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 Test Calculators and Practice Answers archive Word Problems Lessons In Depth

 Question 379273: A parabola has the following characteristics: zeros = -4, 1 axis = -1.5 V (-1.5,-2) What is the equation for the factored form of the quadratic relation? Please clarify. Click here to see answer by stanbon(57967)

 Question 379419: If f(x)= the square root of x and g(x)= 5x-6. Then what is f/g Click here to see answer by stanbon(57967)

 Question 379464: 12x to the 9th power over 4x to the 4th power. Click here to see answer by Fombitz(13828)

 Question 379501: Most staircase in use today have 9 inch treads and 8.5 inch risers. What is the slope of a staircase with these measurements? Click here to see answer by rfadrogane(214)

 Question 378919: An electric radiator which is an ordinary constant resistor emits a heating power of 1.2 KW at a mains supply voltage of 230 V. what is the total heating power in each respective instance when two such radiators are connected a) in parallel, and b) in series to the 230 V supply voltage ? Click here to see answer by rfadrogane(214)
 Question 378919: An electric radiator which is an ordinary constant resistor emits a heating power of 1.2 KW at a mains supply voltage of 230 V. what is the total heating power in each respective instance when two such radiators are connected a) in parallel, and b) in series to the 230 V supply voltage ? Click here to see answer by Alan3354(31529)

 Question 379742: the sum of 2 consecutive odd numbers is 44. what is the smaller number? Click here to see answer by ewatrrr(10682)

 Question 378424: Suppose the population of a city 50,000 and is growing 3 % each year. A. The initial amount is ? B. The growth factor b is 100% + 3% which is 1 + ? = ? C. To find the population after one year, you multiply 50,000 • ? d. Complete the equation y = ? • ? To find the population after x years. E. Use your equation to predict the population after 25 years Click here to see answer by dpurcell58(1)

 Question 380030: Write the equation in standard form with integer coefficients. y=-.4x+1.2 Click here to see answer by Fombitz(13828)

 Question 380117: If i have a 66.5 grade in my pre calculus class that only counts for 75% of the material covered, what grade do i need to get in my final exam that is worth 25% of my overall grade to pass the class with at least a B? i just dont know how to calculate the percentage of the final(25%). Click here to see answer by kingme18(98)

 Question 380383: How do you write this sentence as an inequality? The maximum safe exposure limit of formaldehyde is 2 parts per million. Click here to see answer by rfer(12730)

 Question 380404: 2 pipes are connected to a tank. On pipe fills the tank in 7 hours. The second pipe empties the tank in 9 hours. If both pipes are open, how long will it take to fill the tank? Click here to see answer by Earlsdon(6294)

 Question 380401: 2 pipes are connected to a tank. One pipe fills the tank in 7 hours. The second pipe empties the tank in 9 hours. If both pipes are open, how long will it take to fill the tank? Click here to see answer by Alan3354(31529)

 Question 378471: Find the quadratic equation with a maximum value of 10 and x-intercepts of 1 and 3 Click here to see answer by robertb(4012)

 Question 380394: The Rainbow Bridge is Utah, is a natural arch that is approximately parabolic in shape. The arch is about 88 m high. It is 84 m across at its base. Determine a quadratic relation, in factored form, that models the shape of the arch. Click here to see answer by Fombitz(13828)

 Question 380562: 2k -3 divided by -5 is greater than 7 Click here to see answer by ewatrrr(10682)

 Question 380377: I need to brush up on my algebra and geometry for a teaching assistant job. How do I get the app for BlackBerry Storm2? Click here to see answer by rfer(12730)

 Question 380738: What formula to be used when P(x) is of degree four? Click here to see answer by richard1234(5390)

 Question 381346: The weight of a bucket of golf balls is the function of the number of balls each of which weighs 1.6 oz. Model each situation with the linear functions and graphs Is reasonable to include negative numbers in the range ? Click here to see answer by richard1234(5390)

 Question 381386: Natalie spend 90 minutes doing her math and english homework. The time he spends on her math homework is a function of the time she stands on her english homework Click here to see answer by robertb(4012)

 Question 381558: Jack works part time in order to earn money and purchase baseball cards. He gets paid for \$8 per hour on the job and he uses all and the only the earning for buying baseball cards. Suppose that the baseball cards he purchases are priced at \$5 each. Let y be the number of cards he gets and let t be the number of Jack's worked hours. Write y as a function of t in function notation. Click here to see answer by stanbon(57967)

 Question 381761: Solve 40 + 16 sin x − 56 = 0 in the interval 0 x 2 Click here to see answer by stanbon(57967)

 Question 381869: Complete each multiplication sentence. 3\4 x _____ = 24 Click here to see answer by ccrox(11)

 Question 381952: The problem is an Integer problem and the problem is 2 + -6= do I convert the second number to it's opposite Click here to see answer by mananth(12270)