Answers created by Nallasivam V

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• A group of volleyball players consists of four grade 11 students and six grade 12 students. If six players are chosen at random to start a match, what is the probability that three will be from each grade?
  
• How do you solve this system of equations using the substitution method #x- y = 1 and 4x + 9y = - 87#?
  
• What are the important points needed to graph #f(x)= x^2 - 10x + 5#?
  
• If a homeowner pays $8000 a year in taxes for a house valued at $250,000, how much would a homeowner pay in yearly taxes on a house valued at $175,000?
  
• How do you graph #y = (x - 2)^2 + 1#?
  
• How do you use the important points to sketch the graph of #f(x) = x^2 - 3x + 5#?
  
• What are all the solutions of #0.7(x−7)−4.9=5.7#?
  
• Solve this expression 4/1/3 ?
  
• What is the standard form of the equation of the parabola with a directrix at x=-5 and a focus at (-6,7)?
  
• How do you write a linear equation that related the cost c and the number x of copies delivered if the cost to a newspaper company for sunday home delivery is approximately $0.45 per newspaper with a fixed costs of $2,080,000?
  
• How do you graph and label the vertex and axis of symmetry #y=1/3x^2+3x-2#?
  
• A teacher had $57.72 in his checking account. He made a deposit of $209.54. Then he wrote a check for $72.00 and another check for $27.50. What is the new balance in his checking account?
  
• A salesman makes both a base salary and also a commission, which is a percentage of what he sells. Each month, if his sales total s dollars, he makes a total of 2000 + 0.1s dollars. What does 2000 represent?
  
• Is #y= -4/x# a linear equation?
  
• How do you combine like terms in #(6n ^ { 3} - 7+ 6n ^ { 2} ) + ( 4- 7n ^ { 2} - 6n ^ { 4}) + (8n^4 - 8n )#?
  
• How do you evaluate #4(3+5)2#?
  
• Is the parabola described by #y=2x^2# wider or narrower than the parabola described by #y=x^2#?
  
• How do you solve A system of Equations? -y + 2x = 4 2x - = -4 Thanks!
  
• How do you graph the parabola #y=7/4x^2# using vertex, intercepts and additional points?
  
• How do you find the vertex and intercepts for # f(x) = -7x^2 + 3x + 1#?
  
• What is the standard form of #y=(2x+7)(-3x-3) -4x^2-8x#?
  
• How do you solve #\frac{x - 8}{3} = - 6#?
  
• How do you identify the important parts of #f(x)= 3x²+x-5# to graph it?
  
• How do you multiply #(3k + 3) ( 2k ^ { 2} + 4k + 2)#?
  
• How do you find the x and y intercepts for #y=x-3#?
  
• Zoe has 5 pounds of potatoes. She has multiple recipes that require #3/4# pounds of potatoes. How many recipes will she be able to make?
  
• How do you graph the parabola # y = x^2 + 4x + 1# using vertex, intercepts and additional points?
  
• How do you solve #-9u - 2u + 2u = - 18#?
  
• How do you write the vertex form of a parabola with (3,2.5) and (4,5.5)?
  
• Xavier has a student loan with a principal of $7500. His student loan has a 4.9% simple interest rate per month. After 4 months, how much money will he owe including principal and interest?
  
• How do you graph the parabola #f(x)= -(x+4)^2 + 9# using vertex, intercepts and additional points?
  
• How do you simplify # 3(9k-4)-4(5n-3)#?
  
• What is the Z-score that has 95.91% of the distribution's area to the left?
  
• How do you simplify #7 - 25 + 6 / 50# using order of operations?
  
• Suppose you are starting an office-cleaning service. You have spent $315 on equipment. To clean an office, you use $4 worth of supplies. You charge $25 per office. How many offices must you clean to break even?
  
• How do you factor #9x ^ { 2} + 31x - 20#?
  
• What is the vertex of # y=2(x/2-2)^2-4 #?
  
• Find the vertex of y=-(x-1)(x+4)?
  
• What is #[(-3x-8y=20),(-5x+y=19)]#?
  
• What is the equation in standard form of the parabola with a focus at (14,-19) and a directrix of y= -4?
  
• A dealer sold a car for $12 000 and made a profit of 25%. ( Note that here selling price = cost price + profit.) How much did the car cost the dealer?
  
• How do you find the focus, directrix and sketch #y=x^2+2x+1#?
  
• For the following equation y = 7 x - 5 , which of the given ordered pairs are solutions (-5, 0) (0, -5) (0, 0) (1, 2) (-2, -19)?
  
• Liana would like to earn $500 each month at her part-time job. So far this month she has earned $342.46 How much more must she earn to reach her goal?
  
• How do you write #y = 4(x-3)^2+1 # in standard form?
  
• What quadrant is the coordinate (0,4) in?
  
• Susan purchased some municipal bonds yielding 7% annually and some certificates of deposit yielding 9% annually. if Susan's investment amounts to $19,000 and the annual income is $1,590, how much money is invested in bonds and deposits?
  
