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 Test Calculators and Practice Answers archive Word Problems Lessons In Depth

 Question 389721: Find the x and y coordinates of the pints on x^2 +y^2=16 at which the tangent line are: a)horizontal and b)have a slope of 1 Click here to see answer by ewatrrr(10682)

 Question 389719: if x^2 -y^2=5 what is d^2y/dx^2 at the point (3,2) Click here to see answer by richard1234(5390)

 Question 389780: How many CDs were sold on Monday if 40 were sold on monday and Tuesday together and on monday they sold 10 more than on Tuesday? Click here to see answer by rfer(12657)

 Question 389808: Which of the following is a factor of the polynomial x2 - x - 20? Click here to see answer by stanbon(57307)

 Question 389807: What is the sulm of the polynomials 3a2b + 2a2b2 and -ab2 + a2b2 Click here to see answer by stanbon(57307)

 Question 389835: w varies jointly as x and y and inversely as z. if w = 112 when x = 4 and y = 8 and z = 0.2, find w when x = 8, y = 10 and z = 4 (show your solution) Click here to see answer by mananth(12270)

 Question 389821: find the coordinate of the image of point (1,-3)translated down 2 units and left 3 units. a)(-1,-6) b)(4,-1) c)(-1-1) d) (-2,-5) I think it is (-2,-5) but want to be sure. What is the measure of the angle of rotation with respect to two lines that intersect to form a 45 degrees angle 180 90 45 22.5 i think it is 90. please explain both answers. thank you so very much Click here to see answer by ewatrrr(10682)

 Question 389830: 3 3x+6 9/2 + 6 ------------- + ------------ =. ----------- x2-10x+25 2x+ 10 3x + 15 Click here to see answer by Alan3354(30993)

 Question 389836: How can you determine an expression that is completely factored? Click here to see answer by Alan3354(30993)

 Question 389891: Find the equation of the tangent line to the curve x^2 +2xy-y^2 +x=2 at (1,2) Click here to see answer by stanbon(57307)

 Question 389985: Graph the equation 6x + 6y = 30 by finding the intercepts. Click here to see answer by ewatrrr(10682)

 Question 390057: Find an equation for the line: through (-4,6) and parallel to y= -3x + 4 Click here to see answer by robertb(4012)

 Question 390068: Find an equation for the line: through( -7, -4) and vertical. Click here to see answer by robertb(4012)

 Question 390067: Find an equation for the line: through( -7, -4) and vertical. Click here to see answer by ewatrrr(10682)

 Question 390076: Write an equation for the vertical translation. y= - 2/9|x| - 7; 2 units down Click here to see answer by robertb(4012)

 Question 390078: How do you solve problems like these 4x+y=-5. what is y? Click here to see answer by MathLover1(6627)
 Question 390078: How do you solve problems like these 4x+y=-5. what is y? Click here to see answer by unlockmath(1599)
 Question 390078: How do you solve problems like these 4x+y=-5. what is y? Click here to see answer by stanbon(57307)
 Question 390078: How do you solve problems like these 4x+y=-5. what is y? Click here to see answer by ewatrrr(10682)

 Question 390087: (x+4)(x-5) Multiply the factors and simplify the expression what is the product of the two factors? Click here to see answer by unlockmath(1599)

 Question 390080: (x + 4)(x - 5) If you were to multiply the two factors in the expression which operation would you perform first Click here to see answer by ewatrrr(10682)

 Question 390109: What are the two factors of the following equation..... X^2 + 13x + 36 Click here to see answer by richard1234(5390)

 Question 390110: Solve the following inequality 4x + 2 < 8x - 2 Click here to see answer by mananth(12270)

 Question 390124: 12x2-6x2+2x ------------------ 2x The numbers after the x are exponents nd the dashes line just shows that it is division. Thank you for the help. Click here to see answer by rfer(12657)

 Question 390127: The slope of a line is negative if..... A) the line is horizantle. B) the line rises as it moves left and right. C) the line falls left and right. D) none of the above Click here to see answer by rfer(12657)

 Question 390298: This is basic math I blanked out on the question is: there are markers every 1000 feet alongside the road. Sonya passes #8 at 3:10 pm and #20 at 3:14pm. Find Sonya's average rate of speed per minute. Thank You , Blanked out in middle school Click here to see answer by stanbon(57307)

 Question 390235: The ratio of the price of tickets for adults to children is 5:2. A child's ticket cost \$6. What is the price of an adult's ticket? Click here to see answer by edjones(7569)

 Question 390334: How do you do conversions I have a big mid term test coming up Wednesday and it's half my grade and I don't understand how to do conversions like 7km to something m hellp Click here to see answer by richard1234(5390)

 Question 390386: • 3√x ∙ 3√x = x. Explain why. Click here to see answer by Alan3354(30993)
 Question 390386: • 3√x ∙ 3√x = x. Explain why. Click here to see answer by richard1234(5390)

 Question 390430: Which equation has a slope of -3 ? A. 2y+6x=1 B. 2y-6x=1 C. 2x+6y=-1 D. 6x-2y=1 Click here to see answer by stanbon(57307)

 Question 390474: Solve by elimination: 0 =-15 + 2 x-y 0 =5 x + 5 y Click here to see answer by stanbon(57307)