violetzhang07

8 Questions
16 Answers

0

575

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help on algebra! thanks! :D

A quadratic of the form has roots of x = 3 + sqrt5 and x = 3 - sqrt{5} The graph of y = -2x^2 + bx + c is a parabola. Find the vertex of this parabola.
I think I might know how to start this, but any hints appreciated! read more ..

violetzhang07 Oct 5, 2020

+2

863

1

+79

help on geometry hw

In regular octagon ABCDEFGH, AB=8. Find AC, AD, and AE! Thanks in advance!

violetzhang07 Jul 9, 2020

+1

870

1

+79

easy question alert

Alice is thinking of a line. How many points on that line does she need to show Bob in order for Bob to know exactly which line she is thinking about?

violetzhang07 Jun 8, 2020

+2

539

1

+79

Help with Mathcounts

how many 7 digit phone number have their digits in non-increasing order? That is, every digit is either lower in value or equal in value to the previous digit.

violetzhang07 Jun 4, 2020

+3

673

7

+79

help with question asap! thanks in advance!

is there a right triangle such that all 3 sides are integers? Thanks!

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violetzhang07 Jun 4, 2020

+1

1036

6

+79

hello plz help the answers I've received so far are all incorrect. Sorry!

In the diagram below, angle PQR=PRQ=STR=TSR, RQ=8, SQ=2. Find PQ

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violetzhang07 Jun 3, 2020

+2

640

2

+79

plz help lol

In the diagram below, angle PQR = angle PRQ = angle STR = angle TSR RQ = 8, and SQ = 2. Find PQ.
For the diagram: https://latex.artofproblemsolving.com/4/3/0/ 4302d19b0763e32ee077a4add3ad46f7bc977ea2.png

violetzhang07 Jun 2, 2020

+3

610

2

+79

help please I will Venmo you... jk :)

square 1 is inscribed in circle 1 and square 2 is inscribed in circle 2. THe perimeter of square 1 is 24√2 inches and the perimeter of square 2 is 6√2 inches. What is the ratio of th area of circle 1 to circle 2? THANK YOU SO MUCH

violetzhang07 Jun 2, 2020