ZeHanz
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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...
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Questions Answered
Cold3693:
Group Title
Find the real of imaginary solutions of each equation by factoring. The equation is x^4 - 5x^2 + 4 = 0
updated one month ago
5 replies
3 Medals
Mathematics
r.g:
Group Title
Is (1)/(z-i) meromorphic at C?
updated 2 months ago
4 replies
1 Medal
Mathematics
mateosa:
Group Title
what would be the answer of ln ((e^a)/(e^b))? Thanks
updated 3 months ago
6 replies
1 Medal
Mathematics
sumayyahzidan10:
Group Title
g(x) = cosh(ln x) find the derivative
updated 3 months ago
3 replies
No Medals Yet
Mathematics
Ahsome:
Group Title
Find the equation of the directrix, given the coordinates for the focus and the vertex
updated 4 months ago
35 replies
1 Medal
Mathematics
angela10:
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how do you convert 320km/h to m/s
updated 4 months 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 4 months ago
25 replies
No Medals Yet
Mathematics
olipop2002:
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medal + fan!!!!!The graph of following ordered pairs: 1,1 2,3 4,7 5,9
…
updated 6 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 6 months ago
27 replies
2 Medals
Mathematics
Shelbylynn97:
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Can someone please show me step by step how to do this??? This is geometry: Simple Harmonic Motion. Picture attached below.
updated 6 months ago
7 replies
2 Medals
Mathematics
ard456:
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How to graph f(x) = x^3 + 4x^2 - x - 4
updated 8 months ago
8 replies
1 Medal
Mathematics
Bestud:
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Find the distance traveled by an object on the interval [0, 5] if its velocity is v(t)= sin((pi/3)t)
updated 8 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 9 months ago
3 replies
1 Medal
Mathematics
elliecosme:
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Can you help me with another problem? @ZeHanz
updated 9 months ago
18 replies
1 Medal
Mathematics
elliecosme:
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Help please!
…
updated 9 months ago
12 replies
3 Medals
Mathematics
jarredondo115:
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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 9 months ago
24 replies
No Medals Yet
Mathematics
keke_luvs_u:
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i think its B.
Which of the following is a true statement?
…
updated 9 months ago
7 replies
2 Medals
Mathematics
Awesomeness3291:
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i have 5 questions. medal and fan, pppllleeeeaasseee. i only have 10 minutes
updated 9 months ago
22 replies
1 Medal
Mathematics
elliecosme:
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Help please!
Fan and medal!
…
updated 9 months ago
20 replies
2 Medals
Mathematics
SeasAventura:
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(y^-4)^4 and the answer can't have negative exponents...any help please?
updated 9 months ago
8 replies
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Mathematics
aprilangel09:
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Find the next term in this arithmetic sequence: 2/3, 2, 3 1/3, ____
…
updated 9 months ago
4 replies
1 Medal
Mathematics
kaylaelizabeth:
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math help anyone!!
updated 9 months ago
7 replies
1 Medal
Mathematics
xhesino:
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prove that 2^n>n for every n
with mathematical induction
updated 9 months ago
20 replies
No Medals Yet
Mathematics
yoitsren:
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find exact value: inverse tan(tan 7pi/4). Medal to whoever can help describe the steps. Im not good at solving the radians.
updated 10 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 10 months ago
12 replies
1 Medal
Mathematics
Semperfi:
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10,000,000,000 =
1010
…
updated 10 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 10 months ago
3 replies
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Mathematics
wildfire95:
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find he series shown
∑n=3∞(2n+5)
these r the choices:
…
updated 10 months ago
5 replies
1 Medal
Mathematics
jamainehouston:
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Rational root theorem find all roots 3x^3-13x^2+13x-3
updated 10 months ago
2 replies
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Mathematics
cordell10:
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How many millimeters are in 90 centimeters?
updated 10 months ago
4 replies
No Medals Yet
Mathematics
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