to be shown the steps on how you derive at this answer(5a^7 / 2b^5c)^0 = 1
1. 3 answers
2. 608 views
Simplify. Do not use negative exponents in the answer.12x-2y4 -3xy-7 There should be a line between like a fraction but it did
1. 3 answers
2. 1,049 views
One evening 1500 concert tickets were sold for the Fairmont summer jazz festival. Tickets cost $25 for covered pavilion seats
1. 4 answers
2. 1,306 views
Translate to a system of equations. But do not solve.A nontoxic floor wax can be made from lemon juice and food-grade linseed
1. 2 answers
2. 628 views
Solve each system graphically. Be sure to check your solution.If a system has an infinite number of solutions, use set-builder
1. 2 answers
2. 673 views
Solve each system graphically. Be sure to check your solution.If a system has an infinite number of solutions, use set-builder
1. 2 answers
2. 756 views
Simplify. Do not use negative exponents in the answer.12x-2y4 -3xy-7
1. 1 answer
2. 424 views
Raising a product or a quotient to a powerSimplify. Assume that no denominator is 0 and that 00 is not considered ├ (
1. 3 answers
2. 491 views
Determine if the ordered pair ( -5,2) is a solution to the following system of equations.x + 3y = 1 y = 3x + 17
1. 3 answers
2. 976 views
Simplify-4^3 – 2 * 4^2 45 ÷ 3^2 – (3-|2-16|) There should be a line between the top numbers and the bottom, like in a
1. 2 answers
2. 532 views
I have been trying to solve this for two hours help.Determine whether the ordered pair (-5,2) is a solution of the following
1. 1 answer
2. 440 views
I can find no solution to this system of equations.Solve the system of equations using the substitution method 2x + 4y = -2 2x -
1. 2 answers
2. 609 views
Help! I am stumped on this one.Graph the equation 15x + 5y = 10 Thanks! I have been working on these practice problems for two
1. 3 answers
2. 721 views
system of equations, the sum of two numbers is 46. the first number is 3/20 of the second numberis it x + y = 46, x = 3/20y?
1. 3 answers
2. 524 views
the area of a rectangle with base b and height h is bh. A rectangle sports goal is 9 ft wide and 8 ft high. Find the area of the
1. 2 answers
2. 660 views
one less than the product of two numbers is 57. let m and b represent the unknown numbersis it mb - 1 = 57
1. 1 answer
2. 343 views
what is the opposite of -17/22
1. 1 answer
2. 335 views
Blending spice:Spice of life sells ground sumac for $1.35per ounce and ground thyme for $1.85 per ounce. Aman wants to make a 20
1. 3 answers
2. 648 views
Translate problem situation to a system of equations. Do not solve. The sum of two numbers is 10 the first number is 2/3 of the
1. 2 answers
2. 536 views
bobpursey, In this problem you helped me with earlier:Solve using any appropriate method. y = 2× - 5, y = ½× + 1
1. 2 answers
2. 713 views
I pretty much know this problem4y+2x=18 3x+6y=26 multiply -3= -6x+-12y= -54 multiply 2 = 6x+-12= 52 The answer is -2 but I am
1. 3 answers
2. 502 views
Solve using the appropriate method. Substitution or Elimination.y = 2x - 5, y = 1/2x + 1 This morning I posted a question that
1. 2 answers
2. 595 views
Bosnian, I really could use your help on one other problem. I have been working on it and what helps is that you show the steps.
1. 2 answers
2. 593 views
Help!! I am having difficulty with a problem for hours now and if I could get some help, my head might stop pounding.Solve each
1. 2 answers
2. 623 views
What safety and health problems are associated with storing radioactive waste in deep geological repositorites?
1. 1 answer
2. 386 views