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 Test Calculators and Practice Answers archive Word Problems Lessons In Depth

 Question 62353: Help me slove..." The diagonals of a parallelogram bisect each other." Click here to see answer by bryanpark428(4)

 Question 62348: Please help! Problem: "Prove that the figure formed by connecting the midpoints of the sides of any quadrilateral is a parallelogram. Hint: a line segment connecting the midpoints of 2 sides of a triangle is parallel to the 3rd side." Click here to see answer by venugopalramana(3286)

 Question 62630: what persent of 5.4is 1.2? what % of 20is 3/5? Meat totaling 125grms contains 25 grms protein and 6 grams fat.what % protein and % fat? Click here to see answer by checkley71(8403)

 Question 63123: Hello i would like to ask a question about the fundamental theorem of Algebra my homework states to find a polynomial equation having the given roots. if i have the roots 3,-1,2 how do i get to the equation? any help would be great. Thanks! Click here to see answer by Nate(3500)

 Question 63382: You are confronted with the following formula: A * [(B + C)(D - E) - F(G*H) ] / J = 10 Knowing that each variable is a unique, single-digit, nonzero number, and that C - B = 1, and H - G = 3, what is the number ABCDEFGHJ, where each letter is a digit? For example, if A = 4, B = 2, and C = 7, ABC would equal 427. Click here to see answer by 303795(595)

 Question 63934: An object is moving in a straight line from an intial starting point. Its distance f(x) from starting point at time x is given bt f(x)= f(x)=2x4 + 3x3 - 1x2 + 3x - 1 the velocity of the object is given by f(x) and the acceleration of the object is given by f(x) A) what is the distance from the starting point when x = 10.0? B) what is the velocity of the object when x=4.0? C) what is the acceleration of the object when x = 11.6?? Click here to see answer by stanbon(57203)

 Question 63932: determine the critical numbers and the critical points for each of the following functions:show all work A)f(x)= x3 + 3x2 -33x -35 B) g(x)=x3 - 36x C) h(x)= x3 -3x2 -40x Click here to see answer by funmath(2925)

 Question 63931: calculate the first derivatives f(x) for each of the following: show all work A)f(x)= 2/3x3/4 + 3/4x2/3+ 5/6x2/3 B) f(x)= 2/5x3/2 + 5/6x3/4 + 5/6x3/2 C) f(x)= 3/4x2/3 +5/6x3/2 + 3/4x3/2 Click here to see answer by algebrapro18(206)
 Question 63931: calculate the first derivatives f(x) for each of the following: show all work A)f(x)= 2/3x3/4 + 3/4x2/3+ 5/6x2/3 B) f(x)= 2/5x3/2 + 5/6x3/4 + 5/6x3/2 C) f(x)= 3/4x2/3 +5/6x3/2 + 3/4x3/2 Click here to see answer by funmath(2925)

 Question 63935: sketchthe feasible region(in Quadrant 1 only) for the following system of linear inequalities. show all work x - 5y < 0 8x - 15y < 40 3x + 4y < 92 -4x + 9y < 78 x > 0 and y > 0 Click here to see answer by stanbon(57203)

 Question 64288: f(x)=(x+1)^3(2x+3)(2-x)^2 determine the degree of f(x) what are the zeros of f(x) help help Click here to see answer by chitra(359)

 Question 65001: Dear tutor I have this problem about simplfying this equation: __1____ _ ___1___ (x-h)^2 h^2 I also have this problem where I rationalized the numerator ___√(x-4)+2_____ x By the way the the underline means this is a fraction like 1/4. √ represents a square root covering (x-4). Sorry if it looks complicated in a weird way. SIncerely, Kazi Nafis Click here to see answer by stanbon(57203)

 Question 65151: A)Determine the greatest common factor for the following 3 terms: 48x^2y^3z^5, 120x^4y^2z^4, 35x^2y^3z^5 B)Simplify the following expression and rewrite using only positive exponents:(assume that the bases are not zero) (2x^-2y^-2z^5)^3(3x^-2y^-4z2)3 Click here to see answer by stanbon(57203)

 Question 65150: A)write the point-slope equation form of the line which passes through the 2points: (6,0), (11,5) B) Write the point-slope equation form if the line which passes through the 2 points:(4, -8), (9, -5) C) Write the general equation form of the line which passes through the 2 points: (6,0), (10, 5) D) Write the slope-y-intercept equation form of the line which passes through the 2 points: (-5, 1), (0, 4) Click here to see answer by cristiana(10)

 Question 65148: A)mary decides to purchasea house that cost \$262,500.00 the bank requires a 10% downpayment and will provide a 15 year mortgage at annual interest rate of 8.0%. Calculate the mortgage loan amount, the monthly payment required to amortize the loan and the total interest paid(assume all the payments are made).use four 4 deciaml places then round dollar values to tthe nearest penny. Mortgage payments are made each month(monthly) b) create an amortization schedule for the first 4 months of Marys mortgage. C) What is Marys approximate remaining balance after 59 payments have been made? Click here to see answer by stanbon(57203)

