All Questions ⁺⁰237665 Questions

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424

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geometry

Right triangle ABC has one leg of length 6, one leg of length 8, and a right angle at A. A square has one side on the hypotenuse of triangle ABC and a vertex on each of the two legs of triangle ABC. What is the length of one side of the square? read more ..

Guest May 30, 2020

+2

509

1

+284

Geometry Question

Can someone please help me?

Triangle ABC has altitudes AD, BE, and CF. If AD = 12, BE = 14, and CF is a positive integer, then find the largest possible value of CF
read more ..

Caffeine May 30, 2020

0

662

0

+280

Sanjay attempts a 49-yard field goal in a football game.

Sanjay attempts a 49-yard field goal in a football game. For his attempt to be a success, the football needs to pass through the uprights and over the crossbar that is 10 feet above the ground.
Sanjay kicks the ball from the ground with an initial read more ..

auxiarc May 30, 2020

0

509

1

hard number theory

Find the smallest positive integer n such that both 2n + 1 and 3n + 1 are perfect squares.

Guest May 30, 2020

0

571

1

help

How many subsets of 2 elements can be removed from the set {1,2,3,4,5,6,7,8,9,10,11} such that the mean becomes 6?

Guest May 30, 2020

0

436

1

please help

If a number x is 10% of y, what percent of 5y is 10x?

Guest May 30, 2020

0

1227

2

+1072

Help Please!!!

1. In the coordinate plane, let A be a point on the x-axis, and let B be a point on the y-axis, so that AB is tangent to the unit circle. Find the minimum value of AB. read more ..

SpongeBobRules24 May 30, 2020

-1

548

1

+866

Some algebra help

Let $(x) = 2x - 3 and g(f(x)) = 5-4x. Find g(4).

AnimalMaster May 30, 2020

0

479

0

+9

DONT GET PLS HELP

When the fraction

3
_____ read more ..

SmartTech May 30, 2020

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968

1

help

Firefighter Steve was born in 1950. Steve had a grandmother who was born in a year which is the product of two prime numbers, one of which is one less than twice the other. In what year did Steve’s grandmother celebrate her 90th birthday?

Guest May 30, 2020

0

1131

4

+1072

Help Please!!!

1. Let x and y be positive real numbers such that x + y = xy Find the smallest possible value of x + y.

2. For positive real numbers x, y, and z, find the minimum value of read more ..

SpongeBobRules24 May 30, 2020

0

600

1

help

A collection of 20 coins made up of only nickels, dimes and quarters has a total value of $3.35. If the dimes were nickels, the nickels were quarters and the quarters were dimes, the collection of coins would have a total value of $2.75. How many quarters read more ..

Guest May 30, 2020

0

540

1

help!

Determine l + n in the figure.

* All lines are straight
* Figure not drawn to scale read more ..

Guest May 30, 2020

-2

697

3

+223

Help?

In rectangle is on side

Help? read more ..

Noori May 30, 2020

0

568

1

geometry

A circle touches two perpendicular lines with point T being 8 and 9 units form the two lines as shown in the figure. Find the radius of the circle.

read more ..

Guest May 30, 2020

0

676

1

please help

How many different 7 digit palindromes are there?

Guest May 30, 2020

-3

627

2

+171

halp plzz

BillyBobJoeJr May 30, 2020

-4

564

1

+171

ok help plz

BillyBobJoeJr May 30, 2020

-1

615

1

+116

Matrices Solving

Let . Find all values of such that , where is the identity matrix.

somebody May 30, 2020

-3

624

3

+116

Matrices

Hey guys! I need help this this question:

Given that , find . I tried constructing a matrix with a determinant of 24 but couldn't find one. Does anyone have ideas?

somebody May 30, 2020

0

579

2

Modular Math

There are two 7-digit integers that satisfy the following congruences: N mod 3=1, N mod 5 =2, N mod 7 =3, N mod 11 =4, N mod 13 =5, N mod 17 =6 and N mod 19 =7. What are the two 7-digit integers?
Thanks for any help.

Guest May 30, 2020

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