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 Test Calculators and Practice Answers archive Word Problems Lessons In Depth

 Question 183210: statistics Based on the information given for each of the following studies, decide whether to reject the null hypothesis. For each, give the Z-score cutoff (or cutoffs) on the comparison distribution at which the null hypothesis should be rejected, the Z score on the comparison distribution for the sample score, and your conclusion. Assume that all populations are normally distributed. Population Sample Tails Study μ õ Score p of Test A 5 1 7 .05 1 (high predicted) B 5 1 7 .05 2 C 5 1 7 .01 1 (high predicted) D 5 1 7 .01 2 Click here to see answer by stanbon(57424)

 Question 183217: the length of a rectangle is twice the width. the are is 200yd squared. find the length and the width Click here to see answer by edjones(7569)

 Question 183847: x^3 + 2x^2 - x -2 = 0 Click here to see answer by Earlsdon(6291)

 Question 183994: 1.Double the sum of a number and 6 is the same as 15 more than triple the same number. Find the number 2.Four less than seven time is the same as nine times the number . Find the number 3.8-x(2) for x = -3 4.-2x(2) - 5z = x= -2 z = -4 Click here to see answer by ankor@dixie-net.com(15667)

 Question 184316: Given the points P(-1,-6), Q(15,24), and M(7,9), prove that M is the midpoint of segment PQ. Click here to see answer by stanbon(57424)
 Question 184316: Given the points P(-1,-6), Q(15,24), and M(7,9), prove that M is the midpoint of segment PQ. Click here to see answer by solver91311(16897)

 Question 184438: if I am traveling 3200 miles and gas is \$2.00 a gallon, my car holds 16 gallons how much gas will it cost to travel 3200 miles Click here to see answer by ankor@dixie-net.com(15667)

 Question 184456: find the slope of (2,6) and (10, -8) find the slope and y intercept of 5x= 7y + 63 find the slope and y intercept of 8 - 1/5y =10x find the slope of (-4, -7) and (-15, -14) Click here to see answer by checkley77(12569)

 Question 184513: A suit selling for \$225 is marked down 25%, what is the sale price of the suit? a) \$135.00 b) \$200.00 c) \$168.75 d) None of these Click here to see answer by kailuen(7)

 Question 184512: A suit selling for \$225 is marked down 25% during a clearance sale. What is the amount of the discount? a) \$90.00 b) \$25.00 c) \$56.25 d) None of these Click here to see answer by kailuen(7)

 Question 184511: Find the total of the sale of 2 king-sized sheet sets @ \$18.95, 3 bedspreads @ \$22.95 with 6.78% sales tax. a) \$113.99 b) \$86.58 c) \$179.13 d) None of these Click here to see answer by kailuen(7)

 Question 184772: If a gold bracelet costs the retailer \$120, what should the selling price be in order that the mark-up be 35% of the selling price? a) \$162.00 b) \$78.00 c) \$184.62 d) None of these Click here to see answer by hustla7(3)

 Question 184927: 37000 people at ball game. Receipts were \$248,000. How many people paid \$12 for reserved seats, and how many paid \$5 for general admission? Click here to see answer by checkley77(12569)

 Question 185301: solve (square root of 3+2) (square root of 5+7) Click here to see answer by vleith(2825)

 Question 185302: rationalize the denominator + simplify Square root of 7 over square root of 3 + 5 Click here to see answer by vleith(2825)

 Question 185336: the number 2^7 x 3^4 x 5 x 7^2 x 11^3 is divisible by many perfect squares. How many? Click here to see answer by solver91311(16897)

 Question 185299: rationalize the denominator + simplify square root of 25 over 24 Click here to see answer by solver91311(16897)

 Question 185298: simplify square root of 6/r to the 4th power Click here to see answer by edjones(7569)

 Question 184575: Find the slope and the y intercept of 7x = 3y + 21 Find the slope if it exists of the line containing the pair of points (1,3) and (8,-2). Find an equation of the line having the given slope and containing the given point m= 9, (7,6) Find an equation of the line having the given slope and containing the given point m= 5/6, (4, -1). Find an equation of the line containing the given pair of points. Express your answer in the form x=a, y=b, or y=mx + 6. (-2,-2) and (8,8). Find an equation of the line containing the given pair of points. (-3, -9) and (-9, -2). Click here to see answer by Alan3354(30993)

 Question 185830: cindy biked @ 10phr for time and got a flat tire. she walked at 6mph. she has traveled total of 84 miles. if she had biked the hole time she would have gone 100 miles. how many hours did she walk? Click here to see answer by solver91311(16897)

 Question 184776: Dorca earns \$12.00 for each dress she produces. Each of Dorca's dresses sells for \$50. If the money she is paid were translated into a commission, what would that commision rate be? a) 38% b) 12% c) 24% d) None of these Click here to see answer by swiemers(10)

