All Questions

338

Domain

What is the smallest real number in the domain of the function g(x) = sqrt((x - 3)^2 - (x - 15)^2)?

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Guest Jun 24, 2022

347

Algebra

Given $3x+\dfrac{2}{x}-4=2(x+2)-\left(9-\dfrac{1}{x}\right)$ what is $\dfrac{x^2+1}{x}?$

BuilderBoi ●

Guest Jun 24, 2022

331

bases

What is the average of all positive integers that have four digits when written in base 3, but two digits when written in base 5? Write your answer in base 10.

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Guest Jun 24, 2022

256

Complex Numbers

There exists a complex number of the form z = x + yi, where x and y are positive integers, such that
z^3 + 14 = -74 + ci,
for some integer c. Find z.

Guest Jun 24, 2022

354

Polygon

The number of diagonals in a certain regular polygon is equal to two times the number of sides. How many sides does this polygon have?

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Guest Jun 24, 2022

348

Polygon

In a certain regular polygon, the measure of each interior angle is nine times the measure of each exterior angle. Find the number of sides in this regular polygon.

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Guest Jun 24, 2022

356

+252

Write sqrt(-16+31i) as a complex number. Can you give me some hints, or if you give me the answer, please tell me the steps.

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Blizzardshine Jun 24, 2022

358

Parabolas

Find the equation of the line that is tangent to both of the parabolas y^2 = 4x and x^2 = -20y. Enter your answer in the form y = mx + b.

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Guest Jun 24, 2022

357

Algebra

Find all values of a that satisfy the equation a/3 + 1 = a + 3.

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Guest Jun 24, 2022

362

Inequality

If -5 <= a <= -1 and 1 <= b <= 3, what is the least possible value of (a + b)/(a - b)? Express your answer as a common fraction.

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Guest Jun 24, 2022

380

+252

Write sqrt(-16+31i) as a complex number.

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Blizzardshine Jun 24, 2022

267

Function

If
f(x) = x^2 - 4 if x > 4
f(x) = x^2 + 4 otherwise
read more ..

Guest Jun 24, 2022

273

math

x+10>30

Guest Jun 24, 2022

301

polynomial

Given that the polynomial x^2-kx+18 has only positive integer roots, find the average of all distinct possibilities for k.

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Guest Jun 24, 2022

344

Coordinates

A triangular region is enclosed by the lines with equations y = 1/2 x + 3, y = -2x + 6 and y = 2. What is the area of the triangular region? Express your answer as a decimal to the nearest hundredth.

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Guest Jun 24, 2022

341

Algebra

Rewrite the expression g^4 + 18g^2 + 24 in the form c(g^2 + p)^2 + q. What is q?

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Guest Jun 24, 2022

351

quadratic

The quadratic x^2-5x+1 can be written in the form (x+b)^2+c, where b and c are constants. What is b+c?

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Guest Jun 24, 2022

343

geometric sequence

Find the 7th term of sqrt(2), sqrt(10), 5*sqrt(2), ...

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Guest Jun 24, 2022

356

Function

Let
p(x) = x - 2y
What is p(p(1,-1),p(-5,-2))?

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Guest Jun 24, 2022

359

trig

In right triangle ABC, we have ∠A = 90◦ , tan B = 5, and BC = 2. What is the length of AB?

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Guest Jun 24, 2022

312

hard algebra

Find the minimum value of 2x^2 + 2xy + y^2 - 2x + 2y + 4 - x^2 + 4x - 11 over all real numbers $x$ and $y$.

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Guest Jun 24, 2022

318

Geometry problem

In triangle XYZ, the bisector of angle YXZ meets YZ at W. If angle X = 60, angle Y = 45, and XW = 24, then find angle XWZ.

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Guest Jun 24, 2022

335

Algebra

The line x = k intersects the graph of the parabola x = -2y^2 - 3y + 5 - y^2 + 6 at exactly one point. What is k?

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Guest Jun 24, 2022

343

help

Five hundred raffle tickets were sold at a fundraiser for $5 each. Eight winning tickets paid as follows: one ticket at $750, two tickets at $250 each, and five tickets at $125 each. The revenue from ticket sales that was not used to pay off the prizes read more ..

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Guest Jun 24, 2022

374

+491

How do I Start A Thread?

Thats my question

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Elijah Jun 24, 2022

All Questions ⁺⁰238459 Questions

Domain

Algebra

bases

Complex Numbers

Polygon

Polygon

Write sqrt(-16+31i) as a complex number. Can you give me some hints, or if you give me the answer, please tell me the steps.

Parabolas

Algebra

Inequality

Write sqrt(-16+31i) as a complex number.

Function

math

polynomial

Coordinates

Algebra

quadratic

geometric sequence

Function

trig

hard algebra

Geometry problem

Algebra

help

How do I Start A Thread?

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