All Questions ⁺⁰238459 Questions

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366

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help algebra

Find the largest value of x for which
x^2 + y^2 = x + y + 4
has a solution, if x and y are real.

Guest Apr 16, 2022

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368

1

help counting

How many even, three-digit positive integers have the property that exactly two of the integer's digits are even?

Guest Apr 16, 2022

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399

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Right triangle

A right triangle has legs of length 6 and b and a hypotenuse of length c. The perimeter of the triangle is 24. Compute c.

Guest Apr 16, 2022

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377

1

help geometry

Triangle ABC has circumcenter O. If AB = 10 and [OAB] = find the circumradius of triangle ABC.

Guest Apr 16, 2022

+1

446

5

+1

I am stuck

Find a polynomial of degree 5 such that both of these properties hold:
f(x) is divisible by x^3 f(x) + 2 is divisible by (x+1)^3. Write your answer in expanded form (that is, do not factor f(x)).

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Neerv Apr 16, 2022

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383

1

plz help

Let
f(x) = -x + 3 if x <= 0
f(x) = 2x - 15 if x > 0
How many solutions does the equation f(f(x)) = 4 have? read more ..

Guest Apr 16, 2022

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402

2

+4

Help would be appreciated!

Let f(x)=(x^2+6x+9)^{50}-4x+3, and r_1,r_2,...r_100 be the roots of f(x).
Compute (r_1+3)^100+(r_2+3)^100+...+(r_100+3)^100

meegmog Apr 16, 2022

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363

1

Algebra

order from least to greatest:
$\sqrt{21}$, $\sqrt[3]{27}$, $-\sqrt{64}$, $\sqrt[4]{25}$, $\sqrt{40}$, $-\sqrt[3]{81}$

Guest Apr 16, 2022

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375

2

Please help if you can

What is the area of the trapezoid shown? Express your answer in simplest exact form.
read more ..

Guest Apr 16, 2022

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372

1

Algebra

The solutions of x(3x-7) = -1+4x may be expressed in the form m + sqrt n / p and m - sqrt n / p , where m, n, and p have a greatest common divisor of 1. Find m+n+p.

Guest Apr 16, 2022

Apr 15, 2022

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389

1

help domain

How many real numbers are not in the domain of the function
f(x) = 1/(x - 64) + 1/(x^2 - 64) + 1/(x^3 - 64) + 1/(x^4 - 64)?

Guest Apr 15, 2022

0

380

2

plz help

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

Guest Apr 15, 2022

0

380

1

+218

MELODY HELP ME!!

A train that is 4 km long is moving along a straight track toward a
tunnel that is 0.5 km long. If the train travels at 150 km/h, then the
number of minutes that the train takes to go through the tunnel is?

MathyGoo13 Apr 15, 2022

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373

1

Geo

Triangle ABC is isosceles with AB = BC. If AB = 20 and [ABC] = , then find the perimeter of triangle ABC.

Guest Apr 15, 2022

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378

2

Geometry

Guest Apr 15, 2022

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387

1

Coordinates

What is the x- coordinate of the point on the x-axis that is equidistant from points A( -2, 0) and B?

Guest Apr 15, 2022

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368

1

Coordinates

Find the equation whose graph is shown below. Write your answer in standard form.
(Standard form is Ax+by=C, where A is positive, and A, B,and C are integers with greatest common divisor 1.)

read more ..

Guest Apr 15, 2022

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372

2

Quadratic

Let r and s be the roots of x^2 - 6x + 2 = 14. Find (r - s)^2.

Guest Apr 15, 2022

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377

1

Quadratic

The quadratic equation 2x^2 + bx + 18 = x^2 + 6x + 4 has a double root. Find all possible values of b.

Guest Apr 15, 2022

0

1

374

1

coordinates

Find the value of c such that the three points (5,5), (3,1), and lie on the same line.
Note: Three points are on the same line if the slope of the line through any two points is always the same.

Guest Apr 15, 2022

0

305

1

Trig problem

What is the largest angle measure in a triangle with sides of lengths 3, 5, and ?

Guest Apr 15, 2022

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370

1

help

What is the smallest distance between the origin and a point on the graph of

Guest Apr 15, 2022

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365

1

Math

Linda, Miah, and Noah are all wearing hats with numbers on them. Each person adds the two numbers on the other two hats, and they come up with the totals 11, 17, and What is the largest number that is on a hat?

Guest Apr 15, 2022

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