 Question 186391: When John sorts his collection of computer card games into groups of 3, 4, 5 and 8 there is always one card left. What is the smallest number of cards John can have? Please show the solution so I'm able to understand.. thanks in advance. God bless you all Click here to see answer by checkley77(12569)
 Question 186391: When John sorts his collection of computer card games into groups of 3, 4, 5 and 8 there is always one card left. What is the smallest number of cards John can have? Please show the solution so I'm able to understand.. thanks in advance. God bless you all Click here to see answer by stanbon(57424)

 Question 186515: prove that the triangle with vertices D(2,3), E(5,5), AND F(4,0) IS AN ISOSCELES, RIGHT TRIANGLE Click here to see answer by kev82(148)

 Question 186545: i am studying for my college placement test and i was trying to study up on my math when i realized i dont remember alot of the questions and there were alot of them that i never learned but i was wondering if you could send me some geometry notes to help me out. Click here to see answer by vleith(2825)

 Question 186666: do you tutors have a website in which you provide tutoring for calculis problems, if so please email me a link to the website Click here to see answer by jim_thompson5910(28598)

 Question 187106: A picture 10 inches by 19 inches is to be mounted on a piece of matboard so that there is an even amount of mat all around the picture. How wide will the border be if the area of the mounted picture is 400 square inches? Click here to see answer by checkley77(12569)

 Question 187236: find what x is so that 3x-1, 5x-4 and 2x+8 are consecutive terms of an arithmetic sequence. Click here to see answer by jim_thompson5910(28598)

 Question 187354: A ladder 30 ft. long leans against a wall, with it's foot 8 ft. from the wall. Find to the nearest degree which the ladder makes with the level ground? Please give the solution so I can understand it.. thanks^^ Click here to see answer by jojo14344(1512)

 Question 187352: Find to the nearest feet height of a flagpole which cast a shadow 44.8 ft. long when the angle of elevation of the sun was 36degrees. Click here to see answer by jojo14344(1512)

 Question 187350: How many different committees of 4 each can be chosen from a class of 15 members? Please give the solution so I can understand it.. thanks^^ Click here to see answer by Alan3354(30993)

 Question 187401: please help. i need answers. i have school tommorow and i need these by tommorow.pleasee. copy each problem. use estimation to place the decimal point in each product. a.(0.18)(6.1)= 1098 b. (318.7)(0.09)=28683 c.(5.91)(0.328)= 193848 d. (612.3)(2.85)=1745055 write each fraction as a decimal rounded to the nearest hundreth a. 3/8 b. 1/6 c.7/9 d. 4/7 e. 2/9 f. 5/12 g. 1/3 h. 3/11 i. 5/6 j. 6/11 k. 5/7 l. 7/8 m. 11/12 n. 4/9 o. 8/11 thanks you for your inconvience for my help thanks you.. Click here to see answer by solver91311(16897)

 Question 187481: how do you find the discriminant and tell the number of solutions of the equation??? 5x^2 - 2x +2 = 0 its algebra 2 Click here to see answer by Alan3354(30993)

 Question 187479: how do you write this in vertex form?? y= x{squared}+ 18x-4 it is algebra 2 Click here to see answer by nerdybill(6963)

 Question 187475: how do you write this in standard form and tell the number of solutions of the equation?? -7v{squared} + 3v + 4- 3v{squared} its algebra 2... Click here to see answer by stanbon(57424)

 Question 187659: What is the excatly the smallest number that is divisble by BOTH 6 and 8? Click here to see answer by user_dude2008(1861)

 Question 187722: Find the equation of the line through (0,2) and perpendicular to y= 3x-1. Please put the solution.. thank you for being so nice and helpful tutors..^^ Click here to see answer by stanbon(57424)

 Question 187730: Where will the line 3x+12y=24 cut the y-axis? Please put the solution.. thank you for being so nice and helpful tutors..^^ Click here to see answer by Earlsdon(6291)
 Question 187730: Where will the line 3x+12y=24 cut the y-axis? Please put the solution.. thank you for being so nice and helpful tutors..^^ Click here to see answer by nerdybill(6963)

 Question 187742: One end of a line segment is (1,-2). If the midpoint of the segment is (4,3), find the coordinate of the other endpoint of the segment. Thanks for the big help.. Kindly put the solution.. Click here to see answer by stanbon(57424)

 Question 187732: The center of the circle (x+1)^2 + y^2 = 4 Please put the solution.. thank you for being so nice and helpful tutors..^^ Click here to see answer by mgmoeab(28)

 Question 187743: The equation of the line through (3, -1) and parallel to the line through (1,2) and (2,1). Thanks for the big help.. Kindly put the solution.. Click here to see answer by jojo14344(1512)

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