All Questions

405

Subset counting

How many subsets of the set $\{1,2,3,4, 5, 6, 7, 8, 9, 10\}$ contain the number 5, 6, and 7?

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Guest Nov 25, 2021

447

Geometry

In triangle ABC, angle C is a right angle. Point M is the midpoint of AB, point N is the midpoint of AC, and point O is the midpoint of AM. The perimeter of triangle ABC is 112 and ON = 15. What is the area of triangle ABC?

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Guest Nov 25, 2021

259

Complex Nubmers

Let u and w be complex numbers such that:
|u| = 5, |w| = 3, |u+w| = 7
Calculate |u+2w| with proof.

Guest Nov 25, 2021

460

+53

HELP!! URGENT!!

Find the units digit of $16^{17} \times 17^{18} \times 18^{19}$.

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arturfetahu Nov 25, 2021

252

Parabola

The graph of y = f(x) is a parabola whose vertex is at (1,-2). The graph of y = f(x + 4) - 3 is also a parabola. Where is the vertex of the graph of y = f(x + 4) - 3?

Guest Nov 25, 2021

261

Quadratic

For what values of j does the equation (2x+7)(x-5) = -43 + jx + 8x + 11 have exactly one real solution?

Guest Nov 25, 2021

308

Octagon

In the regular octagon below, find x.

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Guest Nov 25, 2021

+13

393

+483

help quickly

Suppose that are positive integers satisfying , and such that the product of all three numbers is twice their sum. What is the sum of all possible values of ?

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abcdefghijklmnopqrst Nov 25, 2021

373

Probability

Wu rolls two fair, six-sided dice. You are not told what the rolls were, but you are told that the sum of the two rolls is a prime. What is the probability that the sum of the two rolls is $2$?

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Guest Nov 25, 2021

261

Probability

A stick has a length of 5 units. The stick is then broken at two points, chosen at random. What is the probability that all three resulting pieces are shorter than $3$ units?

Guest Nov 25, 2021

379

Graphing question

The graph of y = f(x) has the line x = 5 as an axis of symmetry. The graph also passes through the point (7,-8). Find another point that must lie on the graph of y = f(x).

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Guest Nov 25, 2021

317

Geometry

In triangle ABC, M is the midpoint of AB. Let D be the point on BC such that AD bisects angle BAC, and let the perpendicular bisector of AB intersect AD at E. If AB = 44, AC = 38, and ME = 18, then find the area of triangle ACD.

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Guest Nov 25, 2021

374

Geometry

Two long strips of paper are each 2 inches wide, and they overlap so that the angle between the strips is 45 degrees. What is the number of square inches in the area of the parallelogram formed by the overlap?

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Guest Nov 25, 2021

370

Counting

How many 3-digit numbers contain exactly one 1 and exactly one 2?

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Guest Nov 25, 2021

267

Help counting

How many continuous paths from A to B, along segments of the figure, do not revisit any of the six labeled points?

Guest Nov 25, 2021

323

Học sinh lớp 6A xếp thành 4; 5; 8 hàng đều vừa đủ hàng. Hỏi số HS lớp 6A là bao nhiêu? Biết rằng số HS lớp 6A nhỏ hơn 45.

Học sinh lớp 6A xếp thành 4; 5; 8 hàng đều vừa đủ hàng. Hỏi số HS lớp 6A là bao nhiêu? Biết rằng số HS lớp 6A nhỏ hơn 45.

Students in grade 6A are grouped into 4; 5; 8 rows are just enough. What is the number of students read more ..

Guest Nov 25, 2021

413

e^y sinx=x+xy

find dy/dx e^ysinx=x+xy

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Guest Nov 25, 2021

307

Coordinates

If a is the x-intercept, b is the y-intercept, and m is the slope of the line with equation x/4 + y/18 = 1, then what is the value of a + b + m?

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Guest Nov 25, 2021

400

Coordinates

If x >= 0 and y >= 0, how many lattice points does the line y = -2x + 28 pass through? (A lattice point is a point with integer coordinates.)

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Guest Nov 25, 2021

393

Algebra problem

What real value of produces the smallest value of the quadratic t^2 - 9t - 36 + 3t^2 - t + 10?

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Guest Nov 25, 2021

269

Trig question

In right triangle ABC, with B = 90 degrees, we have sin A = 2 cos A + tan A. What is tan A?

Guest Nov 25, 2021

432

+99

Math Help Pls Polynomial Multiplication

Can someone please help me with this problem

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Jxalskdfjarkfhqwio3r Nov 25, 2021

449

+99

MATH Help Please Cleaver Algebraic Manipulations

Can someone please help me with this problem?
Help is greatly appreciated.
Find given that and

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Jxalskdfjarkfhqwio3r Nov 25, 2021

298

Functions

If g(x) = sqrt((x + 3)/4), for what value of x will g(2x) = 2g(x)? Express your answer in simplest form.

Guest Nov 25, 2021

265

Algebra question

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 Nov 25, 2021

All Questions ⁺⁰237665 Questions

Subset counting

Geometry

Complex Nubmers

HELP!! URGENT!!

Parabola

Quadratic

Octagon

help quickly

Probability

Probability

Graphing question

Geometry

Geometry

Counting

Help counting

Học sinh lớp 6A xếp thành 4; 5; 8 hàng đều vừa đủ hàng. Hỏi số HS lớp 6A là bao nhiêu? Biết rằng số HS lớp 6A nhỏ hơn 45.

e^y sinx=x+xy

Coordinates

Coordinates

Algebra problem

Trig question

Math Help Pls Polynomial Multiplication

MATH Help Please Cleaver Algebraic Manipulations

Functions

Algebra question

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