All Questions +0 234931 Questions

Let ABCDEF be a convex hexagon. Let A'B'C'D'E'F' be the centroids of triangles FAB, ABC, BCD, CDE, DEF, EFA, respectively.

(a) Show that every pair of opposite sides in hexagon A'B'C'D'E'F' read more ..

Guest Mar 24, 2020

745

HELP ASAP PLZ!

Let B, A, and D be three consecutive vertices of a regular 18-gon. A regular heptagon is constructed on AB with a vertex C next to A. Find angle BCD in degrees.
Plz help as soon as you can!

Guest Mar 24, 2020

-1

555

Plz help ASAP

Two ferries depart from opposite banks of a river simultaneously, and cross the river moving at constant speeds and perpendicularly to the river banks. The ferries meet each other at a point that is 700 meters away from the closest riverbank. When they read more ..

Guest Mar 24, 2020

899

hard!

How many zeroes do we write when we write all the integers from 1 to 243 in base 3?

My incorrect work: 1-242 inclusive in base 3 would be 1-22222_3. The possible zeroes will be 216. Then, account for 243, then add another 5 zeros read more ..

Guest Mar 24, 2020

1090

+296

Base 3 question

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EpicWater Mar 24, 2020

606

Please help

Find the distance between Q = (3, -7, -1) and the line through A = (1, 1, 2) and B = (2, 3, 4).

Which of the following statements are correct?
A. If one interior angle of a parallelogram is a right angle, then the parallelogram must be a rectangle.

B. If two diagonals of a rectangle are perpendicular, then the rectangle read more ..

Guest Mar 24, 2020

572

plz answer quickly

For how many integers $a$ satisfying $1 \le a \le 23$ is it true that $a^{-1} \equiv a \pmod{24}$?

Guest Mar 24, 2020

1035

Please help (modular arithmetic)

The amount v of vacation time (in hours) that an employee earns varies directly with the amount t of time she works. An employee who works 2 months earns 36 hours of vacation time.
a. Write a direct variation equation read more ..

Guest Mar 24, 2020

533

whoever answers this gets cured of covid-19 instantly please

Let B, A, and D be three consecutive vertices of a regular 18-gon. A regular heptagon is constructed on with a vertex C next to A. Find in degrees.

Guest Mar 24, 2020

2563

Let B, A, and D be three consecutive vertices of a regular 18-gon. A regular heptagon is constructed on with a vertex C next to

Let IJKLMN be a hexagon with side lengths IJ = LM = 2, JK = MN = 3, and KL = NI = 8. Also, all the interior angles of the hexagon are equal. Find the area of hexagon IJKLMN.

** I got but I read more ..

Guest Mar 24, 2020

2264

Let IJKLMN be a hexagon with side lengths IJ = LM = 2, JK = MN = 3, and KL = NI = 8. Also, all the interior angles of the hexagon are equal.

Hi! I'm stuck on this problem. (It has three parts). I'm not sure how to turn it into LaTeX, sorry.
a) Consider the matrix\[\mathbf{A} = \begin{pmatrix} 2 & 4 \\ 1 & 2 \end{pmatrix}.\]If the columns of $\mathbf{A}$ are linearly independent, read more ..

Guest Mar 24, 2020

-3

758

A little help pls? :)

what two when added together is 63 and the difference between the 2 numbers are 19

benknocker Mar 24, 2020

589

help me smart people

off-topic

The variable y varies inversely with x . Write an inverse variation equation that relates x and y.
When x=6x, y=2

Find x when y=1. read more ..

Guest Mar 24, 2020

546

I'm stuck on this question

a+b=13 b+c=24 c+a=19 what is the value of a+b+c.

Guest Mar 24, 2020

596

help

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Guest Mar 24, 2020

502

halppp

You want to raise $500 for a charity. You volunteer h hours and raise r dollars each hour. The equation hr=500 represents this situation. Does this represent direct variation, inverse variation, or neither? read more ..

Points A, B, and C are on sides WX, YZ, and XY of rectangle WXYZ as shown below such that XA = 4, YB = 18, angle ACB= 90 degrees, and YC = 2XC. Find AB.

**The answer is not 4sqrt31 or 2sqrt131 read more ..

Guest Mar 24, 2020

-2

2238

Please help! Due tonight!

find if the graph of has a hole at , a vertical asymptote at , no horizontal asymptote, and

much help appreciated! :((( read more ..

Guest Mar 24, 2020

Mar 23, 2020

514

help please!

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Guest Mar 23, 2020

508

help!

The sum of two numbers is 37. The greater number is 5 more than three times the lesser number. What is the lesser of the two numbers?

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Guest Mar 23, 2020

679

The variable varies directly as the square of , and varies directly as the cube of . If equals

The variable varies directly as the square of , and varies directly as the cube of . If equals when equals 2, what is the value of when equals ? read more ..

Circle O is tangent to AB at A, and angle ABD = 90 degrees. If AB = 12 and CD = 18, find the radius of the circle.

Guest Mar 23, 2020

807

Please help me, I would really appreciate it :)

In cyclic quadrilateral ABCD, AB = 2, BC = 3, CD = 10, and DA = 6. Let P be the intersection of lines AB and CD. Find the length BP.

Guest Mar 23, 2020

642

Please help! Thank you so much

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Guest Mar 23, 2020

2925

math

Assume the random variable X is normally distributed, with mean
μ=41 and standard deviation σ=9. Find the 5th percentile.