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542

help

In a city, 49% of the adults are male. Of the adults, 24% are male and rent action-movie DVDs and 10% are female and rent action-movie DVDs.
If an adult is randomly picked, the probability that the person rents action-movie DVDs, given that the person read more ..

Guest Mar 9, 2020

631

Complex Numbers

Let w be a complex number such that w^3=1 Find all possible values of 1/(1+w) + 1/(1+w^2).

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Guest Mar 9, 2020

Mar 8, 2020

420

please help :)

Find the largest angle of quadrilateral ABCD in degrees, if (angle A)/2 = (angle B)/3 = (angle R)/4.

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Guest Mar 8, 2020

1145

If a person consumes 5.5 × 105 kcal in a day and one barrel of oil can produce 3.7 × 106 kcal, what is the equivalent of energy consumed per

If a person consumes 5.5 × 105 kcal in a day and one barrel of oil can produce 3.7 × 106 kcal, what is the equivalent of energy consumed per year by that person in terms of barrels of oil?

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Guest Mar 8, 2020

605

please help

A certain drug is made rom only two ingredients: compound A and compound B. There are 5 milliliters of compound A used for every 8 milliliters of compound B. If a chemist wants to make 1287 milliliters of the drug, how many milliliters of compound B are read more ..

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Guest Mar 8, 2020

631

+45

Linear Algebra Question

Hi I was wondering if we have 2 for example A,B matrix 2x2 with integers and DetA≠0 , DetB≠0 the 2x2 Matrix will have DetC≠0?
There is a theorem of this and a proof?

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DimitrisThymaras Mar 8, 2020

768

Help plzz

Compute(y+3)(2y+5) if y is a solution to 2y^2+11y+50

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Guest Mar 8, 2020

640

Geometry Question — Triangles

A right triangle has an 80 degree angle. How many times larger is the longer leg compared to the shorter leg? Round your answer to the nearest whole number.

Thanks!

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Guest Mar 8, 2020

1364

+312

GEOMETRY XI

Two circles intersect at A and B. A common external tangent is tangent to the circles at T and U, as shown. Let M be the intersection of line AB and TU. If AB = 9 and BM = 3, find TU.

read more ..

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mathleteig Mar 8, 2020

659

+874

help plz

help plzz

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MathProblemSolver101 Mar 8, 2020

670

+874

Melody regains 1st!

Melody regains first place! It's the battle!

off-topic

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MathProblemSolver101 Mar 8, 2020

957

HALP ASAP

Trapezoid $EFGH$ is inscribed in a circle, with $EF \parallel GH$. If arc $GH$ is $70$ degrees, arc $EH$ is $x^2 - 2x$ degrees, and arc $FG$ is $56 - 3x$ degrees, where $x > 0,$ find arc $EPF$, in degrees.

read more ..

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Guest Mar 8, 2020

693

Halp

Points l and m lie on a circle centered at o and arc lm is 75. The circle passing through points o, l, and m is drawn. Find the measure of arc lom on the smaller circle, in degrees.

read more ..

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Guest Mar 8, 2020

1095

Answer ASAP Please!!!

7b/12=4.2. Which two sides do you times by 12 and divide by 7?

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Guest Mar 8, 2020

659

+874

deleted

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MathProblemSolver101 Mar 8, 2020

592

help

Let $\triangle ABC$ be a right triangle such that $B$ is a right angle. A circle with diameter of $BC$ meets side $AC% at $D$ If $AD = 1$ and
$BD = 4,$
then what is
$CD$ read more ..

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Guest Mar 8, 2020

365

math help

Old MacDonald has 5 chickens, 4 donkeys, and 7 emus. How many ways can he pair up the animals so that every pair consists of animals of different species? (The order of the animals within each pair does not matter, and the order among the pairs does not read more ..

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Guest Mar 8, 2020

333

Please help!

The Highly Improbable Foods Company makes vegetarian versions of burgers, hot dogs, and chicken wings, and they offer two platters. Platter A consists of one burger, three hot dogs, and 5 chicken wings, which costs $16. Platter B consists of two read more ..

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Guest Mar 8, 2020

611

+35

Some Hlep please

Suppose we have a bag with 10 slips of paper in it. Eight of these have a 3 on them and the other two have a 9 on them.
d) How many 9's do we have to add to make the expected value equal to 6?
e) How many 9's do I have to add before the expected read more ..

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JustAnotherFailure Mar 8, 2020

567

+35

Hey! :) Please help, thanks!

Hi everyone! This is my first time using this site. If I am doing anything wrong or if I should fix anything, please tell me! Thank you all very much! :D

Suppose we have a bag with 10 slips of paper in it. Eight of these have a 3 on read more ..

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JustAnotherFailure Mar 8, 2020

692

9 + 10

hi what is 9 + 10

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Guest Mar 8, 2020

-2

602

+194

Math Help, Counting and Probabilty

A stick is 5 units long. It is broken at two points, chosen at random. What is the probability that all three pieces are longer than 1 unit?
Thanks so much for help in advance :)

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somehelpplease Mar 8, 2020

-2

624

+194

What's the best type of lizard? Whoops, sorry, I meant Math Help Please

Let triangle DEF be equilateral, where the side length is 3. A point G is chosen at random inside the triangle. Find the probability that the length DG is at most 1.
Help would be SO appreciated! Thank you!

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somehelpplease Mar 8, 2020

-1

637

+194

I really need help!!!

Right triangle XYZ has legs of length XY=12 and YZ=6. Point D is chosen at random within the triangle XYZ. What is the probability that the area of triangle XYD is at most 12?

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somehelpplease Mar 8, 2020

All Questions ⁺⁰230410 Questions

help

Complex Numbers

please help :)

If a person consumes 5.5 × 105 kcal in a day and one barrel of oil can produce 3.7 × 106 kcal, what is the equivalent of energy consumed per

please help

Linear Algebra Question

Help plzz

Geometry Question — Triangles

GEOMETRY XI

help plz

Melody regains 1st!

HALP ASAP

Halp

Answer ASAP Please!!!

deleted

help

math help

Please help!

Some Hlep please

Hey! :) Please help, thanks!

9 + 10

Math Help, Counting and Probabilty

What's the best type of lizard? Whoops, sorry, I meant Math Help Please

I really need help!!!

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