 Question 65315: Can two sets of data have a negative correlation? Click here to see answer by stanbon(57203)

 Question 65509: if 2x - 3y = -4 and 3x + 2y = 46 what are the values of x and y ? thankyou Click here to see answer by uma(370)

 Question 65572: thank you for all your help!!! in this problem: ((x-2)^2(x+7))/((x-2)(x+7)(x-8)), i had to simplify the fraction, which i came up with ((x-2))/((x+7)(x-8))....now its asking me to find the common factor and rewrite the expression......i thought the common factor was x+7....but i'm not sure how to rewrite the expression. this is what i came up with: x+7x*-8,7x*-8,7x*-56,....please help me solve this Click here to see answer by checkley71(8403)

 Question 65863: 1. Let In(x^2 - 3y) = x - y - 1define a differentiable function y of x. Find an equation of the line tangent to the graph of the equation at the point (2,1) 2. Water is poured into a conical cup at the rate of 2/3 cubic inches per second. If the cup is 6 inches tall and the top of the cup has a radius of 2 inches, how fast is the water level rising when the water is 4 inches deep? Click here to see answer by Edwin McCravy(8879)

 Question 67028: I have a question. I have to solve for "l" I know that I need to isolate "l" but i do not know what to do from there.' the problem is: W= p+l after that I have no idea what to do! _____ 2 Thanks!!!! Click here to see answer by stanbon(57203)

 Question 68109: ALTOGETHER 568 TICKETS WERE SOLD TO A PLAY. AN ADULT TICKET COSTS \$5.00. A CHILD TICKET COSTS \$2.OO. TICKET SALES WERE \$2345.00. THE THEATER MANAGER EXPECTS TO SELL THE SAME NUMBER OF TICKETS TO THE NEXT PLAY, BUT WANTS TO INCREASE THE TICKET SALES TO \$3554 BY INCREASING THE PRICE OF ADULT TICKETS. FIND THE NEW PRICE OF AN ADULT TICKET. Click here to see answer by ankor@dixie-net.com(15622)

 Question 68110: A RENTAL CAR AGENCY CHARGES \$15.00 PER DAY PLUS 7 CENTS PER MILE TO RENT A CERTAIN CAR. ANOTHER AGENCY CHARGES \$19.00 PER DAY PLUS 5 CENTS PER MILE TO RENT THE SAME CAR. HOW MANY MILES WILL HAVE TO BE DRIVEN FOR THE COST OF A CAR FROM THE FIRST AGENCY TO EQUAL THE COST OF A CAR FROM THE SECOND AGENCY? Click here to see answer by josmiceli(9645)

 Question 68970: I need help in solving these two math problems. Here is the first one. Add. simplify if possible: 9u/u2-49 + u/u-7 This is adding here no division is included. That's just where it is underline top and bottom portions. Next problem is: Subtract. simplify if possible: a/a^2+5a+6 - 2/a^2+3a+2 There is no dividing with this one either. Just the underline top and bottom portions. I will greatly appreciate if you can help with these two problems. Click here to see answer by stanbon(57203)

 Question 69048: A tree casts a shadow 27 meters long. A nearby post that is 5 meters tall casts a shadow 3 meters long. How tall is the tree? Click here to see answer by ptaylor(2048)

 Question 69466: A fraction is equivalent to 2/5. if the numerator of the fraction is decreased by 2 and its denominator is increased by 1, then the resulting fraction is equivalent to 1/4. what is the value of the numerator of the original fraction? (plz. and thank you:) Click here to see answer by stanbon(57203)

 Question 72730: If janet walks 1.5km on Monday night. how many cm is the route on the map on a scale of 1:20,000 in cm Click here to see answer by rmromero(383)

 Question 73030: are the following pairs of lines perpendicular, parallel or neither (hint solve for y) 2y-x=6 2y-x=-4 next one solve for y -4x+y=-5 x+4y=8 Click here to see answer by jim_thompson5910(28476)

 Question 73334: The square of a positive number is seven more than six times the positive number. Find the number. Thans for helping.!!!!!!!!!!!!!! Click here to see answer by checkley75(3666)

 Question 73321: Can somebody help me with this problem please? Simplify complex rational expressions: 2 + 3 __ __ x x^2 ______________________ 3 + 1 - 6 __ __ x x^2 THANK YOU!! Click here to see answer by iepink1987(1)

 Question 73331: A 25-foot ladder leaning against a building touches the wall 18 feet above the ground. How far from the building is the bottom of the ladder? Help please. Thank you Click here to see answer by checkley75(3666)

 Question 73328: Hello again its me Gris, I have a test in 2 days and I need help understanding another problem.If anyone can help thank you: Word problems--- The length of a tennis court is 24 feet more than twice the width. The area is 2106sq. feet. Find the length and the width of the tennis court. Thank you!!!! Click here to see answer by checkley75(3666)