ZeHanz
Name:
School:
About:
I'm a high school maths teacher from Holland.
I like to help people with maths questions! Many times I learn from it too, because the topics from all over the world are more varied than those from my country alone.
OpenStudy saves me from getting rusty...
Most Active Subjects
Questions Asked 0
Questions Answered 0
Medals Received 0
Questions Asked 0
Questions Answered 0
Medals Received 0
Questions Asked 0
Questions Answered 1
Medals Received 0
Questions Asked 0
Questions Answered 0
Medals Received 0
Questions Asked 0
Questions Answered 4
Medals Received 1
Questions Asked 0
Questions Answered 1
Medals Received 1
Questions Asked 0
Questions Answered 0
Medals Received 0
Questions Asked 0
Questions Answered 2
Medals Received 1
Questions Asked 2
Questions Answered 0
Medals Received 0
Questions Asked 0
Questions Answered 40
Medals Received 15
Questions Asked 0
Questions Answered 0
Medals Received 0
Questions Asked 0
Questions Answered 34
Medals Received 15
Questions Asked 0
Questions Answered 4
Medals Received 2
Questions Asked 0
Questions Answered 6
Medals Received 1
Questions Asked 0
Questions Answered 1
Medals Received 0
Questions Asked 0
Questions Answered 1
Medals Received 1
Questions Asked 1
Questions Answered 61
Medals Received 17
Questions Asked 0
Questions Answered 3
Medals Received 1
Questions Asked 0
Questions Answered 0
Medals Received 0
Questions Asked 0
Questions Answered 1
Medals Received 1
Questions Asked 2
Questions Answered 1050
Medals Received 659
Questions Asked 0
Questions Answered 1
Medals Received 0
Questions Asked 0
Questions Answered 2
Medals Received 1
Questions Asked 0
Questions Answered 1
Medals Received 1
Questions Asked 0
Questions Answered 12
Medals Received 6
Questions Asked 0
Questions Answered 0
Medals Received 0
Questions Asked 0
Questions Answered 0
Medals Received 0
Questions Asked 0
Questions Answered 1
Medals Received 0
Questions Asked 0
Questions Answered 0
Medals Received 0
Questions Asked 0
Questions Answered 4
Medals Received 1
Questions Asked 0
Questions Answered 1
Medals Received 1
Questions Asked 0
Questions Answered 0
Medals Received 0
Questions Asked 0
Questions Answered 2
Medals Received 1
Questions Asked 2
Questions Answered 0
Medals Received 0
Questions Asked 0
Questions Answered 40
Medals Received 15
Questions Asked 0
Questions Answered 0
Medals Received 0
Questions Asked 0
Questions Answered 34
Medals Received 15
Questions Asked 0
Questions Answered 4
Medals Received 2
Questions Asked 0
Questions Answered 6
Medals Received 1
Questions Asked 0
Questions Answered 1
Medals Received 0
Questions Asked 0
Questions Answered 1
Medals Received 1
Questions Asked 1
Questions Answered 61
Medals Received 17
Questions Asked 0
Questions Answered 3
Medals Received 1
Questions Asked 0
Questions Answered 0
Medals Received 0
Questions Asked 0
Questions Answered 1
Medals Received 1
Questions Asked 2
Questions Answered 1050
Medals Received 659
Questions Asked 0
Questions Answered 1
Medals Received 0
Questions Asked 0
Questions Answered 2
Medals Received 1
Questions Asked 0
Questions Answered 1
Medals Received 1
Questions Asked 0
Questions Answered 12
Medals Received 6
0
Questions Answered
Ahsome:
Group Title
Find the equation of the directrix, given the coordinates for the focus and the vertex
updated 6 days ago
35 replies
1 Medal
Mathematics
angela10:
Group Title
how do you convert 320km/h to m/s
updated 7 days ago
34 replies
1 Medal
Mathematics
Sthalha1:
Group Title
Using the following equation, find the center and radius of the circle you must show all work and calculation to recieve credit
x^2 -4x+y…
updated 9 days ago
25 replies
No Medals Yet
Mathematics
olipop2002:
Group Title
medal + fan!!!!!The graph of following ordered pairs: 1,1 2,3 4,7 5,9
…
updated 2 months ago
16 replies
1 Medal
Mathematics
amybrooke:
Group Title
Will fan and medal
least common denominator
x^4 / x^2x+1 -8 / x^2+5x+4
updated 2 months ago
27 replies
2 Medals
Mathematics
Shelbylynn97:
Group Title
Can someone please show me step by step how to do this??? This is geometry: Simple Harmonic Motion. Picture attached below.
