All Questions

308

help algebra

If m and n are odd integers, how many terms in the expansion of $(m+n)^8$ are odd?

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Guest Oct 30, 2021

224

Algebra

Let a and b be the solutions to 5x^2 - 11x + 4 = 0. Find 1/(a + 1) + 1/(b + 1).

Guest Oct 30, 2021

172

help with polynomial

Find a monic quartic polynomial f(x) with rational coefficients whose roots include x=5-i\sqrt[4]{3} . Give your answer in expanded form.

Guest Oct 30, 2021

189

Please Help

Ava’s father George picks her up at the train station when she comes home from school, then George drives Ava home. They always return home at 5:00 pm. One day Ava left school early and got to the train station an hour early. She then started walking home. read more ..

Guest Oct 30, 2021

Oct 29, 2021

304

cubes

i tried to solve this but can't so here's the question:

Eight cubes form the figure shown.
read more ..

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Guest Oct 29, 2021

303

help plz

What is the coefficient of x^3 in the expansion of (x + 2)^7?

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Guest Oct 29, 2021

331

Exponents

Find the value of y such that 9^y = 3^5/27^3.

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Guest Oct 29, 2021

287

help melody

What is the sum of the possible units digits of a perfect square written in base 6?

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Guest Oct 29, 2021

285

Quadratics

Let u and v be the solutions to 3x^2 + 5x + 7 = 2x^2 - 8x + 1. Find u/v + v/u.

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Guest Oct 29, 2021

492

If a sample of a certain solution is determined to have a [H3O+] concentration of 5.22 × 10^-5 moles/liter, what is its pH? Round off your a

If a sample of a certain solution is determined to have a [H3O+] concentration of 5.22 × 10^-5 moles/liter, what is its pH? Round off your answer to one decimal place.

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Guest Oct 29, 2021

560

Harvey the wonder hamster can run 3\dfrac16 \text{ km}361 km3, start fraction, 1, divided by, 6, end fraction, start text, space, k, m, end

Harvey the wonder hamster can run 3\dfrac16 \text{ km}361 km3, start fraction, 1, divided by, 6, end fraction, start text, space, k, m, end text in \dfrac1441start fraction, 1, divided by, 4, end fraction hour. Harvey runs at read more ..

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Guest Oct 29, 2021

299

Geometry

Circles A, B, and C are externally tangent to each other. If AB = 14, BC = 18, and AC = 18, then find the radii of each of the circles.

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Guest Oct 29, 2021

288

pre-calc

In right triangle BCD with angle D = 90 , we have BC = 8 and BD = 4. Find sin B.

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Guest Oct 29, 2021

304

HELP CPHILL

On planet Fleeg, time is measured in finutes and feconds. A finute is equal to 2.5 earth minutes, and a fecond is equal to 3 4 of an earth second. How many feconds are in a finute?

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Guest Oct 29, 2021

224

HELP!!

Ms. Ramirez gave a test in her math class and created the histogram shown to display her students’ scores. If no two students scored the same number of points on this test, what is the least possible value of the median score?

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Guest Oct 29, 2021

341

what is 3.5x - 5.7 = 2.5x + 4.1

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Guest Oct 29, 2021

247

Hyperbola Calc

BOLOM is a long range hyperbolic navigation system. Suppose two BOLOM transmitters are located at the coordinates (-200,0) and (200,0) , where unit distance on the coordinate plane is measured in miles. A receiver is located somewhere in the first read more ..

yogithecat Oct 29, 2021

174

Euclidean Algorithm

Given that a is a multiple of 456, find the greatest common divisor of 3a^3 + a^2 + 4a + 456 and a.

Guest Oct 29, 2021

299

Algebra

Find the number of real solution to x = 1 - x + x^2 - x^3 + x^4.

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Guest Oct 29, 2021

198

Algebra

Let a be a positive real number such that all the roots of x^3 + ax^2 + ax - 2a - 1 = 0 are real. Find the smallest possible value of a.

Guest Oct 29, 2021

437

In the diagram below, M is the midpoint of AB. Find MN.

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Guest Oct 29, 2021

310

System

Real numbers x and y satisfy
x + xy = 250y
x - xy = -240y
read more ..

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Guest Oct 29, 2021

264

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message
Quincy drinks 70 ounces of water per day. How many ounces of water will she drink in one year

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Guest Oct 29, 2021

323

Algebra

Find a monic quartic polynomial with rational coefficients whose roots include x = 1 - sqrt(2) and x = 2 + sqrt(7).

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Guest Oct 29, 2021

323

Geometry

Point D is the midpoint of median AM of triangle ABC. Point E is the midpoint of AB, and point T is the intersection of BD and ME. Find the area of triangle DME if $[ABC] = 50$.

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Guest Oct 29, 2021

All Questions ⁺⁰230935 Questions

help algebra

Algebra

help with polynomial

Please Help

cubes

help plz

Exponents

help melody

Quadratics

If a sample of a certain solution is determined to have a [H3O+] concentration of 5.22 × 10^-5 moles/liter, what is its pH? Round off your a

Harvey the wonder hamster can run 3\dfrac16 \text{ km}361 km3, start fraction, 1, divided by, 6, end fraction, start text, space, k, m, end

Geometry

pre-calc

HELP CPHILL

HELP!!

what is 3.5x - 5.7 = 2.5x + 4.1

Hyperbola Calc

Euclidean Algorithm

Algebra

Algebra

In the diagram below, M is the midpoint of AB. Find MN.

System

0/1k

Algebra

Geometry

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