• How do you solve the following linear system: # 10x + 25y = 55 , 2x + 5y = 11 #?
  
• How do you solve #6y + 3( y - 9) = 4( y + 1) - 2#?
  
• Henry Devine bought a new dishwasher for $320. He paid $20 down and made 10 monthly payments of $34. What actual yearly interest rate did Henry pay?
  
• How do you simplify #( 2x ^ { 3} y ^ { 4} ) ^ { 3}#?
  
• How do you solve the system #y=3x-11# and #7x+4y=-6#?
  
• How do you graph the parabola #y = (x - 3)^2 + 5# using vertex, intercepts and additional points?
  
• What is the standard form of # y= (x+2)^2 -(x+3)^2 #?
  
• How do you simplify and divide #(a^3b^2-a^2b+2a)(-ab)^-1#?
  
• You invest $2500 into an account that pays 6% interest compounded bi-monthly. How much money will be your account after 4 years?
  
• How do you find the slope perpendicular to #5x+2y=10#?
  
• In an election between two candidates A and B 20% did not participate in voting 200 casted not declared invalid and when you got 60% of valid votes and won by 600 votes Find the no. of voters participate in voting?
  
• Hi whats the summation notation for 2 + (-4) + 6 + (-8) ? Thanks.
  
• Calculate the gradient of the curve at the point where x = 1 ? y = x^3 +7
  
• How do you use the formula to solve these problems: initial deposit of $500, at 8% for 3 years?
  
• What is the equation in standard form of the parabola with a focus at (21,15) and a directrix of y= -6?
  
• At the toy store you could get 3 board games for $16.47. Online the price for 5 board games is S27.70. Which place has the highest price for a board game?
  
• If a rectangle is 17 ft long and 8 ft wide, what is its perimeter?
  
• How do you find the equation for the parabola with the vertex (1,4) that passes through the point (3,8)?
  
• How do you solve #sqrt(x+3)=5#?
  
• How do you solve the system of equations by graphing and then classify the system as consistent or inconsistent #9x-8x=16# and #8y-9x=-16#?
  
• A rectangular picture measuring 3 in. by 5 in. is surrounded by a frame with uniform width x. How do you write a quadratic function in standard form to show the combined area of the picture and frame?
  
• How do you find the vertex and intercepts for #f(x)= -4x^2 + 4x + 4#?
  
• What is the slope of the line passing through the following points: # (1, 3), (-3,9)#?
  
• Why are mean, median, and mode measures of central tendency?
  
• What is the slope of the line passing through the following points: # (3,15) ; (0, -6) #?
  
• How do you graph the parabola #y=2x^2+9#?
  
• What is the axis of symmetry and vertex for the graph #y = -3x^2 + 12x + 4#?
  
• A stadium manager spends $50,000 on TV ads and $37,000 on cable TV ads. What percentage of his advertising expenditures is spent on cable TV?
  
• How do you solve #8x + 3- 10x = - 2( x - 2) + 3#?
  
• How do you find a standard form equation for the line with (-2, 1) and (2, 1)?
  
• How do you find the vertex and intercepts for #y=2x^2+3x-8#?
  
• What is the standard form of a polynomial #(x+3)(x+4)(x+5) #?
  
• What is #(6x^2+3x)+(2x^2+6x)#?
  
• How do you solve #-10x^2 + 30x - 20 = 0.#?
  
• How do you use synthetic substitution to find #P(x) = 4x^3-12x-2# for #x=5#?
  
• How do you solve for y in #6y^2-5y=6#?
  
• How do you solve #7x - 2= 3x + 18#?
  
• Y=2x^2+4x-5 into vertex form?
  
• The equation of a circle and its graph passing through (1,1) and (1,-1) centred at (0-2) is?
  
• How do you find the slope and y-intercept for the line #11x + 8y = 40#?
  
• How do you solve #x( x - 5) = 66#?
  
• On Monday Cody picked up #2/5# of a pound of cans to recycle. On Tuesday he picked up #1/2# that amount. How many pounds did Cody pick up on Tuesday?
  
• How do you evaluate #f(x) =4x+3# for #f(-5)#?
  
• How do you factor #5x(a+b) + 3(a+b)#?
  
• How do you simplify #\frac{\frac{2}{3}}{\frac{7}{8}}#?
  
• On a standard measure of hearing ability the mean is 300 and the standard deviation is 20. What is the raw score for people whose z scores on this test are -4.5?
  
• Solve . #(2m+3)+12/(2m+3)+13=0#?
  
• How do you graph the parabola #y= 2x^2+4# using vertex, intercepts and additional points?
  
• How do solve the following linear system?: # 5x+y=6 , 12x-2y=-16 #?
  
• How do you solve #2x-8=6x+15#?
  
• What is the y-intercept of the line with equation #x/3-y/2=1#?
  
• How do you simplify #(16sqrt21) / (2sqrt7)#?
  
• Rami bought 4 pairs of jeans. His total bill, including tax, was $80.29. If each pair of jeans cost $18.50 before tax was added, what tax rate did Rami pay on the jeans?
  
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