updated 2 months ago
7 replies
2 Medals
Mathematics
ard456:
Group Title
How to graph f(x) = x^3 + 4x^2 - x - 4
updated 4 months ago
8 replies
1 Medal
Mathematics
Bestud:
Group Title
Find the distance traveled by an object on the interval [0, 5] if its velocity is v(t)= sin((pi/3)t)
updated 4 months ago
21 replies
No Medals Yet
Mathematics
genesis202022:
Group Title
Can someone please explain to me how to solve this problem?
6-4(3-5)^2+30÷5
Like I know the answer but I don't know the steps to solving i…
updated 5 months ago
3 replies
1 Medal
Mathematics
elliecosme:
Group Title
Can you help me with another problem? @ZeHanz
updated 5 months ago
18 replies
1 Medal
Mathematics
elliecosme:
Group Title
Help please!
…
updated 5 months ago
12 replies
3 Medals
Mathematics
jarredondo115:
Group Title
Suppose that sin theta = 3/5 and 0<theta<pi/2. I have to find the exact values of cos theta/2 and tan theta/2.
updated 5 months ago
24 replies
No Medals Yet
Mathematics
keke_luvs_u:
Group Title
i think its B.
Which of the following is a true statement?
…
updated 5 months ago
7 replies
2 Medals
Mathematics
Awesomeness3291:
Group Title
i have 5 questions. medal and fan, pppllleeeeaasseee. i only have 10 minutes
updated 5 months ago
22 replies
1 Medal
Mathematics
elliecosme:
Group Title
Help please!
Fan and medal!
…
updated 5 months ago
20 replies
2 Medals
Mathematics
SeasAventura:
Group Title
(y^-4)^4 and the answer can't have negative exponents...any help please?
updated 5 months ago
8 replies
No Medals Yet
Mathematics
aprilangel09:
Group Title
Find the next term in this arithmetic sequence: 2/3, 2, 3 1/3, ____
…
updated 5 months ago
4 replies
1 Medal
Mathematics
kaylaelizabeth:
Group Title
math help anyone!!
updated 5 months ago
7 replies
1 Medal
Mathematics
xhesino:
Group Title
prove that 2^n>n for every n
with mathematical induction
updated 5 months ago
20 replies
No Medals Yet
Mathematics
yoitsren:
Group Title
find exact value: inverse tan(tan 7pi/4). Medal to whoever can help describe the steps. Im not good at solving the radians.
updated 6 months ago
2 replies
1 Medal
Mathematics
hotgurl72:
Group Title
Consider the extremely large integers x = 2X3X5X7X11X13X17X19X23X29 and y = 29X31X37X41X43X47X53X59X61X67. What is the greatest common divis…
updated 6 months ago
12 replies
1 Medal
Mathematics
Semperfi:
Group Title
10,000,000,000 =
1010
…
updated 6 months ago
6 replies
No Medals Yet
Mathematics
Semperfi:
Group Title
A kilobyte is 210. A megabyte is 220 bytes. How many kilobytes are in a megabyte? Use the exponent rule for division to find your answer an…
updated 6 months ago
3 replies
No Medals Yet
Mathematics
wildfire95:
Group Title
find he series shown
∑n=3∞(2n+5)
these r the choices:
…
updated 6 months ago
5 replies
1 Medal
Mathematics
jamainehouston:
Group Title
Rational root theorem find all roots 3x^3-13x^2+13x-3
updated 6 months ago
2 replies
No Medals Yet
Mathematics
cordell10:
Group Title
How many millimeters are in 90 centimeters?
updated 6 months ago
4 replies
No Medals Yet
Mathematics
tori22:
Group Title
solve ∫e^-x(cosx)dx
updated 6 months ago
2 replies
No Medals Yet
Mathematics
tori22:
Group Title
Find the indefinite integral (xe^x)dx
updated 6 months ago
22 replies
1 Medal
Mathematics
Pilot26:
Group Title
verify the idenity? (acost-bsint)^2+(asint+bcost)^2=a^2+b^2
updated 6 months ago
12 replies
1 Medal
Mathematics
mason22:
Group Title
Help please what's the factored form of the expression w^2 + 12w + 36
updated 6 months ago
2 replies
1 Medal
Mathematics
> Older questions