how do you define x to be from minus pi to plus pi in matlab?
i tried:
x = -pi : piBut when i said plot (x,y)
Matlab says:
"Error using plot
Data must be numeric, datetime, duration or an array convertible to double"
(i already defined y interms of x, that function is ok)
so i culd not...
what is the area of triangle ABC in the attached? answer is 18
i can not construct any similar triangles here. all i can see is area of ACD is 3 times area of ABD but how does it help me...
i extended the line to new point F
DF = DE = 3 as they are similar triangles with one side equal
also EC = FC now
after that ABC = DBE and i get some equations with really high numbers which also didnt give the result so either i made the equation wrong or something else... anyway, this is the...
i know my diagram is out of scale. and that is not the question here.
we are supposed to solve this question in a test by knowledge of geometry, without using any rulers or calculators or anything, in 1-2 minutes. so we do not have the means or time to draw this to scale and solve it like...
Hello,
what is the length of x in the attached?
I tried the following:
of course BE = 5, and also the point D must be the center of internal circle that is tangent to triangle and from there i came up with some equations together with the side ratio formulas of angle bisectors but it didnt...
great, and thanks
and what if we tried to solve with absolute value like i tried by taking square roots of both sides? can it be done?
if so how?
if not why not?
x^4 = (5x+6)^2
then what is the multiplication product of all values x can take?
i tried taking square roots of each and wrote in absolute value and found 6, 1, -1 (may be wrong) already but there must be more or different because it is not even in answer choices and the answer should be -36
what is the length x? (FH and HC perpendicular too, which I missed to write)
I am totally stuck can not make any progress on this question. Answer should be 5. I don't know how to obtain it
Hello,
In the attached, what is the minimum integer value x can take?
AD and BD are angle bisectors
the answer is 16 - but i do not know how they did it
I am totally stuck, could not think of anything here. The angle bisector formula I know does not fit here
what is 1^21 + 2^21 + 3^21 + ... + 18^21 in mode 19?
i can only think about individually calculating equivalents in mode 19 and then adding them up but there must be a better way then finding equivalents of exponentials of numbers from to 1 to 18, as this question is expected to be solved in...
how can i write 17 x 4^4 with respect to base 4?
here is what i did:
i divide 17 by 4 twice and get 101 on base 4, and then say 1 x 4^6 + 1 x 4 ^ 4
is it correct?
if the sun disappears, the Earth would go dark and life would end ...
it would also go out of orbit
but how soon? immediately?
even the light takes 8 minutes to reach earth, as they are so far away...
if the whole mass of sun disappeared suddenly... would Earth go out of orbit...