All Questions ⁺⁰237641 Questions

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594

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+407

Need help please ASAP

What is the average of all positive integers that have four digits when written in base 3, but two digits when written in base 6? Write your answer in base 10.

MooMooooMooM ●

ss333 Dec 30, 2020

0

537

1

i need help on this problem

I'm really stuck on this:

Triangle $ABC$ is isosceles with $AB = AC$, and is inscribed in a circle. If $AP = 11$ and $PQ = 5$, then what is $AB^2$?
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Guest Dec 30, 2020

Dec 29, 2020

+1

812

3

please help

Every brick in this pyramid contains a number that is the sum of the two numbers in the two bricks below it. What is the value of B?

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Guest Dec 29, 2020

+1

691

5

right triangle

In the right triangle, a height is drawn to the hypotenuse. Find x+y+z.

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Guest Dec 29, 2020

0

510

2

quadratic solutions

Find all values of x such that 2x^2 + 9x - 6 = 0. If you find more than one value, then list your solutions in increasing order, separated by commas.

cryptoaops ●●

Guest Dec 29, 2020

0

489

1

graphing question

Consider the set of all points (x,y) in the coordinate plane for which one of the coordinates is the square of the other. If we were to plot all such points, into how many regions would the resulting graph split up the plane?

Guest Dec 29, 2020

0

524

1

algebra

The difference between two numbers is 9, and the sum of the squares of each number is 158. What is the value of the product of the two numbers?

Guest Dec 29, 2020

+7

633

1

+122

Search Before Posting A New Question...

Please search before you post a new question. I have found many problems which are being repeated. If you first use the search fuction, and then ask, then people can save time. The search bar is at the top right of your screen. Look at the read more ..

cryptoaops Dec 29, 2020

0

590

2

help with geometry

$ABC$ is an equilateral triangle such that vertices $B,C$ lie on two parallel lines at a distance of 6 units. $A$ lies between the parallel lines at a distance 4 units from one of them. Find the side length of the equilateral triangle.
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Guest Dec 29, 2020

+1

530

2

+479

realy need halp

Scientists tag 100 salmons in a river. Later, they caught 50 salmons. Of these, 2 have tags. Estimate how many salmons are in the river.

tysm for any help

HelpBot Dec 29, 2020

0

628

3

minimum value

Find the minmum value of x^2+2xy+2y^2+4y+7 over all real numbers x and y.

Guest Dec 29, 2020

+2

592

5

+82

HALP

What is the largest possible median for the five number set $\{x, 2x, 3, 2, 5\}$ if $x$ can be any integer?

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Leafie Dec 29, 2020

0

508

2

geometry

The diagram shows 3 identical regular hexagons with side length .7. If O_{1}, O_{2} O_{3} are their respective centers, what is the area of △O1O2O3?

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Guest Dec 29, 2020

0

402

1

quadratic equation?

Find all numbers such that the square of the number is 48 more than triple the number. If you find more than one, then list all the numbers you find in increasing order, separated by commas.

Guest Dec 29, 2020

0

373

1

help plz

If a^3 + b^3 = 10 and a + b = 2, then find ab.

Guest Dec 29, 2020

0

546

3

geometry

The diagram above shows a regular hexagon H3 with area H which has six right triangles inscribed in it. Let the area of the shaded region be S, then what is the ratio H:S?

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cryptoaops ●●●

Guest Dec 29, 2020

-1

1126

3

HELP PLZ

A triangle abc with three different side lengths had longest side ac and shortest ab. if perimeter of abc is 384 units, what is greatest possible difference ac-ab? PLS HELP I dont know HOW TO START

Guest Dec 29, 2020

0

545

2

algebra question

Solve for x: sqrt(x + 141) - sqrt(5x + 85) = 2.

Guest Dec 29, 2020

0

656

2

Ellipses

An equilateral triangle $PQR$ is inscribed in the ellipse $\frac{x^2}{a^2} + \frac{y^2}{b^2} = 1,$ so that $Q$ is at $(0,b),$ and $\overline{PR}$ is parallel to the $x$-axis, as shown below. Also, foci $F_1$ and $F_2$ lie on sides $\overline{QR}$ and $\overline{PQ},$ read more ..

Guest Dec 29, 2020

0

420

1

pythagoras

In a certain right triangle, the hypotenuse equals (x+z) while the other two sides are (x+y) and (y+z) for positive integers x, y, z. If y+4=z and z>x , then compute z/x.

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Guest Dec 29, 2020

0

503

1

function problem

Andrew has a favorite function \(A(x)=px+q^x\) such that \(A(1)=4\) and \(4A(2)=37\), find the maximum value of \(p-q.\)

Guest Dec 29, 2020

0

540

1

coordinate geometry

The points (3, 7), (6, 2) and (2,k) are the vertices of a triangle. For how many real values of k is the triangle a right triangle?

Guest Dec 29, 2020

0

381

1

algebra

Find all values of x such that x^2 - 5x + 6 = 0. If you find more than one value, then list your solutions in increasing order, separated by commas.

Guest Dec 29, 2020

0

414

2

8^x+10=32^

8^x+10=32^

plz help and hurry

Guest Dec 29, 2020

0

488

1

pythagoras

Stacey is standing in a field. She walks 11 meters west, 38 meters north, 7 meters west and finally 22 meters south. How many meters is she from her starting point?

Guest Dec 29, 2020

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