All Questions

255

Trapezoid

The lengths of the bases of an isosceles trapezoid are 40 and 22, and the length of the altitude is 7. Find the length of a leg of the trapezoid.

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Guest Sep 1, 2021

441

Probability

You are dealt 2 cards at random from a standard 52 card deck. What is the probability of getting a blackjack?

Note: A blackjack is a combination of an Ace and a ten point card. All face cards are worth ten points, and read more ..

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Guest Sep 1, 2021

286

Number Theory

The sum of two positive numbers a and b is 629 and their greatest common divisor is 37. What are all possible values of a and b?

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Guest Sep 1, 2021

402

+130

something

In quadrilateral PQRS, sides PS and QR have equal length and sides PQ and RS are parallel to each other. Point X is the intersection of the diagonals PR and QS. Which of the following conclusions must be true?
A)
B)
C) read more ..

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mintjellyxd Sep 1, 2021

360

something i just dont get

In quadrilateral ABCD, the sides AB and DC have equal length and are parallel to each other. Point P is the intersection of the diagonals AC and BD. How many pairs of congruent triangles are in the figure? (The figure below is not drawn to scale.) read more ..

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Guest Sep 1, 2021

383

help pls

In the figure above, line PS bisects angle QPR. We can ensure that by just adding one more condition. Which read more ..

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Guest Sep 1, 2021

386

+130

geometry

Find x in the diagram below

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mintjellyxd Sep 1, 2021

297

Counting

How many (positive) seven digit integers are there that have a digit sum equal to 10 and that are formed using only the digits 1, 2 and 3?

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Guest Sep 1, 2021

342

series

The terms x, x+2, x+4, . . . , x+2n form an arithmetic sequence, with x an integer. If each term of the sequence is cubed, the sum of the cubes is -1224. What is the value of n if n > 3?

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Guest Sep 1, 2021

308

HELP PLZ

Find the value of B - A if the graph of Ax + By = 3 passes through the point (-7,2), and is parallel to the graph of x + 3y = -5.

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Guest Sep 1, 2021

436

+491

I need some help please

I dont even know how this is possible to solve. please help!

Elijah Sep 1, 2021

279

help counting

Some 5-digit number is either any number with at least two odd digits, or it is an odd number. How many such numbers are there?

Guest Sep 1, 2021

281

Coordinates

The perpendicular bisector of the line segment connecting the points (-3,8) and (-5,-4) has an equation of the form y=mx+b. Find m+b.

Guest Sep 1, 2021

266

how do i find the x intercept, y intercept, and the slope of 2x-3y+9=0

Guest Sep 1, 2021

250

help probability

Teams A and B are playing a series of games. The series is over as soon as a team wins a total of three games. Team A is two times more likely to win a game than Team B. What is the probability that Team A wins the series?

Guest Sep 1, 2021

304

Please help.

Cate's mother is four times as old as Cate is now. In 6 years, Cate's mother will be three times as old a Cate will be then. How old is Cate now (IN YEARS)?

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Guest Sep 1, 2021

483

If a 0.7 kg object hanging from a spring stretches it by 0.25 m, then by how much will the spring be stretched (in m) if a 1.4 kg&

If a 0.7 kg object hanging from a spring stretches it by 0.25 m, then by how much will the spring be stretched (in m) if a 1.4 kg object is suspended from it?

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Guest Sep 1, 2021

320

en fotbollsplan har måtten 112,5x64.karin ska kilppa gräset på planen. Hon går 1,5m per sekund och klipper 1m bredd. hur långt tid tar det

en fotbollsplan har måtten 112,5x64 . karin ska kilppa gräset på planen. Hon går 1,5m per sekund och klipper 1m bredd. hur långt tid tar det för karin ska klippa hela planen

Guest Sep 1, 2021

320

Algebra

Find the value of k if the line y = x + k is tangent to the graph of y = x^2.

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Guest Sep 1, 2021

294

help geometry

In the diagram, BD=5, CE=4, [ABC]=24, and [ADE]=16. Find [ACD]

Guest Sep 1, 2021

488

+151

Help

Joe emptied his wallet at the end of his busy day. He had gone out with his friends and had spent some of the money he had been given for his birthday. When he emptied his wallet he found that all he had left were 2 five cent coins, 1 fifty cent coin, 1 read more ..

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Ajdabegano Sep 1, 2021

415

+140

Algebra Question

Let be integers. For how many ordered triples is

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sherwyo Sep 1, 2021

427

+140

Number Theory Question

The infinite sequence is defined by and for each integer . What is the remainder when is divided by 5.

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sherwyo Sep 1, 2021

488

Help on Math

The senior class GPA is 86, with a standard deviation of 6. Chaska has a GPA of 98. What percentage of seniors have a GPA higher than Chaska’s?

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Guest Sep 1, 2021

All Questions ⁺⁰237665 Questions

Trapezoid

Probability

Number Theory

something

something i just dont get

help pls

geometry

Counting

series

HELP PLZ

I need some help please

help counting

Coordinates

how do i find the x intercept, y intercept, and the slope of 2x-3y+9=0

help probability

Please help.

If a 0.7 kg object hanging from a spring stretches it by 0.25 m, then by how much will the spring be stretched (in m) if a 1.4 kg&

en fotbollsplan har måtten 112,5x64.karin ska kilppa gräset på planen. Hon går 1,5m per sekund och klipper 1m bredd. hur långt tid tar det

Algebra

help geometry

Help

Algebra Question

Number Theory Question

Help on Math

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