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Question 436825: The path of a baseball thrown in an arch the shape of a parabola is given by the quadratic equation y= -16t^2+2t+10, where T is time in seconds and Y is the height of the ball in its flight through the air.
Use the quadratic Formula to find at what time,T, the ball hits the ground. Write your answer in exact form and as a decimal rounded to the nearest hundredth. [Hint: y=0 when the ball hits the ground.]
Click here to see answer by ankor@dixie-net.com(15645)

Question 437032: The square of a positive number minus the original number equals 72. What is the original number?
6
7
8
9
10
Click here to see answer by oberobic(2304)

Question 437036: t+12/t-8
Click here to see answer by oberobic(2304)

Question 437121: 15. sue can shovel snow from her driveway in 30mins. jim can do the same job in 35mins. how long would i ttake sue and ime to shovel teh driveway if they worked together?
16.simplify by removing factors of 1 (7y-14)/2-y
Click here to see answer by mananth(12270)

Question 437148: Express 4173 in scientific notation
Click here to see answer by josmiceli(9664)

Question 437168: James wishes to enclose a rectangular dog kennel with 150 feet of fencing. He would like the kennel to be twice as long as it is wide. What must be the kennel's dimensions?
Click here to see answer by rfer(12654)

Question 437160: A rectangular storage area is 8.0 meter longer than it is wide. If the area is 28m^2, what are its dimensions?
Click here to see answer by oberobic(2304)

Question 437276: Write an equation in point slope form of the line that passes through the given points ( -3, 1/2) ; (-7,5/2)
Click here to see answer by mananth(12270)

Question 437259: Solve. A boat moves 5 kilometers upstream in the same amount of time it moves 17 kilometers downstream. If the rate of the current is 8 kilometers per hour, find the rate of the boat in still water.
A. 7 1/12 kilometers per hour
B. 3 1/3 kilometers per hour
C. 8 kilometers per hour
D. 14 2/3 kilometers per hour
Click here to see answer by mananth(12270)

Question 437280: What are the solutions of 4x^2+48x+20=0
Click here to see answer by ewatrrr(10682)

Question 437275: Determine which of the following lines, if any, are perpendicular or parallel
Line A: 3y+x=6; line b: y=3x+2; line c: 3x+y=0
Click here to see answer by ewatrrr(10682)

Question 437262: If y varies directly as x, find the direct variation equation for the situation. y = 27 when x = 21
A. y = (9 / 7) x
B. y = x + 6
C. y = 3x
D. y = (7 / 9) x
Click here to see answer by ewatrrr(10682)

Question 437264: Solve. The amount of time it takes a swimmer to swim a race is inversely proportional to the average speed of the swimmer. A swimmer finishes a race in 75 seconds with an average speed of 4 feet per second. Find the average speed of the swimmer if it takes 60 seconds to finish the race.
A. 5 feet per second
B. 4 feet per second
C. 7 feet per second
D. 6 feet per second
Click here to see answer by ewatrrr(10682)

Question 437261: A painter can finish painting a house in 3 hours. Her assistant takes 5 hours to finish the same job. How long would it take for them to complete the job if they were working together?
A. 2 hours
B. 8 hours
C. 15 hours
D. 1 7/8 hours
Click here to see answer by ewatrrr(10682)

Question 437282: what are the solutions of
4x^2-16x=16x-39
Click here to see answer by nerdybill(6951)

Question 437071: The sum of 3 consecutive even integers is 294 what are the integers?
Click here to see answer by ewatrrr(10682)

Question 437071: The sum of 3 consecutive even integers is 294 what are the integers?
Click here to see answer by Alan3354(30993)

Question 437281:
Click here to see answer by ewatrrr(10682)

Question 437296: How many solutions does 5x^2-2x+3 have?
Click here to see answer by stanbon(57282)

Question 437296: How many solutions does 5x^2-2x+3 have?
Click here to see answer by nerdybill(6951)

Question 437295: What is the value of the discriminant of the equation 6x^2-5x-3=0?
Click here to see answer by nerdybill(6951)

Question 437295: What is the value of the discriminant of the equation 6x^2-5x-3=0?
Click here to see answer by josmiceli(9664)

Question 437301: what is the degree of -5a^2b +4a^2-2b+5
Click here to see answer by rwm(914)

Question 437408: Factor this equation
9c^3-12c^2+18c-24

Click here to see answer by stanbon(57282)

Question 437377: Can you please solve the equation by completing the square: -10x=3x²-2
Click here to see answer by ankor@dixie-net.com(15645)

Question 437495: 26+17n+-42 please help me solve what n is

Click here to see answer by solver91311(16872)

Question 437495: 26+17n+-42 please help me solve what n is

Click here to see answer by stanbon(57282)

Question 437498: (6c-5)(6c+5)
Click here to see answer by rfer(12654)

Question 437516: K=8k+28
Click here to see answer by unreal4evr(11)

Question 437559: X squared plus 10x =24
Click here to see answer by shree840(260)

Question 437624: the quotient when the quantity of a number y increased by 4 is divided by 6
Click here to see answer by ankor@dixie-net.com(15645)

Question 437667: How do you graph 3x^2+3y^2=21
Click here to see answer by robertb(4012)

Question 437734: find the missing angle measure in quadrilateral STUV. S 150, V 55, U N, T 45? 150*45*55 383625 / 3 =127875
Click here to see answer by richard1234(5390)

Question 437743: Write the slope-intercept form of the equation of each line 3x-2y=-16
Click here to see answer by Alan3354(30993)

Question 437787: to pay for the orded. How many bracelets and how many necklaces did Rosaria purchase?
Click here to see answer by richard1234(5390)

Question 437790: At a local convenience store, 2 bags of chips and 7 containers of dip cost $23. However,3 bags of chips and 4 containers of dip cost $15. What is the cost of one bag of chips and one container of dip?
Click here to see answer by ewatrrr(10682)

Question 437903: What is the center and radius of the circle. (x-5)+(y-1)=9.61
Click here to see answer by Alan3354(30993)

Question 437906: On a buying trip in L.A,Don ordered 120 peices of jewelry:a number of bracelets $5 each and a number of necklaces at $14 each.He wrote a check for $1230 to pay for the order.How many braclets and how many necklaces did Don purchase. Larry
Click here to see answer by josmiceli(9664)

Question 437985: When multiple discounts are used, if an item is first discounted by 40%, then again by 30%, and then again by 10%, the final or cumulative discount is ______ off the original price. a. 62.2% b. 70% c. 72.6% d. 80%
Click here to see answer by rfer(12654)

Question 438028: Sally can clean the house in 6 hours her father can clean the house in 4 hours and her younger brother dennis can completely mess up the house in 8 hours if sally and her father clean and Dennis plays how long will it take to clean the house?
Click here to see answer by ankor@dixie-net.com(15645)

Question 438086: For his morning workout a boxer bicycles for 8 miles and then jogs back to camp along the same route. If he bicycles 6 mph faster than he jogs, and the entire workout lasts 2 hours, how fast does he jog?
Click here to see answer by ankor@dixie-net.com(15645)

Question 438233: The age of grandmas two grandkids are the same as the two digit of her age. The three of them are 73 years old all together,how old is grandma?
Click here to see answer by ankor@dixie-net.com(15645)

Question 438372: solve by factoring: 1-16x^2=0

Click here to see answer by nerdybill(6951)

Question 438387: A group of 9 people shared 4 gallons of apple cider at a country in. What fraction of the cider did each person get?
Click here to see answer by jorel1380(2518)

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