All Questions ⁺⁰238471 Questions

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A trapezoid has an area of 145.5 square miles. One base is 19.1 miles long. The height measures 10 miles. What is the length of the other base?
miles

Guest Dec 5, 2019

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688

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what is the square root of 3456

Guest Dec 5, 2019

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506

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Suppose m and n are the roots of x^3 - mx^2 + nx - 1 = 0. Find the sum of the roots.

Guest Dec 5, 2019

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624

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(a) The line x + y = 3 intersects the parabola y = x^2 + 1 at points A and B. Determine the coordinates of A and B.

(b) If C is the vertex of the given parabola, determine the area of triangle ABC.

Guest Dec 5, 2019

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641

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solve linear systems by adding or subtracting

11y-3x=8
-3x=-16y+33

Guest Dec 5, 2019

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624

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One of the roots of x^3 - 5x^2 + 5x - 1 = 0 is 2 - sqrt(3). What are the other two roots?

Guest Dec 5, 2019

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765

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One of the roots of x^3 - 5x^2 + 5x - 1 = 0 is 2 - sqrt(3). What are the other two roots?

Guest Dec 5, 2019

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542

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logic problem

Inside each shape are cyan and yellow balls with a corresponding number. Use the clues to determine the missing number marked with "?" The formula is the same for all shapes. Express your answer as an integer whole number.
read more ..

Guest Dec 5, 2019

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495

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Find all integers z such that z^2 + 13z + 3 is a perfect square.

Guest Dec 5, 2019

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615

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Let m and n be the roots of 7x^2 + 9x + 21 = 0. Find (m + 7)(n + 7).

Guest Dec 5, 2019

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559

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Find the number of integers n, 1 < n < 2014, such that 8n/(9999 - n) is also an integer.

Guest Dec 5, 2019

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709

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Solve 3*sin(x)^2 = 8*cos(x).

Guest Dec 5, 2019

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492

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The angle t satisfies cos(t) = tan(t). If sin(t) = n*sin(18 degrees), find n.

Guest Dec 5, 2019

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495

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Find the smallest angle x, in degrees, that satisfies 81^(sin(x)^2) + 81^(cos(x)^2) = 30.

Guest Dec 5, 2019

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537

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Compute tan(6) tan(42) tan(66) tan(78). (All angles are in degrees.) Show your steps!

Guest Dec 5, 2019

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531

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Assuming that the pieces follow a rectangular grid pattern with rows and columns, find the least number of pieces a puzzle can have if exactly 1/5 of its pieces are edge pieces (pieces with at least one edge).

read more ..

Guest Dec 5, 2019

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654

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Person A works twice as fast as person B. Person B can complete a piece of work independently in 12 days. Find the number of days taken by person A and B together to finish the work.

ElectricPavlov ●

Guest Dec 5, 2019

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476

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If a + b + c = 0 and a^2 + b^2 + c^2 = 10, find a^4 + b^4 + c^4.

Guest Dec 5, 2019

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643

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A box contains red pens and blue pens in the ratio 4:3. When we remove a red pen and two blue pens, the ratio becomes 3:2. How many red pens are now in the box?

Guest Dec 5, 2019

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482

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You have a large supply of red, blue, and green balls. How many ways can 12 balls be selected?

Guest Dec 5, 2019

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548

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Solve the puzzle ABCD * 4 = DCBA, where each letter stands for a digit.

Guest Dec 5, 2019

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983

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+1983

The Dunking Principle

The Dunking Principle
Mr. Crow, the principal at Arizona State University agreed to participate in a dunking booth during the homecoming fair. Here’s how the booth worked:
People who purchased tickets would push a button. The read more ..

macabresubwoofer Dec 5, 2019

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532

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Help

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