All Questions ⁺⁰237699 Questions

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Algebra

Find a monic polynomial of degree 4, in x, with rational coefficients such that sqrt(2) + sqrt(5) is a root of the polynomial.

Guest Jan 18, 2022

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378

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Algebra

What is the ratio of x to y if: (10x - 3y)/(13x - y) = 3/5 ? Express your answer as a common fraction.

Guest Jan 18, 2022

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369

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Algebra

a and b are real numbers and satisfy a*b^2 = 27/5 and a^2*b = 1080. Compute a + 5b.

Guest Jan 18, 2022

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327

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sussy

Guest Jan 18, 2022

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300

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Coordinates

A segment with endpoints at A(2,-2) and B(14,4) is extended through to point C. If BC = AB, what are the coordinates for point C? Express your answer as an ordered pair.

Guest Jan 18, 2022

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317

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Complex Numbers

Find all complex numbers z such that z^2 = .

Guest Jan 18, 2022

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301

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geometry

In triangle ABC, AB = AC = 25 and BC = . Points D, E and F are on sides AB, BC and AC respectively, such that DE and EF are parallel to AC and AB respectively. What is the perimeter of parallelogram ADEF?

read more ..

Guest Jan 18, 2022

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+189

Pls help if possible

Calculate sin([arccos(-1/9)]/2) and put the answer as a fraction.

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ImDecentAtMath Jan 18, 2022

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412

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+189

Idk how to do this

Calculate
Answer in radians.

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ImDecentAtMath Jan 18, 2022

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347

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Radicals

Simplify sqrt{28x} * sqrt{15x} * sqrt{20x}. Express your answer in simplest radical form in terms of x.

Guest Jan 18, 2022

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310

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Probability

A multiple-choice test has 6 questions. Each question has 5 choices and only one of which is correct. If a student guesses the answer for each question find the probability that the students gets exactly four questions correct.

Guest Jan 18, 2022

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237

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Function

Suppose the domain of f is (-1,1). Define the function l by l(x) = f((x - 1)/(x - 3)). What is the domain of l?

Guest Jan 18, 2022

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346

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I'm confused

If sin(x)=5/13 what is sin(2x)?

Guest Jan 18, 2022

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360

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Yenifer

An item is regularly priced at $70. It is now priced at a discount of 70% off the regular price. What is the price now?

Guest Jan 18, 2022

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292

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Counting

How many ways are there to put 4 distinguishable balls into distinguishable boxes?

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291

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Pls hellp im begging

Calculate

Answer in radians.

Guest Jan 18, 2022

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330

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Pls help, I'm confused

Let be an angle between and such that . Assume that . Then if the terminal point of is then what is ?

Guest Jan 18, 2022

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350

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Algebra

Find all solutions to the equation x^2 - 7x = 38. If you find more than one, then list the values separated by commas.

Guest Jan 18, 2022

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380

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help algebra

Find all solutions to the equation 6x^2 - 31x + 46 = 0. If you find more than one, then list the values separated by commas. If the solutions are not real, then they should be written in a + bi form.

Guest Jan 18, 2022

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311

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help algebra

The quadratic equation 2x^2 + bx + 82 has a double root. Find all possible values of b.

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322

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help algebra

Let r and s be the roots of x^2 - 6x - 2 = 0. Find (r - s)^2.

Guest Jan 18, 2022

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382

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Inequality

I own a large truck, and my neighbor owns four small trucks that are all identical. My truck can carry a load of at least 800 pounds more than each of her trucks, but no more than of the total load her four trucks combined can carry. Based on these read more ..

Guest Jan 18, 2022

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320

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geometry

Two rectangles overlap, as shown below. Find the area of the overlapping region (which is shaded)

Guest Jan 18, 2022

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262

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math creative

If xy=11 and x-y=5 then
what is the value of x2-y2 ? what is the value of x4-y4 ? Show that xy + 31 = x2-y2

Guest Jan 18, 2022

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366

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PLSSSSS In music, a dotted note has the duration of the original note. What fraction of a whole note is a dotted eighth note? Note: An

PLSSSSS In music, a dotted note has the duration of the original note. What fraction of a whole note is a dotted eighth note? Note: An eighth note is one-eighth of a whole note (as the name suggests).

Guest Jan 18, 2022

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