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Tutors Answer Your Questions about Complex Numbers (FREE)
Question 16700: The height of a triangel is 25 inches grater than its base. The area of the triangle is 625 square inches. The height of the triangle is __ inces and the base of the triange is __ inches.
Click here to see answer by pwac(251)   |
Question 17128: You fire a rifle straight up. Your bullet leaves your fun at a velocity of 960 feet per second. Ignore air resistance. Consider the mussle of you gun to be at height zero. The bullet will reach its maxium altitude of __ feet after __ seconds.
Click here to see answer by rapaljer(3611) |
Question 17156: What are the exact steps that I need to do in this problem?
Let: U=-8+9i, v=4+3i, w=6-4i
Solve the following equation for : x
ux+v=w so you do x=w-v/u
I got it to this point.....(6-4i-4+3i)/(-8+9i).
I go to solve it by multiplying the top and bottom by -8+9i and do the formlua
(ac+bd) + (bc-ad)i / c^2+D^2 and then
((ac+bd)/(c^2+d^2))+((bc-ad)/(c^2+d^2))i. Where am I going wrong?
Click here to see answer by venugopalramana(3286)  |
Question 17334: Here is a small challenge for your entertainment and gratification. For any natural number n , let f(n) denote the sum of the numbers from 1 to n. Thus f(1)=1,f(2)=1+2=3 f(3)=1+2+3=6,f(x)=1+2+3+....+100=5050, etc.
It turns out that f is a polynomial of degree 2 in n. Figure out the coefficients of f:
f(n)=_?__n^2+_?__n+_?_,
There is a story about Carl Friedrich Gauss (1777-1855) who may have been the most outstanding mathematician in human history. According to the story, when Gauss was seven years old, his teacher at one stage was unhappy with the class and as a punishment he asked them to compute f(100) . Gauss' class mates started writing the numbers from 1 to 100 on their paper, and adding those numbers. Gauss stared at the ceiling and then wrote the single number 5050 on the sheet and handed it in. You aren't Gauss, but you also aren't seven years old, so maybe you can figure out what he was thinking!
Click here to see answer by venugopalramana(3286) |
Question 17330: The obelisk in the movie 2001 has the shape of a rectangular box with lengths x, 4x, and 9x, where x is a parameter.
The volume V of the obelisk is a polynomial expression in x of degree ___ and leading coefficient _____ .
In fact, V=_______ (enter an expression in ).
Click here to see answer by venugopalramana(3286) |
Question 17366: I need to match the following. The notes the teacher gave me is confusing and I everytime I try to anser the question it is wrong. I was hoping someone could help explain the following definations to me. Even a little help will help me a lot. Thank you.
__1. trinomial
__2. quintic monomial
__3. quartic binomial
__4. cubic polynomial
__5. the square of a cubic polynomial
I have to match them with these
a.(x^3+1)^2
b.x^4-2x^3
c.x^2+2x+1
d.pix^5
e.x^3+3x^2+3x+1
Click here to see answer by Earlsdon(4898) |
Question 17380: 32. The obelisk in the movie 2001 has the shape of a rectangular box with lengths x, 4x, and 9x, where x is a parameter.
The volume V of the obelisk is a polynomial expression in x of degree __ and __leading coefficient .
In fact, V=___(enter an expression in x ).
Click here to see answer by venugopalramana(3286) |
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Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980
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